Code p0449 chevy colorado

If you "Search "P0449" here, or over at 355nation.net, you will find at least a weeks worth of reading. This is a common problem. Here are a couple of links to replacing the Canister Vent Solenoid Valve: How to: Replace your Evap Canister/Solenoid (P0455 code) - Chevrolet Colorado & GMC Canyon Forum.

Hope it helps.. Best of Luck.. 2006 Chevrolet Colorado LT 2.8L, Vin 8, Eng Cfg L4 Customer Concern: Current Powertrain Control Module (PCM) code P0449. Tests/Procedures: 1. Inspect the evaporative vent solenoid, near the fuel tank and evaporative canister. Look for wire damage, corrosion. 2.P0449 Code: Meaning, Causes, and Symptoms | OBD2 Codes. P0449 – Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction . P0449: DIY Repairing Video Tutorial2004-2012 Chevrolet Colorado Forum / GMC Canyon. Engines/Performance/Tech Questions. I4/I5 Engine & DrivetrainTahoe & Suburban - Check engine light code P0449 - check engine light ison,autozone says code is P0449 this is whattheir ticket says: The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system. Definition: EVAP (Evaporative Emission...i have a code reader it says p0449 emission control system vent Vlv/solmalf ... p0449; chevrolet; colorado; 0 votes. 1 answer 2.6k views. 2007 Chevy Avalanche with code P0449, where is it and where can I find a picture of it? asked Jun 30, 2017 by anonymous. chevrolet; avalanche; p0449 +1 vote.24 Okt 2007 ... However that code is for an electrical issue in the vent control valve itself so technically it doesn't care if the evap system is leaking it ...

Jun 12, 2013 · P0171: From the Service Manual. Vacuum hoses-split, kinked, improper connections. Insufficient fuel in tank. Low fuel pressure. Fuel contamination. Malfunctioning furl injectors. Missing, restricted, or leaking exhaust components. Vacuum leaks at the intake manifold, throttle body, or injector o-rings. Leaks in the air induction system and ... 1st Gen Engine Talk - I4, I5, and V8. I had a SES light stay on and scanned it and got the dreaded P0449 Evap code. I did a little home work and decided to change the vent valve solenoid. I searched around and found one at a reasonable price on E Bay. It also came with the needed harness adapter.Jul 26, 2023 · 1st Gen Engine Talk - I4, I5, and V8. I had a SES light stay on and scanned it and got the dreaded P0449 Evap code. I did a little home work and decided to change the vent valve solenoid. I searched around and found one at a reasonable price on E Bay. It also came with the needed harness adapter. To diagnose the P018C Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.A prevalent issue with the Chevy Colorado is the P0446 code. This code corresponds to a specific number obtained when connecting your Colorado to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446...4 Causes and Fixes P0449 Code Chevy Silverado or Sierra. Gas Cap ; If the gas cap is not seated all the way in place, it will cause an issue. The gas cap may also have gone bad and is not sealing well and might need to be replaced. Also, check for any dirt or grime that may be causing the cap to not make a good seal.Nov 26, 2012 · 3010 posts · Joined 2010. #13 · Dec 1, 2012. I did, I had a large leak, haha. P0442 is a small leak. I also had a 449 code and I don't have that one anymore. It's stock.. looking. kerad11;2044633 said: I also fuck watermelons for extra heart health points. Oct 8, 2016 · 2006 Chevrolet Colorado LT 2.8L, Vin 8, Eng Cfg L4 Customer Concern: Current Powertrain Control Module (PCM) code P0449. Tests/Procedures: 1. Inspect the evaporative vent solenoid, near the fuel tank and evaporative canister.

