P0449 code

Definition. The P0449 is a fairly straight forward code pointing to a fault in the EVAP Vent Solenoid, and once into the diagnostic flow chart, you are directed to the above mentioned TSB. The P0449 is for the valve, the P0440 is a general evaporative emissions system failure, caused by the P0449. The finally the P0449 was set. Have had a problem with starting after fueling, for years. Gas cap ok. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. ★★★ Uniblue Speedupmypc 2 ★★ Fix, Clean, Repair # [ UNIBLUE SPEEDUPMYPC 2 ] & Improve Its Performance! SPEED Up Your PC - Free Scan Now! (Recommended). 20/01/2018 · How to Fix Code P0449 Evap Pics,Video and part #'s. Car not having problem. If the light does come back on, it means there's some issue with the canister vent circuit, either the valve is bad, or the wires, etc. An ignition voltage is supplied directly to the EVAP Vent valve relay coil. P0449 Auto Trouble Code. Had it in to the dealer several times for a "Check Engine Light". htmlP0449 Code de défaut: Système de purge canister, soupape de ventilation -panne du circuit Cause possible: Faisceau, électrovanne de purge canister, calculateur de gestion moteursalut même problème mais résolu il s'agissait du tuyau plastique qui part du réservoir vers le canister! il était pincé tout simplement ce qui donnait ce code erreur. Under precise operating conditions getting ready to do mine this weekend. This can be caused by either too little or too much electrical resistance or a mechanical problem with …P0449 code will typically not be accompanied by any noticeable symptoms other than the smell of gas and the service engine soon light. Tried resetting it a few times and it kept returning. ★★★ Error Code P0449 Code P0449 can also likely be the vapor canister purge valve. Circuit Description. Brief explanation of the P0449 code and definition of P0449 is the bottom side. This is my firts post here I have a 2009 GMC Sierra 4. The reader returns codes P0440 and P0449. 14/03/2012 · I recently had my Check Engine Light (CEL) come on in my 2006 Chevrolet Silverado. ★★★ Error Code P0449 Welcome to the forum, EDIT: Item 726 (which is highlighted) is the purge solenoid. The ICD-10 Code P0449 is assigned to Diagnosis “Newborn affected by maternal use of other drugs of addiction”. What does the code mean? OBD-ii Code P0449 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The P0449 will cause the P0442. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. ★★★ Error Code P0449 p0449 is the error code i'm getting. are you having the hard start after a fill up? drawing a blank at the moment- but theres 2 codes. Look for cracks around the seal on cap. 3) Its been off all day today , my first 2nd gen , previous half dozen or so were all first gen only 1 Vortec . Trouble code P0449 can beThanks for sharing I have a GMC Sierra 2009 and today 04/2014 I just have the P0449 code on again. Without the proper tools you cant check for a ground signal from the pcm but you can check the connector and the wire. P04. Is this located on the intake somewhere or does it have a charcoal filter underneath like pickups do? 2006 Chevy Malibu 2. The computer sees this as a problem with not enough ventilation being allowed into the fuel tank. com/p0449-chevy-silveradoP0449 code will typically not be accompanied by any noticeable symptoms other than the smell of gas and the service engine soon light. Just forget about it. My local parts counter also has them in stock which says it is a common problem. Light is still on. Anyone happen to know the part number (or where to find it) to replace a Evaporative Emission Control System Vent Valve (trouble code p0449 appeared 2-3 times)? my 2000 sle is throwing this code here recently. But I also wanted to see if it is possibly a leaky gas cap. I read a few posts on the board and decided to start by replacing the Vapor Canister Purge Valve (AC Delco 214-1685) since it was cheap and easy to get to. P0440, P0441, P0442, P0446 EVAP codes on GM vehicles P0440, P0441, P0442, P0446 EVAP codes on GM vehicles. ★★★ Error Code P0449 The vent solenoid has a power and ground and that code sets when either the solenoid is bad or the power or ground wire or connection is no good. Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit INTERMITTENT in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; First I got a code for O2 Sensor bank 2 sensor. I want to found the solution of this problem because is killing me I ready change the evap solenoid with the filter, even the gas cap and the code is still there do you know what else could it be. So as a service to you, they get you a guaranteed part and put it in place. 26/09/2011 · Its a code for evap vent valve performance. 700r4transmissionhq. The ECM sets the OBDII code when EVAP Vent Valve/Solenoid is not to factory specifications. in the case on my 07 silverado 1500 classic it was the valve which costs me $36 in parts, 45 minutes of labor p0449 is the error code i'm getting. ★★★ Best Registry Fix ★★ Fix, Clean, Repair # [ BEST REGISTRY FIX ] & Improve Its Performance! SPEED Up Your PC - Free Scan Now! (Recommended). Diagnosis. From what I can see it is one of 2 possible causes. ★★★ Error Code P0449 Hi Guys, haven't posted in a while. The most probable cause is a vacuum leak or a bad fuel cap. I have the 2. I went to my friends house and used his OBDII code reader. com/p0449_gmc. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. Diagnosis. In depth diagnosis and inexpensive repair of common P0449 engine code on these popular Chevy and GMC light trucks. Code p0449 IS for the evap vent solenoid. Cause: Engine speed over 600 rpm, system voltage from 6-18v, then the PCM detected that the Actual and Commanded state of the Vent Control solenoid control circuit did not match for over 5 seconds. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0449 Gmc code?My 09 Silverado with 52,000 miles today the CEL came on. What does this mean? OBD2 Code P0449 GM definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. 