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What is evaporative emission vent valve solenoid malfunction and how do you repair it?

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Refer to a Professtional Certified Garage for Emision Test your Catalizer plug emission control as to be change and clean ..
Check PC,s valve also for bad Vacumm control emission for Economic control system ...

Posted on Sep 30, 2010

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Posted on Jan 02, 2017

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bschilz
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SOURCE: P0449 Evaporative Emission Control System Vent

While looking for the location of the vent/solenoid for you, I came across a blog that said this error can be caused by a loose or faulty gas cap. You may want to look at that first and possibly solving the problem. Replace the cap, get autoparts store to reset the code and see what happens.

Posted on Jan 07, 2010

SOURCE: The check engine light on my Chevy Silverado cam

That is laymans terms. That is why it is in your manual. You ,need to get up to speed ,on todays somewhat high tech vehicles.
Now you need to go to a shop that does EVAP testing, with a smoke machine,if necessary,or at least put a scanner on it ,and replace the vent valve solenoid,if bad.(again laymans part teminology,

Posted on May 12, 2010

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How to repair and where is located P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction


Purge Solenoid and Vent Valve are two different items within the Emissions system. The purge valve is under hood near intake manifold and the vent valve is under bed near fuel tank. I would suggest that you verify what the real problem is before buying any parts. It could get expensive to "guess" at this system.

Apr 27, 2014 | 2008 Isuzu I 290

1 Answer

Code p0449 vent solenoid intermittent


EOBD II Error Code: P0449
Fault:
Evaporative Emission (EVAP) System, Vent Valve - Circuit Malfunction
Possible Cause:
Wiring harness.
Evaporative emission (EVAP) canister purge valve.
Engine control module (ECM).

Dec 28, 2013 | 2001 Pontiac Montana

1 Answer

Code p1443


without knowing your make or model:

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    Evaporative Emission Control System Control Valve
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    EGR Valve Position Sensor Signal Too Low
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    EVAP Control System Purge Control Solenoid or Purge Control Valve Fault
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    Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
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    EVAP Purge Control Valve Malfunction- Stuck Open
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  • Dec 07, 2013 | Cars & Trucks

    1 Answer

    I replaced evap vent solenoid & dtc came back


    Here is the definition of the code and possible causes.

    P0449 PONTIAC Description The Engine Control Module (ECM) monitors the Evaporative Emission System (EVAP) Vent Valve/Solenoid system wiring for opens or shorts.

    When is the code detected?The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

    Possible causes - Vacuum leaks, damaged hoses or improper routing
    - EVAP system - Check fuel cap, canister, valves or components
    - Faulty purge or vent solenoids
    - Check connector and wiring
    - Fuel saturated vapor canister
    - Failed EVAP vent solenoid
    Read more: http://engine-codes.com/p0449_pontiac.html#ixzz2M1YJd7DU

    Feb 26, 2013 | 2002 Pontiac Grand Prix

    1 Answer

    Toyota echo won't start code 440 441 446


    Error Code: P0440
    Fault Location:
    Evaporative Emission (EVAP) System - Malfunction
    Possible Cause:
    Malfunction Indicator Lamp (MIL) active.
    Soution:
    Check Evaporative Emission (EVAP) System Sealing.
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .

    Error Code: P0441
    Fault Location:
    Evaporative Emission (EVAP) System - Incorrect Flow Detected
    Possible Solutions:
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Perform Output Test.
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .
    Check Evaporative Emission (EVAP) Canister.
    Perform Basic Setting.
    Check Pipes between Tank Breathing and Throttle Body.

    Error Code: P0446
    Fault Location:
    Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
    Possible Cause:
    Wiring harness.
    Evaporative emission (EVAP) canister purge valve.
    Engine control module (ECM).

    Feb 25, 2013 | 2002 Toyota ECHO

    1 Answer

    Code po449 2009 cobalt


    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 System) purge/vent solenoid circuit condition

    Explanation:
    The solenoids and system wiring are monitored for opens or shorts

    Probable Causes
    1- Purge or vent solenoids defective
    2- Check connevtor and wiring
    3- Fuel saturated vapor canister
    4- Failed EVAP vent solenoid

    Feb 17, 2013 | 2009 Chevrolet Cobalt

    1 Answer

    What code is p0449


    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 System) purge/vent solenoid circuit condition

    Explanation:
    The solenoids and system wiring are monitored for opens or shorts

    Probable Causes
    1- Purge or vent solenoids defective
    2- Check connevtor and wiring
    3- Fuel saturated vapor canister
    4- Failed EVAP vent solenoid

    Jan 08, 2012 | Chevrolet Cobalt Cars & Trucks

    3 Answers

    Code 449? what is this,anyone. tks


    Code po449 is for bad  solenoid vent valve.After replacing the valve  check for the   12 volts at the "pink" wire.
    This error relates too 

    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 System) purge/vent solenoid circuit condition

    Explanation:
    The solenoids and system wiring are monitored for opens or shorts

    Probable Causes
    1- Purge or vent solenoids defective.
    2- Check connector and wiring.
    3- Fuel saturated vapor canister.
    4- Failed EVAP vent solenoid.


     --------

    The cost of the vent solenoid valve is near to 30 bucks. And the valve is located near the gas tank.

    Thanks. you can rate this solution and show your appreciation.

    May 20, 2010 | 2005 Chevrolet Silverado

    2 Answers

    P0441 EVAP Control System Incorrect Purge Flow


    Error Code: P0441
    Fault Location:
    Evaporative Emission (EVAP) System - Incorrect Flow Detected
    Possible Cause:
    Malfunction Indicator Lamp (MIL) active.
    Evaporative Emission (EVAP) Canister Purge Regulator Valve faulty/jammed.
    Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
    Evaporative Emission (EVAP) Canister Sealing faulty.
    Pipes between Tank Breathing and Throttle Body leaky/blocked.
    Hose connection(s).
    Intake leak.
    Possible Solutions:
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Perform Output Test.
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve.
    Check Evaporative Emission (EVAP) Canister.
    Perform Basic Setting.
    Check Pipes between Tank Breathing and Throttle Body.
    VSV connector near air filter box disconnected.

    Jun 15, 2009 | 1996 Chevrolet Monte Carlo

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