P0171: From the Service Manual. Vacuum hoses-split, kinked, improper connections. Insufficient fuel in tank. Low fuel pressure. Fuel contamination. Malfunctioning furl injectors. Missing, restricted, or leaking exhaust components. Vacuum leaks at the intake manifold, throttle body, or injector o-rings. Leaks in the air induction system and ...Hello guys, My name is Steven, I do DIY projects and repairs on my cars, I’m not a certified mechanic and this video is for entertainment purposes only. If ...2009 LT P0302 & P0449 with 130,000 miles. My wife was driving home from work last night and noticed her check engine light started flashing. She was not far from home and called me so I told her to park it. I checked for codes and pulled up P0302, cylinder 2 misfire & P0449.How Much Does It Cost to Fix Code P0449? If you take your car to a shop for diagnosis, most shops will start with an hour of “diag time” (the time spent in labor diagnosing your specific issue). Depending on the shop’s labor rate, this typically costs somewhere between $75-$150.How Much Does It Cost to Fix Code P0446? If you take your car to a shop for diagnosis, most shops will start with an hour of “diag time” (the time spent in labor diagnosing your specific issue). Depending on the shop’s labor rate, this typically costs somewhere between $75-$150.

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Code P0455 may appear on some Chevy vehicles. On a 2010 Chevrolet Silverado 1500 LS 5.3L V8, for example, this DTC is set when “the EVAP system is not able to achieve or maintain a calibrated level of vacuum within a set amount of time.” The code appears in a 2010 Chevrolet Silverado 1500 5.3L V8 because of the following conditions:If I clear the code it will disappear until I drive it for about 5-10 minutes then immediately come back on. Chevy Mechanic: Pete. There is a bulletin out on this code for this model here.To install an evap vent valve kit.This moves the air inlet to a better location to prevent dirt/dist being sucked into the valve which then plugs the canister ...This is a common issue that stumps a lot of people - the dreaded Chevy P0446 code. This code causes folks to think new charcoal canisters, vent valve solenoi...4 Causes and Fixes P0449 Code Chevy Silverado or Sierra. Gas Cap ; If the gas cap is not seated all the way in place, it will cause an issue. The gas cap may also have gone bad and is not sealing well and might need to be replaced. Also, check for any dirt or grime that may be causing the cap to not make a good seal.Mar 5, 2005 · I have a 2007 chevy colorado ls with a 2.9l engine. The engine light is on and it shows a current code of P0449 and a history code of PO455. the engine seems to be running fine and having no [problems … read more

Dec 27, 2013 · 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 kit... Hello, I have an 2006 3.5 L5 Chevy Colorado and I am having an issue occasionally with reduced or miss running at cruise speed. I have the same code of PO449. I have the same code of PO449. I have read all of the post but can't find any hard answer as to the problem.P0449 stands for "Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction". ... Body(B) Codes; Chassis(C) Codes; Network(U) Codes; About; P0449 Code: Meaning, Causes, and Symptoms | OBD2 Codes. P0449 – Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction . P0449: DIY …This video is about how to fix the check engine light code P0499 that comes on because of the Evap canister. I use Dorman Part 911-239 in this video. Purchas...Chevy Corvette P0449 OBDII Code Symptoms. The service engine soon light is often the only sign that the P0449 code has been triggered. ... P0449 Chevy Colorado. P0449 Chevy Cruze. Jason on Mazda 6 P0320: Meaning, Causes, & Diagnosis. That is RIDICULOUS, Cheryl.Description 📷. Add Comment. What does this mean? What are the Possible Causes of the DTC P0449 Chevrolet? NOTE: The causes shown may not be a …This page is meant to help you troubleshoot the Chevy Colorado P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. …Contacts: GM recall number: N202313200. Chevrolet Customer Service: 1-800-222-1020. GMC Customer Service: 1-800-462-8782. NHTSA Toll Free: 1-888-327-4236. NHTSA (TTY): 1-800-424-9153. Subscribe to ...This video is about how to fix the check engine light code P0499 that comes on because of the Evap canister. I use Dorman Part 911-239 in this video. Purchas...Aug 13, 2009 · Stacy D. 1 post · Joined 2020. #8 · Aug 23, 2020. im currently having the same issue with my 2008 malibu 3.6L vvt engine!!!! im getting the codes P0010, P0365, P0366, P0014, P0024 & P0346! & they all have something to do with my camshaft position actuator/sensors... I am going to replace my VVT solenoid, for sure though!! In bank 1, thats ... DTC P0455 is frequently caused by the Canister Vent Solenoid stuck in the open position. When the ECM does a test of the EVAP System, it closes the Vent Solenoid and opens the Purge Solenoid. It then measures the vacuum pulled. If the Vent Solenoid is stuck open, the ECM will sense lack of vacuum and set P0455. Reply.