19/01/2013 · First the "gas cap" warning came on then the fault code for large leak was set. I first checked the gas cap condition/tightness and cleared the code with my scanner. Auteur : realfixesrealfastVues : 749 KP0449 Gmc - Evaporative Emission Vent Valve …Traduire cette pagehttps://www. 8L Automatic 2013 Check engine light has been coming on, triggering a P0449 Code, Gas tank is ¾ full. P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction This code can be caused by a loose or faulty gas cap. It needs the vent solenoid replaced and the charcoal canister blown out with a little compressed air to solve the issue from happening again, which is the location of the valve allows dust and dirt to enter the EVAP system thus it damages the valve and plugs the charcoal canister. Read emissions expert information and Detailed information on diagnosing and repairing a P0449 DTC code which refers to a malfunction with the EVAP vent valve solenoid circuit. We have also included diagnostic procedures you can take to your repair shop if the …29/06/2018 · 33K miles on car, 1. Please right click on the image and save the image. Gm has a PCM flash fix for this Document ID# 1812070 2006 Chevrolet Corvette DTC P0443 or P0449 Diagnostic Instructions • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. It means it's every future failure has no backing. There’s very little info on the web about code P0449P. P0449 Isuzu Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Hey All I have an 09 Traverse LS showing the P0449 code. P0449 is a universal OBDII trouble code. Replaced EVAP canister vent solenoid valve and that did not fix the problem. However as the case with all Check Engine Light codes, it should be fixed as soon as possible to prevent any further damage to your vehicle. Here is a description and how to diagnose EVAP code P0449 Repair: Pontiac G6 Engine Light P0449. onw points to the purge valve up front by the throttle body- which is the one that usually goes. A circuit fault code is always going to be an electrical issue. Note the location. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. 22/09/2018 · hello,i have 1 code its a p0449 for vent valve solenoid. Code P0449 indicates that the evaporative control (EVAP) system vent valve solenoid is malfunctioning. P0449 Gmc Description The Engine Control Module monitors the Evaporative Emission System Vent Valve/Solenoid system wiring for opens or shorts. south main auto repair llc 103,181 views p0449 code How to fix p0449 code keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website Possible causes – Faulty canister vent control valve– Purge Control Valve harness is open or shorted– Purge Control Valve electrical circuit poor connection When is the code detected? on 2006 c/k 1500 series gm trucks, the evaporative emissions vent valve solenoid is in front of the evap cannister underthe driverside of the truck. This page contains information about ICD-10 code: P0449. From what I have gathered so far this could be more of a wiring problem than just replacing the component itself and hoping that fixes it. They only indicate the circuit or system that needs further diagnosis, or the unacceptable operating condition. - Pckeeper Fix The EVAP vent solenoid is located beside the right fuel tank just around the muffler on the underside of the car. so my question is can i buy the replacement part or do i have to get the remote filter kit? i dont do a lot of off road driving or travel around dusty/dirty areas. You folks have trained me well enough that I know not to just throw parts at this. I'll show how to replace the defective Vapor Canister Vent Solenoid, which is causing the engine light on my dash to come on. i put the multimeter to the fuse for the solenoid in the fuse block under the back seat and that too is ☆☆ Error Code P0449 ::Fix Error & Repair. This means that regardless of which make or model of vehicle, the code will mean the same thing (Malibu or not, as long as it was manufactured after 1996). control system vent valve or solenoid circuit. C6 Corvette General Discussion - Evap vent solenoid and P0449 - FYI I just purchased my 2nd replacement evap vent solenoid valve. Ok, wife called me an told me check engine light came on this morning on her way to work. Answer: These codes are EVAP system codes related to the vent solenoid. Error Code P0449 means there's a problem in the Evaporative Emission Control System Vent Valve or Solenoid Circuit malfunction. Take it back to the shop and tell them the car is throwing a code since they worked on the fuel system. P0449 is the only code that comes up on the scanner. P0449 - Evaporatve Emission Control System -Vent Play and Listen this is the quick and easy way to clear the p0449 and p0455 codes on a chevy silverado process is similar for all silverados link to ac delco solenoid 1. See here Mar 13, 2013 Here is a description and how to diagnose EVAP code P0449. Do a careful check of the installation of the aftermarket intake. Re-seated the gas cap and reset the code. 49 is a billable ICD code used to specify a diagnosis of newborn (suspected to be) affected by maternal use of other drugs of addiction. In this video I will show you how to troubleshoot and repair this condition. Look for cracks around the seal on cap. There is a Purge Solenioid on the manifold of the engine. What does that mean? This code is a generic powertrain code. Hope everybody is doing well. After seeing an engine light come on, I drove my 2006 GMC Envoy SLE home, hooked up an OBD II reader and got a P0449 code. i put a multimeter to the harness and it was low voltage. Check Engine Light (AGAIN) Code P0449 Evap Solenoid Vent Valve Replacement and throttle body cleaned for the second time in the life of the vehicle at 78531 miles - only 32,254 miles after these P0449 OBD-II Diagnostic Powertrain (P) Trouble Code Description P0449 OBD-II Trouble Code The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds P0449 code. the fuel tank, filler neck, and fuel cap). I read the code and it was a P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit , the local dealership looked at it and told me it could cost upwards of $1200. This can happen for multiple Jul 5, 2017 Definition of error code P0449 - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. Registry Recycler Windows 8 Download Popular ☆☆ Registry Recycler Windows 8 Download ::Fix Error & Repair. I took it to advanced auto parts and they read the code and wrote it down as "p0449" im trying to google it and see what this means and the stuff that i do find i really dont understandalso my butt warmer on driver side not working a head light is out (i got the bulbs now that wont be a problem changing) its a 2010 6 cyl RS . com/article/p0449-obd-ii-trouble-code-evaporative-emission-control-system-vent-valve-solenoid-circuit-malfunction-by-spencer-claytonP0449 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction". DTC P0449: Evaporative Emission (EVAP) Vent Solenoid Control Circuit Diagnostic Fault Information Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance Actron Diagnostics offers a code look up tool for your automotive diagnostic and scan tool needs. g. It came back with P0449 emissions code. The ECM sets the OBDII code when EVAP Vent Valve/Solenoid is not to factory specifications. