Question about 1998 Chevrolet Cavalier

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Check engine light is on. evap emission system comes up on the computer. how do we rectify the problem? no code #.

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Possibly there is a leak in the EVAP system. Make sure that the gas cap is fitted properly. Inspect the fuel vapor lines for any holes or leaks. Also you need to check the purge valve for proper functioning.

Posted on Apr 25, 2013

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SOURCE: check engine light is on-

Causes: A code P0440 could mean one or more of the following has happened:
* The gas cap is not installed or working properly
* The purge solenoid has failed
* The canister is plugged and not working properly

Possible Solutions: With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
* Inspect the EVAP system for cuts/holes in tubes/hoses
* Inspect for damaged or disconnected hoses around the Evap purge solenoid
* Check and/or replace the sensor
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks

Hope helps (remember to rate this).

Posted on Oct 12, 2010

  • 422 Answers

SOURCE: 02 monte carlo- EVAP code.

hi there, you see todays cars are so emmision friendly that not even the vapors from your tank can be released into the atmosphere so what they have done is all your vapors are put into a charcoal canister to absorb the vapors and the next time you start the car it has a purge solenoid open and burn the vapors off. if you look around the intake youll see a hose with a green cap follow it back to the charcoal canister and while your doing that just check the hoses and the hoses around the canister to make sure there is no holes or cracks in them and then follow the hose from the canister to the gas tank. if every thing looks good then i would replace the purge solenoid.

Posted on Aug 28, 2008

  • 1 Answer

SOURCE: 1996 Chevy Blazer check engine light on

More then likely its the Canister Purge Solenoid. you can find it online at www.autozone.com the part number is PV140. And to replace it on blazer you have to remove the spare tire. Alot of people don't know where this part is so I hope this helps you and good luck.

Posted on Oct 14, 2008

  • 71 Answers

SOURCE: P0441 EVAP Control System Incorrect Purge Flow

Test the purge valve and the vent valve for leaks. This can only be done with a Tech 2 and or a vacuum pump.

Posted on Jun 21, 2009

  • 1 Answer

SOURCE: check engine light emission leak

youll have to take it a shop and have them fill the system with "smoke" and examine the entire system for the "smoke". the smoke will pour out from where ever it is leaking from

Posted on Jul 15, 2009

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    Location for 2006 buick rainier EVAP purge solenoid


    You should have an EVAP leak test done . It could be a leaking purge valve , you could need a new gas cap as well or it could be the fuel filler neck . or assorted hoses or the fuel tank pressure sensor . If the check engine light is lit there will be a code .
    DTC P0442: Evaporative Emissions (EVAP) System Small Leak Detected or
    DTC P0455: Evaporative Emission (EVAP) System Large Leak
    DTC P0446: Evaporative Emissions (EVAP) Vent System Performance
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    Dec 01, 2015 | 2006 Buick Rainier

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    Emissions Code


    Error Code: P0441
    Fault Location:
    Evaporative Emission (EVAP) System - Incorrect Flow Detected
    Possible Cause:
    Malfunction Indicator Lamp (MIL) active.
    - Purge control VSV connector disconnected.
    - Evaporative Emission (EVAP) Canister Purge Regulator Valve is 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.
    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.

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    Diagnostic code p0701


    P0453 means EVAP emission pressure sensor high input. Possible causes:
    - Faulty Evaporative Emission System (EVAP) Pressure sensor
    - Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
    - Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection.
    Code p0701 means Transmission control system range/performance. Possible causes:
    - Open or short transmission control system circuit
    - Poor transmission control system electrical connection
    - Check powers and grounds to Transmission Control Module (TCM)

    Aug 27, 2013 | Cars & Trucks

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    Where is evap emission


    Your evap emission system is your pressurized fuel system. If you are getting a check engine light and the scan is throwing an evap code start by changing your fuel cap. It is the cheapest part of the system and quite common to fail. Unfortunately if you change your cap and erase your fault codes and the check engine light returns for evap system again, you will probably end up at the dealership to track down the leak.

    Apr 20, 2013 | 2005 Buick LaCrosse

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    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

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    Have OBD codes P2A00, P0441, P0442, P0446 on my 2003 Highlander. Selling the car in a few months. Does this really need to be repaired before trade-in? Can I just erase the codes?


    NOPE CANT ERASE CODES UNTIL THE PROBLEM IS FIXED OR THE SERVICE ENGINE LIGHT SOON WILL STAY ON. CODE PO441 - EVAPORATIVE EMISSION EVAP SYSTEM INCORRECT FLOW DETECTED.CHECK INTAKE VACUUM HOSE CONNECTIONS AT THE EVAP CANISTER PURGE VALVE.IF ALL IS GOOD.THE EVAP CANISTER PURGE VALVE COULD BE BAD. CODE PO 442 - EVAPORATIVE EMISSION EVAP SYSTEM SMALL LEAK DETECTED. EVAPORATIVE EMISSION SYSTEM LARGE LEAK DETECTED FUEL CAP LOOSE OR OFF MISSING. CODE PO 446 - EVAPORATIVE EMISSION EVAP SYSTEM VENT CONTROL CIRCUIT MALFUNCTION.

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    Check Engine lite comes on Code PO440


    16824/P0440/001088 - EVAP Emission Control Sys: Malfunction Possible Symptoms
    • Malfunction Indicator Light (MIL) active
    Possible Causes
    • Evaporative Emission (EVAP) System leaking
    • Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) faulty
    • Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115) faulty
    Possible Solutions
    • Check Evaporative Emission (EVAP) System Sealing
    • Check Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
    • Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115)

    Jun 17, 2010 | 2000 Volkswagen Beetle

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    I have engine light on and code 1457 on 1999 Odyssey.Please help!!!!!!!!!


    That code is "evaporative emission control system leakage. (evap. canister system)"

    this code takes at least two drive cycles to set. You can try to reset the engine light and emission computer and clear the code and see if the code resets. If it stays clear, it was probably a spurious code. To reset the engine light and emission computer, pull the No. 13 "clock/backup" (7.5A) fuse in the front passenger's kick panel fuse box. Wait at least 10 seconds. Put the fuse back in. This should put the check engine light out. If the light comes back on after two drive cycles (that is; start, run for a while, turn off X 2) have it checked out by a mechanic.

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    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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