2014 chevy Malibu 2.5l. p0449 code. commanded vent valve on with scanner and could not hear it click. removed fuel tank tested vent valve and had 20ohms through it. specs are between 10 and 30ohms. tested the wires in the harness that come down with the tank. and had 0 ohms through that harness. tested for power at the vent …

What Does Code P0446 Mean? P0446 definition: Evaporative Emission Control System Vent Control Circuit Malfunction. Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed withing the next month to prevent issues related to the emissions system including failed inspections.What Does The Chevy Colorado P0449 Code Mean? A Chevy Colorado's P0449 code signals a malfunction in the evaporative emission control system's vent valve/solenoid circuit. The evaporative emission control system (EVAP) is a device that prevents fuel vapors from escaping into the atmosphere.Aug 25, 2017 · My 2007 Colorado was throwing codes P0455 which is a leak in emissions and a P0449 which is a problem with the vent valve selenoid so I replaced it. It's a g... Nov 23, 2019 · Cars & Trucks. Chevrolet. Colorado. 2006 Chevrolet Colorado Crew. Codes c 0040 c0899... Share on Facebook. Share on Twitter. Share on Pinterest. Share by Email. I have a 2007 chevy colorado ls with a 2.9l engine. The engine light is on and it shows a current code of P0449 and a history code of PO455. the engine seems to be running fine and having no [problems … read more11 Feb 2010 ... If the wiring looks okay, replace the solenoid valve. The vent solenoid (4) is located at the charcoal canister by the fuel tank. graphic.Sep 6, 2023 · EVAP Failure Symptoms. Engine code P0449, P0440, P0441, P0446. Poor idling. Out of spec air-to-fuel ratios. Difficulty starting the engine, in some cases. If you have a small leak, you might not notice any symptoms. While the issue can cause some performance issues from AFR’s, it is usually not serious enough to cause major engine damage. DTCs P0443 and P0449 run continuously when the above conditions are met. Conditions for Setting the DTC The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for a minimum of 5 s. Action Taken When the DTC Sets DTCs P0443 and P0449 are Type B DTCs. Conditions for Clearing the …

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Nov 28, 2012 · so recently the engine light came code p0449 on my 2006 z71 3.5. So i did some research and found out it was. ... 06 Chevy Colorado Z71 4x4, plasti-dipped black all ... DTC P0455 is frequently caused by the Canister Vent Solenoid stuck in the open position. When the ECM does a test of the EVAP System, it closes the Vent Solenoid and opens the Purge Solenoid. It then measures the vacuum pulled. If the Vent Solenoid is stuck open, the ECM will sense lack of vacuum and set P0455. Reply.P0449 code won't go away. Have a 08 Sierra 5.3, longtube headers, airiad, and custom tuned, never thrown a code before until last week, this is unrelated to my headers I am sure becasue they have been on for months now and never had a issue.. Anyways, plug a scanner into the truck and p0449 code (evap code) pops up, so I clear it, and instantly ...C. Crisco86 Discussion starter · Nov 6, 2013. Have had the P0449 and P0455 code for a while now and finally going to fix this tomorrow. But now its throwing a P0300 at me. I did notice in the last two weeks that the idle was getting rough and has progressively gotten worse. Now it runs rough most of the time at all driving speeds.I found a six DTCs in the Service Manual related to the EVAP System. P0442: Evaporative Emission (EVAP) System, small leak detected. P0443: Evaporative Emission (EVAP) System, Purge Solenoid Control Circuit. P0446: Evaporative Emission (EVAP) System, vent system performance. P0449: Evaporative Emission (EVAP) System, Vent Solenoid Control Circuit.Cars & Trucks. Chevrolet. Colorado. 