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. This is a subreddit for asking Mechanical questions pertaining to vehicles, engines, etc. P0449 Code Description: Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. with a P0449 code according to a borrowed reader from Auto Zone. P0449 engine code for Dodge D100 Pickup provides below are generic codes that may not apply to all vehicles. Can someone tell me exactly what part is causing this. This indicates that a portion of the EVAP control system is no longer functioning properly. Have a 08 Sierra 5. just drove to blockbuster and back, and checked the vacuum (so it would be fully warmed up) 18" at idle, check at the vacuum distro by the drivers side firewall. The canister vent solenoid is located at the right rear of the fuel tank. here is a description and how to diagnose evap code p0449. 4L engine. 12. It appears that the Evaporative Emission Canister Purge Solenoid is bad on our 2000 Montana. - Error Code 0X80240040 Error Code Trouble Code P0449 Definition: EVAP (Evaporative Emission System) purge/vent solenoid circuit malfunction. P0449 Code - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. When a part is referenced in a fault code, it is actually the cause of that code about half of the time. Have a steady DTC P0449, won't reset. This code means pretty much the description you have above-- there's too much vacuum in the fuel tank. ★★★ Error Code P0449 - Survival Man Living Off The Grid 2017. It sounds like it wants to, but doesn't. Either the valve is bad, pcm is bad or power or ground circuit to the vent valve. I cannot figure out what the "vent valve solenoid circuit" is, or what the "EVAP vent valve" is. 29/06/2018 · P0449 Code – Evaporative Emission System Vent Valve / Solenoid Circuit 33K miles on car, 1. Average repair cost is $210 at 86,650 miles. Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. Dodge D100 Pickup manufacturer uses specific Dodge D100 Pickup diagnostic code that are different from the codes shown below. . Chevy Cobalt P0449 Definition. What Does P0449 Mean? The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. We recommend Torque Pro. ☆☆ Error Code P0449 ::Fix Error & Repair. There was also a symptom code of 00 present. If it's got wheels, treads, floats, flies, or has an engine your good to go. P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction Indicator. Problems/Service/Repairs - P0449 Code - The last few days I have had a solid, steady MIL on on the dash. The P0300 Misfire code will need to be diagnosed (analyzed) via an ignition scope. The most common cause of a P0449 is a stuck closed canister close valve. EVAP vent solenoid was told there is one in the front by engine and one near the gas tank. Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums - a website dedicated to all things Chevy Cruze. What does this mean? OBD2 Code P0449 Cadillac definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. Disclaimer: Warnings And Caution If you follow the procedures, techniques and methods shown in this video, be aware that you follow them at your own risk. 2 engine automatic 130K miles The car has set P0449, Evaporative Emission (EVAP) Vent Solenoid Control Circuit. *Updated due to incorrect info* EVAP System Operation The evaporative emission (EVAP) control system limits fuel vapors from escaping into the atmosphere. Any suggestions on where to start with a repair? P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. P0449 GMC Comments Help us improve AutoCodes. 2005 Sportage EX V-6 165000 miles Reading code P0449, check engine light on, runs fine. ☆☆ Error Code P0449 ::Fix Error & Repair. This means that regardless of which make or model of vehicle, the code will mean the same thing (Cobalt or not, as long as it was manufactured after 1996). Information on diagnosing and repairing a vehicle DTC trouble code P0446 which is EVAP emission control system incorrect purge flow. SOURCE: My check engine light is on and I am getting codes P0449 - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction The repair suggested is to replace the canister vent solenoid and relocate it to a position near the fuel filler neck. 9/5/14 Last week my car seemed to hesitate a little when starting until one morning it did not start at all. i replaced the solenoid but code is not clearing. Auteur : Robert HoseaVues : 314 KChevy Silverado P0449 Code Diagnosis: EVAP …Traduire cette pagehttps://www. I have a 2013 and dont expect to be dealing with this anytime soon, but it seems it is a common issue that many trucks deal with a little later in life. The Evap System is designed to trap fuel vapors that would otherwise add pollutants to the atmosphere. My light came on yesterday. P0449 OBD-II Diagnostic Powertrain (P) Trouble Code Description P0449 OBD-II Trouble Code The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. What does this mean? OBD2 Code P0449 Cadillac definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. It sounds like it wants to, but doesn't. ★★★ Error Code P0449 So a couple weeks ago I started throwing this code for a bad evap valve vent solenoid thing. Aug 19, 2018 A very common issue with the Chevy Suburban is the P0449 code. This code may be seen with other EVAP system codes ★★ Error Code P0449 ★★ Fix, Clean [ ERROR CODE P0449 ] And Optimize PC! SPEED Up Your PC FREE Scan Now! (Recommended). I have a 2007 Silverado Classic 1500 Ext Cab 4x4 LT1. l have a 2007 Chevy Silverado that won't start sometimes, but only when it's humid or raining. fails a sub-test, the control module stores a diagnostic trouble code (DTC) in order to indicate the type of fault detected. Engine light on. check to make sure you have not …this video will show you how to fix p0449 emissions dtc on gm vechicles, like tahoe, suburban, yukon, avalanche, silverado, escalade, express. just read some one said check gas cap maybe i put it on to tight?feels little loose side to side. Hello, Ihave replaced the purge vent solenoid and the vent valve it self. Check to make sure that all of the OEM hoses are connected, and all of the clamps are secure. 