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Check engine light on, was told told possible purge valve problem. had the purge valve solenoid replaced but light came back on a day later. What could be the problem?

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Hi,
I had the same problem, which ended up being a faulty charcoal canister. the canister was causing the purge valve to fail because tiny pieces of charcoal were damaging it. if you remove the purge valve and tap it on a white sheet of paper on a table , if you see tiny black specs then the charcoal canister is faulty.
i hope this helps
Regards
P

Posted on Aug 04, 2010

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What does this code P0441 mean for engine light on 2004 dodge ram 1500 truck?


2004 Dodge Ram 1500 Truck Code P0441 indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
EVAP emission canister purge is controlled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.

Symptoms :

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.

Causes :

A code P0441 could mean one or more of the following has happened:

Bad vacuum switch Broken or damaged EVAP line or canister Open in PCM purge command circuit Open or short in Voltage feed circuit to Purge Solenoid Faulty purge solenoid Restriction in EVAP solenoid, line or canister Corrosion or resistance in purge connector Bad PCM

Possible Solutions :

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try: Common Chrysler fix - Replace Leak Detection Pump / LDP Repair damaged EVAP lines or canister Repair open or short in voltage feed circuit to Purge Solenoid Repair open in PCM purge command circuit Replace purge Solenoid Replace vacuum switch Repair restriction in Evap line or canister or solenoid Repair resistance in purge connector Replace PCM

I hope this helps.

May 08, 2015 | Dodge Cars & Trucks

1 Answer

Gas cap light evap code


What vehicle is it? (year, make, model, engine?) There are a lot of vacuum lines associated with the evap system on most vehicles. It could be as simple as a vacuum line cracked, broken or disconnected.

Jan 26, 2014 | 2005 Buick Terraza

1 Answer

Po441 2002 Hyundai, engine hard starting after fill up


Most likely is a bad EVAP purge valve. But check below list.
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle'sicon1.png fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

EVAP emission canister purge is controlled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Causes

A code P0441 could mean one or more of the following has happened:

  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector
  • Bad PCM
Possible Solutions

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

  • Replace Leak Detection Pump / LDP
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or solenoid
  • Repair resistance in purge connector
  • Replace PCM

Oct 24, 2012 | Hyundai Elantra Cars & Trucks

1 Answer

2000 toyota camry 2.2L obd code p0441


Hi,

P0441: Evaporative Emission Control System - Incorrect Purge Flow

This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses.

The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

Possible causes:

  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector

Possible solutions:

  • Replace Leak Detection Pump / LDP (if applicable to your vehicle)
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or soleniod
  • Repair resistance in purge connector

  • Check ALL the above until you correct the issue. NEVER replace PCM, unless you prove the PCM to be faulty (as a last resort).

    Cheers,

    Jun 08, 2011 | 2000 Toyota Camry

    1 Answer

    My check engine light is on along with a message in the odometer box saying check gas cap. i looked underneath and all hoses seem tight. ive replaced the cap but to no success. whats the best way to check...


    You seemed to look everywhere but how about under the hood?what manufacture want to do is seperate
    the check engine light from coming on due to a gas cap leak, you have at the gas tank a vent valve and in the engine area a purge valve, the most common problem besides a broken purge solenoid it self or wire and the vent solenoid and wire or canister problem is vacuum to the purge valve, its a small hose that breaks at the connection ,your hood diagram will point it out as a hose to a purge system just look at the hoses connection there is not too many there

    May 06, 2011 | 2007 Dodge Ram 1500 Quad Cab Sport

    2 Answers

    Code says evaporator purge solenoid


    Which code specifically? Do not assume you need a new solenoid. Our recommendation will depend on the specific code and some troubleshooting results. I usually recommend checking over all the EVAP vacuum lines and the gas cap too whenever there is a purge valve code. Check the vacuum lines at the cannister in the left rear bumper. I will paste info on the purge solenoid below.

    P0440 Evaporative emission (EVAP) system - malfunction

    Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


    P0441 Evaporative emission (EVAP) system - incorrect flow detected

    Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


    P0442 Evaporative emission (EVAP) system - small leak detected

    Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


    P0443 Evaporative emission (EVAP) canister purge valve - circuit malfunction

    Possible causes: Wiring, EVAP canister purge valve, ECM


    P0444 Evaporative emission (EVAP) canister purge valve -open circuit

    Possible causes: Wiring open circuit, EVAP canister purge valve, ECM


    P0445 Evaporative emission (EVAP) canister purge valve -short circuit

    Possible causes: Wiring short circuit, EVAP canister purge valve, ECM


    P0450 Evaporative emission (EVAP) pressure sensor - circuit malfunction

    Possible causes: Wiring, EVAP pressure sensor, ECM


    P0455 Evaporative emission (EVAP) system - large leak detected

    Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


    P0456 Evaporative emission system - very small leak detected

    Possible causes: Mechanical fault, hose connection(s), EVAP pressure "sensor


    P0457 Evaporative emission system - leak detected (fuel cap loose/off)

    Possible causes: Mechanical fault, hose connection(s), EVAP pressure sensor


    P0458 Evaporative emission system, purge control valve -circuit low

    Possible causes: Wiring short to earth, EVAP valve


    P0459 Evaporative emission system, purge control valve -circuit high
    Possible causes: Wiring short to positive, EVAP valve