2006 Chevrolet Colorado Crew. Codes c 0040 c0899... Share on Facebook. Share on Twitter. Share on Pinterest. Share by Email.In any case, if you already see the code in your vehicle, there is also a way out. What Causes Code P0454? The causes of code P0454 in GMC Sierra are pretty similar to P0454 in KIA and other vehicles. Some of the common causes of the trouble code in a car include the following: Improper installation of the gas cap. Defective gas cap.Discussion Starter · Apr 6, 2009. fault code p0449. Already replaced the vent solenoid, verified the solenoid does indeed work, have power at the solenoid but the ground never closes.I HAVE A P0449 TROUBLE CODE ON MY CHEVY IMPALA 2007. P0449 EVERTI,E I RESET IT ITS COMES RIGHT BACK ON IMMEDIATLEY. GAS - Answered by a verified Chevy Mechanic. ... P0449code. 2005 3.5 chevy colorado code p0449. Evap system. p0449code JA: What is the model/year of your Chevy? ….

Mar 2, 2022 · In any case, if you already see the code in your vehicle, there is also a way out. What Causes Code P0454? The causes of code P0454 in GMC Sierra are pretty similar to P0454 in KIA and other vehicles. Some of the common causes of the trouble code in a car include the following: Improper installation of the gas cap. Defective gas cap. DTC P0455 is frequently caused by the Canister Vent Solenoid stuck in the open position. When the ECM does a test of the EVAP System, it closes the Vent Solenoid and opens the Purge Solenoid. It then measures the vacuum pulled. If the Vent Solenoid is stuck open, the ECM will sense lack of vacuum and set P0455. Reply.My 2006 Tahoe 4.8L show DTC code P0449 for Emission Evaporation System Vent Valve. I have been having a random misfire as well. Idle is fine but the misfire tends to happen when accelerating. ... p0449; chevrolet; colorado; 0 votes. 1 answer 1.0k views. Reynaldo P0300 Random misifre P0446 2003 GMC Yukon. asked Jun 26, 2018 …What Does the P0449 Code Mean? This trouble code indicates that the evaporative control (EVAP) system vent valve solenoid isn’t working as it should. Sometimes the problem is the vent itself, but it can also be caused by electrical resistance or another mechanical malfunction.Jan 15, 2012 · "PIP4361B: Intermittent SES Light due to DTCs P013B and or P0411 DTC - Reprogram ECM - keywords calibration cold controls engine engineering investigation lamp light program recalibrate reflash ses start - (Jun 12, 2008) Subject: Intermittent SES Light due to DTCs P013B and/or P0411 DTC Models: 2008 Chevrolet Colorado 2008 GMC Canyon 2008 ... P0449. Chevy Colorado, 2005 about 92,000 miles Generating code: P0449. Code indicates evaporative control (EVAP) system vent valve solenoid is malfunctioning. Yeah, I have overfilled the tank a few times.P0449 Code: Meaning, Causes, and Symptoms | OBD2 Codes. P0449 – Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction . P0449: DIY Repairing Video TutorialJoin us as we define the code in its totality, discuss its severity and implications, and provide insight regarding how your mechanic will diagnose and fix the code. Car Values Price New/UsedJan 1, 2020 · A prevalent issue with the Chevy Colorado is the P0446 code. This code corresponds to a specific number obtained when connecting your Colorado to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446... This code references a number that is given to you when you plug it into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very often P0455. P0449 is normally not an immediate threat to the drive-ability of your Blazer. Code p0449 chevy colorado, Chevrolet Silverado 1500 (New Model) 2019 2019 Equipped with 5.3L L82, 5.3L L84, 6.2L L87, 4.3L LV3, 2.7L L3B, or 3.0L LM2 Silverado 1500 2020 2021 Suburban 2021 2021 3.0L LM2 Tahoe 2021 2021 3.0L LM2 GMC Sierra 1500 (New Model) 2019 2019 Equipped with 5.3L L82, 5.3L L84, 