2006 Chevy Impala with a P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit trouble code. 27/11/2013 · Most of us have had this problem and some have not bothered with it. The 2007 Chevrolet Silverado has 5 problems reported for engine light code p0449. it is most likely your evap canistor and/or valve. Chevrolet Silverado 1500 Check …11/08/2014 · Re: 09 Vue with p0449 code. Anyone happen to know the part number (or where to find it) to replace a Evaporative Emission Control System Vent Valve (trouble code p0449 appeared 2-3 times)? How to fix p0449 code keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website Possible causes – Faulty canister vent control valve– Purge Control Valve harness is open or shorted– Purge Control Valve electrical circuit poor connection When is the code detected? Chevy Diagnostic Code P0449 2008 Chevy Avalanche EVAP Vent Solenoid Test (P0449, P0455) any case studies. While I'm handy with building things and home renovations, my experience under the hood is minimal except for changing filters and oil. Should I replace both or does one go out more often then29/10/2017 · 2005 Sportage EX V-6 165000 miles Reading code P0449, check engine light on, runs fine. The "Check Engine" light in my 2008 Acadia recently came on. Perhaps because of lack of knowledge, lack of tools and or space to work on a vehicle, lack of time, or a variety of other reasons. Code: P0381 Trouble Code: P0449. If they did not replace the Vent Valve with the new version and/or add the filter box in accordance with the TSB, then this is the problem. l have a 2007 Chevy Silverado that won't start sometimes, but only when it's humid or raining. on 2006 c/k 1500 series gm trucks, the evaporative emissions vent valve solenoid is in front of the evap cannister underthe driverside of the truck. its located next to the gas tank and is usually the problem. I have had very bad luck with the dealerships in my area, so i borrowed an OBD ii reader and found the code myself. I replaced the vent valve solenoid located in the left rear wheel well. Chevy Silverado P0449 Definition. The solution the majority of the time is to fix the wiring to the evap vent. 2 is throwing P0449 and p0455 codes. The check engine light came on and it set a p0449 DTC. Chevy Malibu P0449 Definition. The fuel pump wiring is also in that harness. What Does P0449 Code Mean? OBD-II Code P0449 is defined as a Evaporative System Vent Control Circuit Malfunction The evaporative control (EVAP) system captures any raw fuel evaporating from the fuel storage system (e. Here is a description and how to diagnose EVAP code P0449. Not sure of IA laws; so best contact the dealer to find out. 20/08/2014 · OK, went to co-workers with a 2010 Impala LT and swapped his vent and purge valves to the 2008 to remove any doubt and still have the same issue erase codes, says 0 codes found after erasing, read again same P0449 code found. A P0449 Hyundai Sonata is part of the evaporative emissions system. P0449 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction". Put the car on a lift and found a mouse cooked to the center exhaust support (Explained the smell anyway). P0449 OBD-II Trouble Code The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. The new EVAP solenoid should take care of the P0449 Trouble Code your Chevy Avalanche. Check engine light is illuminated with code P0449 from scan tool (Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction). 29/06/2018 · I was tracking down a P0449 code and found the clamp where the air intake attaches to the throttle body was loose. I have a '08 Outlook XE with ~85K. Trouble code P0449 can be. 8L Automatic 2013 Check engine light has been coming on, triggering a …02/08/2010 · P0449 Ignition ON, engine OFF, command the EVAP vent solenoid Not Venting and Venting with a scan tool. The repair suggested is to replace the canister vent solenoid and relocate it to a position near the fuel filler neck. Diagnostic fault codes never say to replace parts or that one is bad. DTC P0449: Evaporative Emission (EVAP) Vent Solenoid Control Circuit , your vent solenoid is opened or the wiring circuit is . They said it's a P0449 code. DTC P0449: Evaporative Emission (EVAP) Vent Solenoid Control Circuit Diagnostic Fault Information Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance Hey Everyone, I keep getting that f***ing check engine light for P0449 on my 2005 GT with 108,000 miles. 3, longtube headers, airiad, and custom tuned, never thrown a code before until last week, this is unrelated to my headers I am sure 1. ★★★ Error Code P0449 What’s mean? OBD2 Code P0449 Definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. Check under hood fuse "4wd/ESCM" and that was good it …What does the code mean? OBD-ii Code P0449 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in …13/03/2009 · * DTC P0449 runs continuously when the above conditions are met. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. I have a 08 Chevy impalaLs and the code p0449 pops up check engine light on replacesed the evap emission control system valve/solenoid malfunction check engine light still in and now my car is not wanting to drive when u put in drive it sounds like it’s in nuetral but slowly will get up to bout10-20 miles ph then will go but as soon as I stop it does same thing over n over I need help please P0449 Mercedes-benz Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. - Blue Screen Htc One Eusing Free Registry Cleaner 1 Download Solving a P0449 Engine Code on a 2008 Chevy Impala (Evaporative Emission System Vent Valve/Solenoid Circuit) Standard About a month ago my car began showing an engine code, which appeared after I ran out of gas (that is its own story). Most of us have had this problem and some have not bothered with it. P0449 Hyundai Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. mon code est p0449, le lien que tu m a donné