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What does purge or vent solenoid defective means?

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This is refered to the DTC EVAP Large Leak Detected - The ECM has detected a large leak in the EVAP system during a system monitor test

Probable Cause[s]:
1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4. Vacuum leak at engine

So, since you replaced the gas cap already, it sounds like checking the EVAP canister and related hoses would be the next thing to do. If there are no obvious loose or broken hoses or anything, you may have to acquire more info from a Chilton's Total Car Care or Haynes manual, or some professional-grade manual, in order to check the operation of the solenoids. Check with your local Library. Mine has online access to AllData and Mitchells, besides paper versions of Chilton's TCC you can check out. Take a thumb-drive with you, and you can save whole web pages or diagrams as needed.

A smoke machine is nice, especially if you're lazy, but hardly necessary to fix these problems most of the time. If you know where all the hoses are to check them, and how to check the solenoids, there really isn't much else left.

I hope helps (remember to rate this asnwer).

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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SOURCE: check engine light on

The codes you are getting can be caused by one of the several parts to the canister purge valve. It would best be taken to a mechanic or you may be replacing parts that you don't need. Normally the evap canister purge valve has stuck or broken or disconnected.

Posted on Jan 26, 2010

mcalkins3
  • 123 Answers

SOURCE: the solenoids and system wiringare monitored for opens or shorts

The only thing that can cause a saturated vapor canister is over filling the fuel tank.,

Posted on Oct 27, 2008

  • 1 Answer

SOURCE: check engine soon light. diagnosed as troble shooting codepo44

Change the evap vent solenoid canister located near the master cylinder on the right side of the engine or your hoses may be cracked. Good luck!

Posted on Mar 12, 2009

  • 275 Answers

SOURCE: 2004 Pontiac Grand Prix Evaporative Canister

you should be able to fix it look for a can near the fuel tank that has vacuum hoses coming out of it and you should be able to just buy the bad solenoid

Posted on Nov 03, 2008

  • 7353 Answers

SOURCE: What do we do when

P0446 could be a bad purge valve, bad ecm, or wiring between. the only way to know is to have a mechanic diagnose it. It needs to be repaired if you want the engine light off. If you let it go, the ecm cannot tell you if other problems are happening because the light is already/still on.

Posted on Sep 10, 2010

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2 Answers

How do I no my solend is bad


A code P0442 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) A small leak/hole in a fuel vapor hose/tube Other small leak in EVAP system Faulty vent o-ring seal Defective vent valve Defective purge valve Defective leak detection pump

Read more at: http://www.obd-codes.com/p0442
Copyright OBD-Codes.com

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WHAT DOES FAULT CODE P1446-00 MEAN


older nissan? evap canister purge fault. check for loose or rotten/disconnected vacuum hoses before testing the vapor canister purge valve.
25439609-xipalmoknr3fbjmp51kycajc-2-0.jpg The charcoal canisters also clog up. Do some diagnosing before you go changing parts.

Feb 16, 2015 | Cars & Trucks

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Code po 441 and po 446 what does these mean 2000 toyota tundra


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

Bad vacuum switch Broken or damaged EVAP line

canister Open in PCM purge command circuit

Open 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




A code P0446 could mean one or more of the following has happened:

Faulty vent valve

Open short or excessive resistance on Vent valve control circuit Blockage of vent valve

Bad PCM

Jul 03, 2014 | 2000 Toyota Tundra

1 Answer

I have a code P0449 on my 1999 chevy malibu 3.1


check engine light ison,autozone says code is P0449 this is whattheir ticket says:

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

Dec 06, 2012 | 1999 Chevrolet Malibu

2 Answers

P0446 code 1998 gmc jimmy how do I fix this? where is it located?


Hi there:

A code P0446 could mean one or more of the following has happened:
- Faulty vent valve
- Open, short or excessive resistance on Vent valve control circuit
- Blockage of vent valve
- Bad PCM




With a P0446 OBD-II trouble code, here are some things to try:
- Replace Vent valve
- Repair open, short, or resistance problem in control circuit
- Repair open, or short, or resistance problem in power circuit

- Replace PCM




Hope this helps.

May 30, 2012 | 1998 GMC Jimmy

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

I HAVEA 2006 CHEVERLET SUBURBAN 1500, AND THE CHECK ENGINR LIGHT STEAYS ON. THE CODE IS P0449; WHAT IS THIS AND WHERE IS IT LOCATED AT.


Hello. Your code indicates that your emission system is acting up. If you live in California, you might have a problem passing the next mandatory emmissions test. 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

Apr 08, 2010 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

WHAT TO DO ABOUT TROUBLE CODES PO449 & PO141 ON 01 VENTURE


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


A code P0141 may mean that one or more of the following has happened:
  • open or short to ground in the wiring harness
  • O2 heater circuit wiring high resistance
  • O2 heater element resistance is high
  • Internal short or open in the heater element
Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.
Possible Solutions
  • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
  • Repair short or open or high resistance in wiring harness or harness connectors

Oct 10, 2009 | 2001 Chevrolet Venture

1 Answer

Check engine soon light. diagnosed as troble shooting codepo44


Change the evap vent solenoid canister located near the master cylinder on the right side of the engine or your hoses may be cracked. Good luck!

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