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Obd code po449 what is this ? - 2006 Pontiac Torrent

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P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuitf. Hope it can help you!
________
gm tech ii

Posted on Jan 23, 2013

  • ibean Jan 24, 2013

    guess i need replace a sensor they say i have 2 which is the po449 the up stream or the down stream ??

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What makes my Chevy malibu 2005 v6 put system code po449 out


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. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
  • OBD II P0449
Fault Code Definition
  • Evaporative System Vent Control Circuit Malfunction
What does this mean? The evaporative control (EVAP) system captures any raw fuel evaporating from the fuel storage system (e.g. the fuel tank, filler neck, and fuel cap). Under precise operating conditions-dictated by engine temperature, speed, and load-the EVAP system stores and purges these captured fuel vapors back into the combustion process. The carbon canister, which stores the raw fuel vapors, utilizes a vent valve that allows fresh air to enter the EVAP system. This displaces the fuel vapor as it's purged into the combustion process. Code P0449 indicates that the evaporative control (EVAP) system vent valve solenoid is malfunctioning. This can be caused by either too little or too much electrical resistance or a mechanical problem with the vent valve itself. Symptoms
  • Check Engine Light will illuminate
  • In most cases, there are no adverse conditions noticed by the driver
  • In some cases, there may be a noticeable fuel odor caused by the release of fuel vapors
Common Problems That Trigger the P0449 Code
  • Missing fuel cap
  • Defective Evaporative Vent Valve
  • Defective or damaged fuel cap
  • Distorted, damaged or cracked Fuel Tank Filler Neck
  • Torn or punctured Evaporative system hose(s)
  • Defective Fuel Tank Sending Unit gasket or seal
  • Split or damaged Carbon Canister
  • Defective or damaged fuel tank
Common Misdiagnoses
  • Fuel cap
  • Evaporative Purge Valve
  • Evaporative Vent Valve
Polluting Gases Expelled
  • HCs (Hydrocarbons): Unburned droplets of raw fuel that smell, affect breathing, and contribute to smog

P0449 OBD II Trouble Code

Jan 30, 2017 | Cars & Trucks

2 Answers

I have a code PO449, and it says evaporator sensor. What am I looking for?


Please go here on pc, it will tell you in detail whats possibly wrong. obd-codes.com/po449, God-Bless!

Dec 29, 2015 | 2008 Chevrolet Chevrolet Cobalt LT

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Why does the gas pump cut off every 1/2 to 1 gallon on my 2003 Hyundai Accent, at slow pump even when the tank is nearly empty. It doesn't matter what station I go to.


Failure in the Evap System

Check for Evap Codes & diagnose that system

Most likely a failed evap vent solenoid

Google : OBD PO446 thru PO449 & read up

Jul 24, 2014 | Hyundai Accent Cars & Trucks

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The gas tank fills slowly and turns off the pump


some cars do not allow refilling the gas tank too rapidly. If slightly turning the handle of the pump filler when pumping doesn't help, maybe there's another problem. Has this always been the case, or has this issue just started recently?

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P00449 2006 MALIBU


Of coarse the light is on

You have not checked for codes & diagnosed
anything or made a repair yet

PO449--Evap System Vent Valve Solenoid
Circuit Malfunction

When you get any OBD Fault lights & codes-- you get on it
within a day or two or some day will do some serious
damage-- depending on the area or system effected

Dec 17, 2012 | 2004 Chevrolet Malibu

1 Answer

What does code po449 mean


PO449---Evap System Vent Valve/Solenoid Malfunction

You can also Google any OBD2 Vehicle Codes-- to get
all sorts of info on any problem

Nov 25, 2012 | 2006 Pontiac G6

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Engine code po449


engine lights came on and the codes are po449 and po449p on a 2007 chevy avalanche

Jun 30, 2012 | 2007 GMC Yukon

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Po449 0n 2006 chevy cobalt


P0449 control vent valve/solenoid circuit malfunction, This code necessarilly deal with replacing the vent solenoid it about the circuit,the evap vent solenoid circuit may have rub through on the frame (located on the back of the fuel tank),it can also be the connector,the vent solenoid itself,or the connector

Mar 24, 2012 | 2005 Chevrolet Silverado

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2005 chevy Z71 check engine code PO449 and PO455 5.3 Lt engine how do i fix them


get a new gas cap your evap sytem isnt working if the gas cap doesnt work then you might have a leak and check your EVAP purge valaves

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1 Answer

Check engine is On in the sacanner apaeir PO449 "gas cap open"


use obd reader to identify the code,at desame time to solve the problem. and erase check engine on your dushboard

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