est pout les codes p0136, p0141 et p0441alors j imagine que c pas la meme chose!!!DTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit. Pontiac Grand Prix P0449 Definition. That could be caused by a stuck open purge valve, a sticking closed This page contains information about ICD-10 code: P0449. What does the code mean? OBD-ii Code P0449 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in …Chevy Silverado Fault Code P0449 2008 Chevy Avalanche EVAP Vent Solenoid Test (P0449, P0455) and bidirectional scan. ★★★ Error Code P0449 hey guys! got a check engine light on the camaro the other day. Very very common issue and gets addressed often. I'm looking at a 2006 Trailblazer EXT, and we've got a p0449 evap code. I went immediately to Advance Auto Parts to get the code and it was a P0449. My 08 Lucerne CXS has the P0449 Evap Vent Valve/Solenoid Circuit code. 4,5/5(3,8 000)Numéro de téléphone : (1) 800-701-6230P0449 | OBD CODEShttps://www. - My Faster PC 5 Download Engine, Intake, Exhaust - P0449 Code Help - Ok, I'm pretty sure its the Purge Control Solenoid, but I have a few questions I have a 2000 tiburon, and I was wondering where the Purge control solenoid is, second, after searching through the internet, I was wondering if this item is available anywhere besides the dealer Best Answer: Thanks for the info. My 09 Silverado with 52,000 miles today the CEL came on. Emissions Light on Code PO449. 1. The shop manual states that the problem can be caused by a canister air filter contamination or …So my check engine light came on today and it was throwing code P0449. OBD2 Code P0449 GM definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. What does this mean? OBD2 Code P0449 GM definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in …DTC P0449 : Evaporative Emission (EVAP) vent Solenoid Control Circuit This code is very common on this vehicle. but when i hooked it up to codereader it said p0449 evap vent valve? & where can i find it so i can change?P0449 Engine Trouble Code. Sounds like they made a mistake and they need to give their work a once-over. The ECM grounds the EVAP canister vent solenoid valve control circuit through an internal switch called a driver. Je vise une C6 et le vendeur la passe en révision et notamemnt pour faire réparer ce code P0449. P0449 the main thing to check is to verify the operation of the VCT solenoid. Error Code P0449 means there’s a problem in the Evaporative Emission Control System Vent Valve or Solenoid Circuit malfunction. Variables in Diagnostics: Hyundai EVAP P0449 (S. The power wire should be live when the key is on so that's easy to check and the solenoid can be jumped to ground to test it. com. Since the parts were cheap and fairly easy to get to, rather than do any further diagnotics, I went to O'Reilly's (using another vehicle) and got both a solenoid and vent valve. DTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit Circuit Description An ignition voltage is supplied directly to the EVAP Vent valve relay coil. My 2008 DTS just started throwing these codes. i need some help please. With only the DTC P0449 to go by, there aren't many clues. Some techs have reasoning that repairing a starter is a disservice to the customer. every time i clear the code pending code is instant and hard code soon follows. p0449- An ignition voltage is supplied directly to the evaporative emission (EVAP) canister vent valve. Solving a P0449 Engine Code on a 2008 Chevy Impala (Evaporative Emission System Vent Play and Listen ill show how to replace the defective vapor canister vent solenoid which is causing the engine light on my dash to come on Code P0449 Vent Solenoid On 2006 Chevy Silverado. Trouble OBD II code P0449 refers your Chevy Silverado’s evaporative emission. They go bad and the vapor canister gets saturated. Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction P0449 AUDI 2,732 Views EVAP System Vent Valve/Solenoid Circuit P0449 BUICK 20,592 Views Evaporative Emission Vent Valve Solenoid Malfunction P0449 CADILLAC 17,710 Views Evaporative Emission Vent Valve Solenoid Malfunction This is a subreddit for asking Mechanical questions pertaining to vehicles, engines, etc. So my check engine light came on today and it was throwing code P0449. P0449 code 262ci Forum (4. Hoping that I didn't have to drop the fuel tank and replace an evap canister or something like that, I ordered the newest iteration of the gas cap from Amazon, $20 or so. Evidently this problem is with one of two solenoids or a vapor canister. Code p0449 pop up own my 2005 c6 need to know if there any photos and location of evap emission control system vent. My 05 Spectra started giving me a P0449 code today. A P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit means there’s a problem with the vent solenoid or the circuit to the solenoid. ★★★ Error Code P0449 I had P0449 pop up after filling the gas tank the other day. Trouble Code P0449 Definition: EVAP (Evaporative Emission System) purge/vent solenoid circuit malfunction. Code p0449. - My Faster PC 5 Download General Description: P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit Detailed Description: The Powertrain Control Module (PCM) controls the EVAP vent valve by grounding the control circuit using an internal switch called a "driver". Probable Causes 1- Purge or vent solenoids defective 2- Loose EVAP system connectors and/or wiring 3- Failed EVAP vent solenoid 4- Failed Gas Cap If you have replaced the gas cap once and P0449 came back this means there is an issue with the EVAP canister vent valve located near the EVAP 1. I told here to pull into autozone, and it was P0449. This last one lasted just 2 years and the original factory installed one lasted 4 years on my 2006. P0449 Auto Trouble Code P0449 the main thing to check is to verify the operation of the VCT solenoid. This means that regardless of which make or model of vehicle, the code will mean the same thing (Silverado or not, as long as it was manufactured after 1996). I did a "search" on the site – found (2) references to the code. 00 to repair. 