Question about 2007 Chevrolet Chevrolet Impala LT

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Evaportive emissions vent valve soleniod malfunction

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  • Chester McDowell Sr
    Chester McDowell Sr Apr 23, 2014

    There are code reading, P0449 and P0455, showing for this problem

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I had the codes tell me this was bad. I replaced and it helped but didn't fix. What I eventiallly found was that I removed the charcoal canister and blew it out. Wow the dust that came out. Fixed the problem. Before you reassemble make sure you blow lines out.

Posted on May 09, 2014

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Posted on Jan 02, 2017

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1 Answer

I need to know the code po449 hyundai tiburon gt v6 2003


The code is an evaporative emission vent valve soleniod malfunction.

Sep 01, 2015 | Hyundai Cars & Trucks

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What does code p0446 mean on a 2001 Buick Centry?


P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). The description of the fault varies between different car manufacturers, but one thing is common, the code P0446 doesn't directly point to a defective part; some testing might be required to pinpoint the faulty component. What can cause the code P0446: - faulty vent control valve - blockage at the vent hose, vent filter or vent control valve - open or short in the vent control valve circuit - bad charcoal canister - EVAP system leak - faulty EVAP system pressure sensor - bad vacuum switching valve (VSV) - stuck open purge valve (solenoid)

Aug 13, 2014 | 2001 Buick Century

1 Answer

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:

  • p1443
    Evaporative Emission Control System Control Valve
  • audi
    EGR Valve Position Sensor Signal Too Low
  • bmw
    Leakage Diagnostic Pump Control Circuit Signal High
  • ford
    EVAP Control System Purge Control Solenoid or Purge Control Valve Fault
  • hyundi
    EVAP System Tank Cap Missing
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    Evaporative Emission Control System Control Valve
  • lexus
    Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
  • mazda
    Evaporative Emission Control System Large leak detected
  • mitsubishi
    EVAP Purge Control Valve 2 Circuit Malfunction
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    Evaporative Emission Control System Control Valve
  • suburu
    Evaporative Emission Control System Vent Control Function Problem
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    EVAP Purge Control Valve Malfunction- Stuck Open
  • toyota
    Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
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    EGR Valve Position Sensor Signal Too Low
  • Dec 07, 2013 | Cars & Trucks

    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

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


    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 ...

    Sep 30, 2010 | 2004 Hyundai Elantra

    2 Answers

    Codes po449 and po455 came on. what is my problem


    p0449evap emissions system control valve vent/solenoid circuit malfunction p0455evap emissions system control leak detected [gross leak] usually u check ur gas cap and vent lines for a problem because it is usually the problem but check the wiring and connections to the purge valve also check for leak around the purge valve

    Jun 10, 2010 | 2008 GMC Sierra 1500 2WD

    1 Answer

    2002 chevy blazer codes 443 449 i replaced the maf sensor the vaf sensor on air horn the emmision valve on the engine the vent valve to even tried the gas cap clear codes drove the truck guess what codes...


    p0443 is evaporative emission control system, purge control curcuit malfunction, p0449 is emission control system, vent control curcuit malfunction. p0449 is often a filler cap problem on fuel tank. try tightening cap

    May 20, 2010 | 2002 Chevrolet Blazer

    1 Answer

    Excessive gas usage, Code PO455 - large leak in evaportive system


    You have a vaccum leak somewhere, try the map sensor vaccum or the EGR Control valve vaccum

    Jul 27, 2008 | 2001 Dodge Caravan

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