Question about 2005 Chevrolet Equinox LT

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Code p0496 replaced purge valve and code p0496 came up high purge flow whats the problem

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Evaporative Emission System Flow During Non-Purge

Posted on Oct 13, 2013

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Posted on Jan 02, 2017

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chiquititas
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SOURCE: 96 corsica error cod po441 no purge flow

Look, that code means:
P0441 - Evap emission control system Incorrect purge flow

so try to replace the emission control.

Posted on Jun 19, 2008

  • 407 Answers

SOURCE: my check engine light is on giving me a purge

the purge valve on the engine the lines might be crossed need code to be more helpful

Posted on Oct 15, 2009

  • 1 Answer

SOURCE: insufficient egr flow, already replaced egr valve

I too replaced the egr valve and was discouraged that the check engine light came back on with the same "insufficient flow" code. I took it to my mechanic to put it on the monster diagnostic machine. It said "check all vacuum line, and or map sensor". After looking real close we found a melted vacuum tube, and a cracked vacuum angle connector. Replaced both vacuum pieces, reset the codes, and good to go. If that fails than the next thing is the map sensor, that tells the EGR valve what to do.

Posted on Jan 28, 2011

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GMC SERRIA P0496, SYSTEM FLOW DURING NON PURGE


This DTC checks for undesired intake vacuum flow to the EVAP system. The control module seals the EVAP system by commanding the EVAP canister purge solenoid valve OFF and the EVAP canister vent solenoid valve ON. The control module monitors the fuel tank pressure (FTP) sensor to determine if a vacuum is being drawn on the EVAP system

Read more at: https://www.obd-codes.com/p0496
Copyright OBD-Codes.com
P0496 EVAP Flow During Non Purge Condition

Mar 02, 2017 | GMC Cars & Trucks

1 Answer

Had my car checked because engine light was on came up with PO496 What does this mean?


code p0496 refers to evaporative emission system--high purge flow===causes--wiring--EVAP valve--mechanical fault
check that the cap is on tight
change the purge valve.

Mar 11, 2015 | 2008 Saturn VUE

1 Answer

Check engine code p0496 2009 mailbu


code p0496 refers to evaporative emission system-high purge flow ===causes --wiring--EVAP valve--mechanical fault.

Check hoses and replace the valve.

Aug 17, 2014 | Cars & Trucks

1 Answer

P0496 code


Hi there:
DTC P0496 - EVAP (evaporative emission) Flow During A Non-Purge Condition


The P0496 DTC code is a generic code which applies to all vehicle makes. A quick search on the 'net shows that this code seems to be more common with GM (Chevy, Pontiac, etc.) vehicles. In Acura, Honda, Hyundai, Kia, and Mazda vehicles, this code is described "EVAP system high purge flow" which is the same thing.


This DTC checks for undesired intake vacuum flow to the EVAP system. The control module seals the EVAP system by commanding the EVAP canister purge solenoid valve OFF and the EVAP canister vent solenoid valve ON. The control module monitors the fuel tank pressure (FTP) sensor to determine if a vacuum is being drawn on the EVAP system

If vacuum in the EVAP system is more than a predetermined value within a predetermined time, this code is set and the MIL (malfunction indicator lamp) is illuminated.



Symptoms of a P0496 DTC will include MIL illumination, and most likely no other noticeable symptoms. Some may experience a hard start / crank condition. In some cases the engine may run rich which may not detected, but can cause damage long-term (think: catalytic converter damage).

Potential causes of a P0496 EVAP code include:

  • Faulty purge or vent solenod/valve
  • Plugged EVAP canister
  • Failed EVAP / fuel pressure sensor
  • Poor electrical connection
  • Short electrical circuit condition
  • (Hyundai, Isuzu)
  • Faulty canister purge valve
  • Blocked vapor canister
  • Faulty vent solenoid
  • Leaking EVAP system hose (Hyundai)
  • Faulty purge flow sensor (Kia, Mazda)

Possible Solutions

The most common fix for this DTC is to replace the purge solenoid valve. However, be sure to do a proper diagnosis before replacing parts!

Ideally you would use an advanced scan tool, with the ignition on and engine off, you seal the EVAP system using the Seal/Purge function. Then, watch the fuel tank pressure sensor reading when you turn the purge off. If the pressure value is higher than the normal range set by the manufacturer, replace the EVAP canister purge solenoid valve. Refer to a model-specific repair guide for the proper specification.


If you don't have access to the scan tool, you could always disconnect the vacuum line at the purge valve going back to the charcoal canister. Unplug the electrical connector on the purge valve, start the engine, then put your finger on the valve where you disconnected the line. If you can feel vacuum there, the purge solenoid valve is faulty and needs to be replaced. Alternately, you could simply remove the purge solenoid valve and blow into it. It is normally closed, so if air goes through then you need to replace it.


If the purge valve checks out good, either the problem with the valve is intermittent or there is a problem with the fuel tank pressure sensor. To test the fuel tank pressure sensor you will need to have a high end scan tool to monitor the tank pressure with the gas cap removed. If the sensor shows vacuum with the gas cap removed, there is a problem with the fuel tank pressure sensor.


Here is a picture of one purge solenoid valve. Yours may look similar or different, consult a factory service guide or your local vehicle dealership for more details.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 22, 2012 | Cars & Trucks

1 Answer

2005 Suzuki Forenza, check engine light is on with fault codes reading P0488 and P0496. Can't get a good explanation of what the cause may be. Any insight would be greatly appreciated.


code P0488 exhaust gas recirculation closed valve pintle error ( EGR Valve ) most likely replace the valve.

code P0496 evaporative emission system continuous purge flow. could be many things, Gas cap, purge valve , purge canister, probably need to have this one check by the dealer.

Jul 01, 2011 | 2005 Suzuki Forenza

1 Answer

What do computer codes P0068 & P0496 mean ?


P0068 MAP/MAF is Throttle Position Correlation.In this error code:--- From the error code P0068 you have its indicating a bad throttle body or throttle actuator controller.. The 2 tps sensors inside read each other and if they differ for a few seconds or milliseconds then you get a this error code with reduced power. In some cases the new connector and wiring to the throttle actuator is required and in some cases getting the throttle body cleaned helps.---------------
And code P0496 - "Evaporative Emission System High Purge Flow".------------In this error the purge valve needs to be replaced. The purge valve is mounted on the inlet manifold under the hood.Its on the top of the intake manifold, passenger side. Two hoses (one on each side) and a wire harness on the front of it. It has a red w/blue stripe and brown w/white stripe wire harness connected to it.Remove and replace this valve.-----------------This will help.Thanks.Helpmech.

Jan 20, 2011 | 2008 Saturn Astra

2 Answers

I have not had any problems yet but the engine light is on and it came up with the code p0496 what could it be


the p0496 means that the evap system flow during non-purge first check ur gas cap this can cause the check engine code if cap is good and on tight than the usual culprit is either evap purge solenoid and or canister vent solenoid sticking not expensive to replace by self in driveway but before u do check with a dealer in area and advise about code to see if covered should be since its an 08 evap should be covered [dont know mileage and or condition of truck which makes a difference on warranty ]

Jan 11, 2011 | 2008 Chevrolet Trailblazer

2 Answers

P0496 code


possible sticking purge valve P0496-evap emissions high purge flow fault

Jan 21, 2010 | 2007 Hyundai Accent GS Hatchback

3 Answers

What is PO496 code? I've got a PO171B also, which I'm assuming is dirty an O2 sensor.


2007 cobalt and am getting P0496 code as well. would love to know what is cause!

Apr 30, 2009 | Chevrolet Cobalt Cars & Trucks

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