25/06/2012 · Good evening, I just got the check engine light come on today after work. How to fix Code P0449 on GM vehicles, Silverado , Tahoe, Suburban, Yukon, Avalanche, etc. p0449 code P0449 code definition P0449 is a general OBD2 diagnostic trouble code indicating an issue with the EVAP vent control circuit. In most cases its the valve but have seen broken wires as well. Aside from the obvious issue of air entering the throttle body after the sensor messing with fuel to air ratio, could this be affecting the EVAP valve as well?For the starting issue codes P0449 and P0455 For the brake system Code P0559 Their diagnosis: ABS issue is result of Passenger side hub bearing requires rep Chevy Colorado P0449 2008 Chevrolet Colorado LT 6 cyl CEL is on and generated code P0449. obd-data. ☆[REGISTRY RECYCLER WINDOWS 8 DOWNLOAD]☆ Speed Up My 07 threw a code P0449 and had a burning smell. ★ ERROR CODE P0449 ★ Watch FREE Video Now! (Recommended. 2007 gmc envoy tire changing procedure gmc envoy evap emission code p0440 envoy trailblazer problem trouble p0449 envoy gmc gmc envoy yukon Some of the trouble codes associated with12/09/2015 · p0449 code p0453 code p0452 code went to autozone and i was told the check engine light is on because of these codes i have a 08 malibu lt 2. Play and Listen this is the quick and easy way to clear the p0449 and p0455 codes on a chevy silverado process is similar for all silverados link to ac delco solenoid ★★★ Error Code P0449 ★★ Fix, Clean, Repair # [ ERROR CODE P0449 ] & Improve Its Performance! SPEED Up Your PC - Free Scan Now! (Recommended). It says it has something to do with the EVAP (Evaporative Emission System). This trouble code is a reference number that is given to you when you plug Possible Causes and Repair Information for P0449 Chevrolet code. You might want to check with your local dealer. The most likely cause for these two codes is that the emissions control evaporative canister vent solenoid needs to be replaced. This is a very easy solenoid to replace, The only issue that this code condition has is if there is a difficulty in in refueling the vehicle fuel tank. P0449 and the other one which relates. htmlP0449 Gmc Description The Engine Control Module ( ECM ) monitors the Evaporative Emission System ( EVAP ) Vent Valve/Solenoid system wiring for opens or shorts. - Comodo PC Tuneup Blue Screen Windows Update Error 6 Error Code ★★ Error Code P0449 ★★ Fix, Clean [ ERROR CODE P0449 ] And Optimize PC! SPEED Up Your PC FREE Scan Now! (Recommended). 3, longtube headers, airiad, and custom tuned, never thrown a code before until last week, this is unrelated to my headers I am sure General Description: P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit Detailed Description: The Powertrain Control Module (PCM) controls the EVAP vent valve by grounding the control circuit using an internal switch called a "driver". Discussion in 'P - Powetrain Codes' started by fault code, Jan 15, 2018. P0449 Code Technical Discussion and Customizing your H2. 3. ★★ Error Code P0449 ★★ Fix, Clean [ ERROR CODE P0449 ] And Optimize PC! SPEED Up Your PC FREE Scan Now! (Recommended). You may notice the slightest dip in fuel economy as well. P0449 Evaporative emission (EVAP) vent solenoid control circuit. chevy gmc 2wd truck transmission replacement - part i . What Does Code P0449 Mean? OBD II fault code P0449 is defined as “Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction”, and is set when the PCM (Powertrain Control Module) detects that a part of the EVAP (Evaporative Emission Control System) is not working within design parameters. I pulled over and connected my Bluetooth obdII scanner to the port and started up torque pro. Code P0449 Severity – Low Code P0449 does not pose any serious danger to the driver or the vehicle and there are no drivability issues that may occur. . This test should be done on the vehicle but I could not figure a way to o the test and position everything for a good picture. 5). This will not keep your car from starting. This 2006 Pontiac G6 came in with the SES light on and code P0449 stored. P0449 - OBD II Trouble Code Evaporative System Vent Valve/Solenoid Circuit Malfunction Our emissions expert has put together the following information about the P0449 fault code. All bodywork, accident damage, paint, dent/ding, total loss questions BELONG in r/Autobody 2004 Elantra. DTC P0449 Circuit Description A battery voltage is supplied to the evaporative emission (EVAP) canister vent solenoid valve. ☆[ERROR CODE P0449]☆ Speed Up Your PC in 3 Mins!. They replaced the vent valve part 19207763 and reset SES light. In this video I will show you how to test and repair this fault code with universal testing methods that can be applied to all cars and trucks. Hey guys, Had the check engine light come on in the suburban this afternoon. A common problem with these EVAP vent valves is a broken wire inside of the insulation! The wiring will look completely fine until you pull on the harness. 189. Unfortunately, there are some owner's who may not be capable of doing repairs themselves. 4 it only has 20kCome along with Eric O at the SMA shope as he diagnoses and repairs this GMC Sierra that came in with a check engine light on and a DTC P0449 . This is a very common problem with the newer GMT-800 series GM trucks! What happens is there is a EVAP canister vent solenoid that is used by the PCM (powertrain control module) for testing the integrity (for leaks) in the EVAP system. - Windows 10 1. What do I need to do to fix code P0449? Code: P0381 Trouble Code: P0449. I know the code is the evaporative emission vent valve solenoid malfunction. This 2006 GMC Yukon came in with the Service Engine Soon (SES) light on and a code P0449 stored in the PCM memory. Reason for P0449 and find the solution for the code P0449 , we'll give to how to fix P0449 trouble code problem. I was told to replace the solenoid vent canister. I hear it's fairly common problem on the G6. I have already replaced the purge solenoid and had the computer reset. I. Tahoe & Suburban. How do you fix p0449 code on a 2003 silverado 1500? The most probable cause is a vacuum leak or a bad fuel cap. The high resolution is one of the most important inputs by the PCM for fuel control and timing. Any possible solutions? Gas cap ok. DTC P0449: Evaporative Emission (EVAP) Vent Solenoid Control Circuit Battery voltage is supplied to the EVAP canister vent solenoid valve. g. Fuel vapors that form in the fuel tank are routed through the canister where the vapor is trapped in the charcoal and pressure is vented through the canister vent solenoid valve which is normally open. I did, reset the code and it popped right back up. Have an 08 Chevy Suburban with 115,000 miles. MIL Light comes on fairly quickly again after clearing. Check Solution For P0449 OBD Code : P0449 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution. 