6.2L L87, 4.3L LV3, 2.7L L3B, or 3.0L LM2 Sierra 1500 2020 2021 Yukon ..., What Does the P0449 Code Mean? This trouble code indicates that the evaporative control (EVAP) system vent valve solenoid isn’t working as it should. Sometimes the problem is the vent itself, but it can also be caused by electrical resistance or another mechanical malfunction., 2008 Chevrolet Colorado LT 6 cyl CEL is on and generated code P0449. ... Chevy Colorado P0449. Thread starter infj23; Start date Mar 5, 2011; I. infj23 Hero Member. Joined Dec 22, 2006 Messages 286 Points 18 Age 123 Location North Carolina. Mar 5, 2011 #1 2008 Chevrolet Colorado LT 6 cyl, To diagnose the P0449 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., Troubleshooting P0449 error on 2007 Chevy Colorado, 5.26.2018Video documenting the troubleshooting and repair process of a vapor canister vent valve solenoid..., Order Chevrolet Colorado Canister Vent Valve Solenoid online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic ..., C6 CORVETTE HOW TO REPLACE EVAP VENT SOLENOID AND ERASE P0449 CODE - YouTube. Read full answer. Sep 04, 2021 • Chevrolet Cars & Trucks. 0 helpful. 1 answer. Where is my valve solenoid on a 2005 chevy colorado. ... We have a 2007 Chevy Colorado and we have codes P0443, P0455, P0446, and P0128. We are thinking about …, RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog., P0449 code causing your check engine light to come on? This video will show you how to diagnose and troubleshoot the P0449 Code to make sure you replace the ..., Jun 27, 2022 · To diagnose the P0449 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour. , I'll show how to replace the defective Vapor Canister Vent Solenoid, which is causing the engine light on my dash to come on. The part number used for my Sil..., Nov 14, 2013 · 2008 Chevy Colorado 2.9 44K mileage: Trouble code P0449, erase memory but code remains continuosly; Question does this vehicle have a on-off EVAP vent solenoid or a pulse width modulated EVAP vent sol … read more , Chevy S10 P0449 Definition. P0449 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing (S10 or not, as long as it was manufactured after 1996). P0449 indicates that the valve or solenoid circuit that controls the evaporation system is not functioning properly., In any case, if you already see the code in your vehicle, there is also a way out. What Causes Code P0454? The causes of code P0454 in GMC Sierra are pretty similar to P0454 in KIA and other vehicles. Some of the common causes of the trouble code in a car include the following: Improper installation of the gas cap. Defective gas cap., 2008 Chevy Colorado 2.9 44K mileage: Trouble code P0449, erase memory but code remains continuosly; Question does this vehicle have a on-off EVAP vent solenoid or a pulse width modulated EVAP vent solenoid?, Code P0455 may appear on some Chevy vehicles. On a 2010 Chevrolet Silverado 1500 LS 5.3L V8, for example, this DTC is set when “the EVAP system is not able to achieve or maintain a calibrated level of vacuum within a set amount of time.” The code appears in a 2010 Chevrolet Silverado 1500 5.3L V8 because of the following conditions:, P0449 - OBD-Codes.com. www.obd- Detailed information on diagnosing and repairing a P0449 DTC code which refers ...P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit ... OBD-IITrouble Code Technical Description ... 