    Evaporative Emission Purge Solenoid

    Description & Operation
    The duty cycle EVAP canister purge solenoid (DCP) regulates the rate of vapor flow from the EVAP canister to the intake manifold. The Powertrain Control Module (PCM) operates the solenoid.
    During the cold start warm-up period and the hot start time delay, the PCM does not energize the solenoid. When de-energized, no vapors are purged. The PCM de-energizes the solenoid during open loop operation.
    The engine enters closed loop operation after it reaches a specified temperature and the time delay ends. During closed loop operation, the PCM cycles (energizes and de-energizes) the solenoid 5 or 10 times per second, depending upon operating conditions. The PCM varies the vapor flow rate by changing solenoid pulse width. Pulse width is the amount of time that the solenoid is energized. The PCM adjusts solenoid pulse width based on engine operating condition.
    Removal & Installation
    The duty cycle evaporative (EVAP) canister purge solenoid is located in the engine compartment near the brake master cylinder.

    1. Disconnect electrical connector at solenoid.
    2. Disconnect vacuum lines at solenoid.
    3. Lift solenoid slot from mounting bracket for Removal & Installation.

    To Install:
    1. Position solenoid slot to mounting bracket.
    2. Connect vacuum lines to solenoid. Be sure vacuum lines are firmly connected and not leaking or damaged. If leaking, a Diagnostic Trouble Code (DTC) may be set with certain emission packages.
    3. Connect electrical connector to solenoid.
    Purge solenoid location:

    jturcotte_65.gif
    EVAP cannister location:
    jturcotte_66.gif

    Nov 05, 2010 | 2000 Jeep Grand Cherokee

    1 Answer

    Hav Check eng. Light Code PO 441 what could be the problem?


    P0441 Evaporative Emission Control System Incorrect Purge Flow

    This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

    EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tankmag-glass_10x10.gif into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
    FB.init("dd7d9e9681341cde77587bc6a2029f6f");OBD-Codes.com on Facebook Symptoms

    Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
    Causes

    A code P0441 could mean one or more of the following has happened:

    • Bad vacuum switch
    • Broken or damaged EVAP line or canister
    • Open in PCM purge command circuit
    • Open or short in Voltage feed circuit to Purge Solenoid
    • Faulty purge solenoid
    • Restriction in EVAP solenoid, line or canister
    • Corrosion or resistance in purge connector
    • Bad PCM
    Possible Solutions

    With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

    • Common Chrysler fix - Replace Leak Detection Pump / LDP
    • Repair damaged EVAP lines or canister
    • Repair open or short in voltage feed circuit to Purge Solenoid
    • Repair open in PCM purge command circuit
    • Replace purge Solenoid
    • Replace vacuum switch
    • Repair restriction in Evap line or canister or soleniod
    • Repair resistance in purge connector
    • Replace PCM

    Sep 22, 2010 | Volkswagen Passat Cars & Trucks

    1 Answer

    I have a toyota matrix w/ 88,000 miles 2006. I have the check engine light on, took it to advance auto, codes are PO441- EVAP control system , purge flow-fault also PO455 EVAP system-large leak I don't...


    P0441 Evaporative Emission Control System Incorrect Purge Flow
    OBD-II Trouble Code Technical Description

    Evaporative Emission Control System Incorrect Purge Flow
    What does that mean?

    This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

    EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
    Symptoms

    Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
    Causes

    A code P0441 could mean one or more of the following has happened:

    * Bad vacuum switch
    * Broken or damaged EVAP line or canister
    * Open in PCM purge command circuit
    * Open or short in Voltage feed circuit to Purge Solenoid
    * Faulty purge solenoid
    * Restriction in EVAP solenoid, line or canister
    * Corrosion or resistance in purge connector
    * Bad PCM

    Possible Solutions

    With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

    * Common Chrysler fix - Replace Leak Detection Pump / LDP
    * Repair damaged EVAP lines or canister
    * Repair open or short in voltage feed circuit to Purge Solenoid
    * Repair open in PCM purge command circuit
    * Replace purge Solenoid
    * Replace vacuum switch
    * Repair restriction in Evap line or canister or soleniod
    * Repair resistance in purge connector
    * Replace PCM
    THIS IS LIKELY FROM TOPPING OFF THE TANK EACH TIME YOU FUEL UP



    P0455 is similar:

    Technical Description

    Evaporative Emission Control System Leak Detected (no purge flow or large leak)
    What does that mean?

    This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
    Symptoms

    You likely won't notice any drivability problems.
    Causes

    A code p0455 most likely means one or more of the following has happened:

    * A loose or improperly affixed gas cap
    * A non-conforming gas cap (i.e. not factory/original brand)
    * Other leak or damaged piece in EVAP system

    Possible Solutions

    With a p0455, the most common repair is to:

    * Remove and reinstall the gas cap, have AutoZone clear the codes, and drive for a day and see if the codes come back.
    * Otherwise, replace the gas cap, and/or
    * Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

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    Sep 05, 2010 | 2006 Toyota Matrix

    3 Answers

    Check engine light came on, says its a evaporative emission system, code# P0440, what is that?


    What does that mean?
    This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

    Possible 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
    HTH,

    Mike...

    Dec 04, 2009 | 1996 Chevrolet Cavalier

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