29/10/2017 · Reading code P0449, check engine light on, runs fine. I'm also getting a P0449 code. ★★★ Error Code P0449 just drove to blockbuster and back, and checked the vacuum (so it would be fully warmed up) 18" at idle, check at the vacuum distro by the drivers side firewall. Wrong valve Mark, I too have had this code. Learn what does P0449 Chevrolet means? P0449 Chevrolet Evaporative Emission Vent codes P0300 and P0449 03 chevy venture 2003 chevy venture. P0449 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. 09 silverado, flexfuel 5. P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. The EVAP system is covered for extended miles in many states since it is an emission requirement and some states took it a bit further than the feds and required a longer warranty on emission items. 3 and I have the codes p0449,p0455. So my check engine light came on today and it was throwing code P0449. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM). CONDITIONS FOR SETTING THE DTC The control module detects that the commanded state of the driver and the actual state of the control circuit do not match, for a minimum of 12 seconds . History follows: 05/24/05 - Performed a Service Engine Scan. P0449 engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. Well because of this My remote start will not work so after doing all the research I could I found all the info I needed and a good video. P0449 OBD-II Trouble Code: Evaporative Emission Control System www. 09/08/2016 · Hey All I have an 09 Traverse LS showing the P0449 code. I was throwing the po449 code. 2007 gmc envoy tire changing procedure gmc envoy evap emission code p0440 envoy trailblazer problem trouble p0449 envoy gmc gmc envoy yukon Some of the trouble codes associated with 1. Ep. Wish someone would do a video how to on this. Help with p0449 & p0455 codes (1 2 3 Last Page) hfdff. In 08/2010 They tested the pressure system and they found an internal short in the vent valve. FIXD explains symptoms, causes, and severity of P0449. P0455 was pending. Meaning of P0449 engine trouble code is a kind of powertrain trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction As this is part of the emissions system there is a very good possibility that this is covered by the factory warranty. yourmechanic. The solenoid being in the engine compartment and the canister vent valve being located on the driver side of the fuel tank. Code P0449 came on. Also, whenever I remove the gas cap to fill up, I have trouble starting afterwards. P0449 - Evaporatve Emission Control System -Vent ★★★ Error Code P0449 ★★ Fix, Clean, Repair # [ ERROR CODE P0449 ] & Improve Its Performance! SPEED Up Your PC - Free Scan Now! (Recommended). Use it here. I did some research on the forum and found that this was effecting many of us. got a P0449 code come up so I replaced the vent solenoid that is by the engine and that did not solve it so I then replaced the Vapor canister solenoid. P0449 Code Description: Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. I have a 2008 Outlook and I’m getting codes P0449 and P0449P. I have a 1999 Pontiac Grand Prix. P0449 Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This is the 2003 Chevy Astrovan Code P0449 And P0455 – Youtube of a image I get directly from the 2000 Chevy Astro Van Vacuum Diagram package. gmc chevy truck -dtc p0449 evap vent solenoid control circuit - duration 18 48. The DTC P0449 is: EVAP Emission Control System Vent Vlv/Sol Malf Straight out of my code book. ★★★ Error Code P0449 ★★ Fix, Clean, Repair # [ ERROR CODE P0449 ] & Improve Its Performance! SPEED Up Your PC - Free Scan Now! (Recommended). p0449 codeJun 1, 2018 Code P0449: Evaporative System (EVAP) Vent Control Circuit Malfunction. Inspectall the vacuum hoses for damage and buy a new fuel cap, making sureit is tightly …P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction Indicator. PO449 and PO455. to explain my situation, we have had alot of rain here lately, and my wife has My 08 Lucerne CXS has the P0449 Evap Vent Valve/Solenoid Circuit code. 3 Flex) threw the P0449 code a few weeks ago. caused by something as simple as a loose gas cap. Any ideas where to start looking? He had the standard gas cap code as well, but purchased a new cap and that went away. Considering the age of out SSRs it's recommended to replace the canister and valve as a unit. My wife’s 2008 Yukon (5. got this code p0449 evap vent valve. Need help trying to solve my 09 Vue with p0449 code. You may also want to check your gas cap to make sure09/05/2010 · I reset the code it stayed off for few miles ,but then re-appeared , can the evap valve be coaxed into a non shot state or does it need to be replaced ?15/03/2014 · The "Check Engine" light in my 2008 Acadia recently came on. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Hope this helps you out. ★★★ Error Code P0449 I had the check engine light come on on my 2003 H3. The Check Engine light comes on and stays on. You can save this image file to your own pc. This page contains information about ICD-10 code: P0449. Well because of this My remote start will not work so after doing all the research I could I found all the info I …P0449 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. Q: I am getting two codes: P0449 & P0455. so i have the p0449 code. Wife's 2012 equinox 2. Probable Causes 1- Purge or vent solenoids defective 2- Loose EVAP system connectors and/or wiring 3- Failed EVAP vent solenoid 4- Failed Gas Cap If you have replaced the gas cap once and P0449 came back this means there is an issue with the EVAP canister vent valve located near the EVAP l have a 2007 Chevy Silverado that won't start sometimes, but only when it's humid or raining. Discussion in 'General Chevy & GM Tech Questions' started by Enkeiavalanche, Jan 2, 2013. ★★★ Error Code P0449 Have a 08 Sierra 5. When I clear the code, it comes right back on. My problem started over a month ago, I was driving up a hill and the van shut off as if i turned the key off, once I pulled over it started right back up. Car has the Northstar with just over 170K miles. The code repeated a few miles later. The powertrain control module (PCM) controls the EVAP vent valve by grounding the control circuit via an internal switch called a driver. Here is a description and how to diagnose EVAP code P0449 Quickest And Easiest Test For EVAP System Leak Codes P0442, P0455, P0440 On A Basic GM EVAP System. P0449 - GM; Type: Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled: Description: EVAP Vent Solenoid Control Circuit Conditions. skip navigation . 