2004 Chevrolet Tahoe 4.8L p0449., Hi Folks. So here's the background... I have an 04 Crew cab with the I5. My CEL light is on and I get the P0446 code (Evaporative Emission System Vent Control Circuit). This happened two years ago and I replaced the Vapor Canister Vent Solenoid and it fixed the problem. It lasted about a year and now the same code came back and it's E-Test time., Getting trouble codes P0449, P0014, P2135, P2138, P0641 also. satisfied customers. …. Vocational, Technical or Tra... satisfied customers. Chevrolet Silverado 1500 WT: I am getting a P0449 code, took. chevy suburban Z71: I have an 06 suburban 1500 Z71 -V8 5.3L. …., In conclusion, the P0442 code in a Chevy Silverado indicates a problem with the evaporative emission control system (EVAP). It is designed to capture and store fuel vapors from the fuel tank. It further prevents them from escaping into the atmosphere. A P0442 code is typically caused by a leak in the system., The p0449 code in your Chevy Colorado might sound like a secret mission, but don't fret! It simply indicates a problem with the evaporative emission control system. While it may not be the most exciting thing to deal with, fixing it will keep your …, This code may be seen with other EVAP system codes. What the P0449 code means. The P0449 DTC means that the evaporative emission control system vent valve or solenoid has a malfunction. The ECU detects this fault and causes the Check Engine Light to be illuminated on the dashboard. What causes the P0449 code? Short or open in the wiring harness , Tahoe & Suburban - Check engine light code P0449 - check engine light ison,autozone says code is P0449 this is whattheir ticket says: The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system., In any case, if you already see the code in your vehicle, there is also a way out. What Causes Code P0454? The causes of code P0454 in GMC Sierra are pretty similar to P0454 in KIA and other vehicles. Some of the common causes of the trouble code in a car include the following: Improper installation of the gas cap. Defective gas cap., ran into this about 2 weeks ago - bought part number 25932569 - (evap canister) for 50 bucks from the dealership. (apparently the part for our trucks is alot more - around the 150 dollar mark, all we need to do with our trucks is reuse the hose to make the cheap part work.), 5043 posts · Joined 2010. #4 · Jun 12, 2013 (Edited) P0171: From the Service Manual. Vacuum hoses-split, kinked, improper connections. Insufficient fuel in tank. Low fuel pressure. Fuel contamination. Malfunctioning furl injectors., I have a 2007 chevy colorado ls with a 2.9l engine. The engine light is on and it shows a current code of P0449 and a history code of PO455. the engine seems to be running fine and having no [problems … read more, 2004 chevy colorado code p0449 system vent control circuit low how do i fix this problem. gas tank evap vent valve, extremely common Read full answer. Dec 15, 2011 • 2004 Chevrolet Colorado. 0 helpful. 1 answer. 2008 Envoy with P0449 code. I'm sure the question is WHERE is the valve located, This page is meant to help you troubleshoot the Chevy Colorado P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table, 2008 Chevy Equinox Code P0449 Hi. I had a code P0449 for my 2008 chevy equinox. I replaced the vent valve solenoid near the charcoal canister close to the gas tank. But still the check engine light still on. I checked the voltage of the 2 wires and result was 0 (zero) voltage. I checked the fuses and nothing happens. Please an..., P0449 Code: Evaporative Emission System Vent Control Circuit Intermittent - In The Garage with CarParts.com. Find out what OBD-II code P0449 means, what triggers it, and the common symptoms …, 2006 Chevrolet Colorado LT 2.8L, Vin 8, Eng Cfg L4 Customer Concern: Current Powertrain Control Module (PCM) code P0449. Tests/Procedures: 1. Inspect the evaporative vent solenoid, near the fuel tank and evaporative canister., 2008 Chevy Colorado: dtc evaporative emission control code..comes back. I have a 2008 Chevy Colorado p/u. I am getting a dtc evaporative emission control code of P0449. ... I have a code P0449 EVAP Emmision Control System Vent Viv/Malf. Is it the gas cap? beacuse i've changed the cap with a new one(I got it from the dealership) ...