3 and I have the codes p0449,p0455. 6v for at least 10-seconds. There is a service bulletin for the code p0449 setting on your 2007 Chevrolet Silverado 1500. Inspectall the vacuum hoses for damage and buy a new fuel cap, making sureit is tightly on the vehicle. other reasons could be leak in the evap lines (unlikely because this throws a p0442 code) or the gas cap (which you can look at and see if there are any cracks in the seal). P0449 - GM; Type: Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled: Description: EVAP Vent Solenoid Control Circuit Conditions. Code received is PO449 Purge valve replaced November 2014 Throttle Body replaced January 2015 Any suggestions? Q: I am getting two codes: P0449 & P0455. Video the quick easy fix p0449 p0455 evap codes on chevy silverado 2007. engine-codes. this video will show you how to fix p0449 emissions dtc on gm vechicles, like tahoe, suburban, yukon, avalanche, silverado, escalade, express. Verify that both the ON and the …EVAP vent solenoid was told there is one in the front by engine and one near the gas tank. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed. Under precise operating conditions Here is a description and how to diagnose EVAP code P0449. I have a code reader and the fault is P0449, which is EVAP emission control system vent vlv/sol Malfunction . com/fr/p0449. Should I replace both or does one go out more often thenDiagnose and fix code P0449 Equinox If you discover a P0449 Equinox issue, here’s how to proceed. If the light doesn't come back on, then it's fine. 14/03/2013 · Here is a description and how to diagnose EVAP code P0449. I tried reseating the gas cap to no avail. I have a 2007 Acadia SLE w/ AWD and 133k miles. Come along with Eric O at the SMA shope as he diagnoses and repairs this GMC Sierra that came in with a check engine light on and a DTC P0449 . I got a jump and it started but stalled. How to fix code P0449 on my 2006 Chevy Silverado? The check engine light is on. Les spécialistes de la traduction des termes techniques , aidez moi. Error Code p0449 is P0449 Gmc Description The Engine Control Module monitors the Evaporative Emission System Vent Valve/Solenoid system wiring for opens or shorts. The number is #09-06-04-028. The Check Engine Light is on and the code is p0449. Code: P0381 Trouble Code: P0449. Shops report problems with P0440, P0441, P0442, P0446 EVAP codes on GM vehicles. - Registry Sweeper Fix Error Code Windows Explorer Error 80004005 The 0449 code is for the vent solenoid, located at the evap canister by the fuel tank. A P0449 Hyundai Sonata trouble code sets if the fuel tank pressure sensor reports a reading below 30-hPa (fuel tank pressure too low) or a fuel tank pressure sensor voltage less than 1. The code came up P0449. This means that regardless of which make or model of vehicle, the code will mean the same thing (Grand Prix or not, as long as it was manufactured after 1996). 30/01/2015 · I'll show how to replace the defective Vapor Canister Vent Solenoid, which is causing the engine light on my dash to come on. There's nothing critical here. 10/07/2017 · Hi there guys. - PC Health What’s mean? OBD2 Code P0449 Definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. Will eventually start and run fine. Play and Listen ill show how to replace the defective vapor canister vent solenoid which is causing the engine light on my dash to come on Code P0449 Vent Solenoid On 2006 Chevy Silverado. If you have an automatic transmission, you will need to remove the right muffler to get to it. Listen for a click when the valve operates. P0449 Diagnostic Trouble Code Discussion for October 2007 EVAP Vent Solenoid Control Circuit Malfunction * Note: This is a professional automotive technician's resource. 2007 gmc envoy tire changing procedure gmc envoy evap emission code p0440 envoy trailblazer problem trouble p0449 envoy gmc gmc envoy yukon Some of the trouble codes associated with You should never start with just replacing components. well had it coded and its a P0449 code, and it says its the Purge or vent solenoids or failed the EVAP vent solenoid. Ok, check engine light on AGAIN, making me really mad. and i have no problems filling my gas tank up. A 'billable code' is detailed enough to be used to specify a medical diagnosis. P0449 is a circuit fault with the vent solenoid, not the purge solenoid. 05/02/2010 · P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction This code can be caused by a loose or faulty gas cap. Does anyone know if it is the vent solenoid or some other part in the system?? Wish someone would do a video how to on this. Delta-Dawn. Hi there guys. - Registry Sweeper Fix Error Code Windows Explorer Error 80004005 Trouble OBD II code P0449 refers your Chevy Silverado’s evaporative emission. The vent solenoid is by the charcoal canister at the gas tank . 437,407. If it's got wheels, treads, floats, flies, or has an engine your good to go. Hello fellow, My 2005 malibu recently thrown out some codes to me: p0442- evap system small leak, p0449- vent valve/solenoid circuit, P0463- fuel level sensor A circuit high, OK, went to co-workers with a 2010 Impala LT and swapped his vent and purge valves to the 2008 to remove any doubt and still have the same issue erase codes, says 0 codes found after erasing, read again same P0449 code found. That could be caused by a stuck open purge valve, a sticking closed There's nothing critical here. Looks like it likely has to do with the evap vent valve. March 17th, 2016 11:03 AM by nickn. Detailed information on error code - P0449 - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction. My check engine light is on, so I do a diag test on it and it tells me it's a P0449 issue with the EVAP emissions I have no idea what to look for to fix this. DTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit