Question about 2002 Pontiac Grand Prix

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I have a code P0496 and my car from time to time says i need a gas cap and I brought another gas cap and it still say I need a gas cap from time to time....help please

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Posted on Jan 02, 2017

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SOURCE: 05 saturn ion with codes of p010

p0106: manifold absolute pressure/barometric pressure curcuit range/performance problem

p0496: EVAP during a non-purge condition.

Its best to google these codes to find a solution and probably why there on and how can you get rid of them.

Posted on Aug 14, 2009

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SOURCE: P0496 I HAVE CHANGED GAS CAP. ONLY PROBLEM IS

check fuel pressure relief valve

Posted on Sep 12, 2009

  • 4044 Answers

SOURCE: I just took my car

This sounds correct. Replace the O2 sensor and clear that from the equation. If you have a faulty check valve on the gas pump it is allowing fuel to come back down the fuel line and what happens is the pump has to work a few seconds to fill the line back up and clear the air bubble. Other than a nuisance this should not hinder operation of the vehicle once it is running.

Posted on Nov 17, 2010

skychief2001
  • 21873 Answers

SOURCE: code p0496 i changed gas cap code came back on what to do

Code 496 is not about the gas cap.
The code means the computer has detected pressure in the EVAP system when it should not be there.
The EVAP system consists of lines and valves that vent the gas tank to the vapor canister and the engine.
The problem could be one of the valves or the pressure sensor. You may need a shop manual to get the diagnostic steps to test the system.

Posted on Oct 03, 2012

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P0496 code 2006 Cadillac CTS


You need to take your car to Autozone and have them read then clear the code before worrying about anything,it needs to come back on to be a hard code,Make sure you tighten your gas cap three or four clicks past tight
P0496=.http://www.diyobd2.fr/wholesale/fvdi-abrites-commander-for-bmw-and-mini-v96-2308.html Evaporative Emission System High Purge Flow

Oct 17, 2013 | 2007 Hyundai Accent GS Hatchback

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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

I get the code PO496 on my 2006 GMC Envoy. I have replaced the gas cap and cleared the code but it comes back. Any thoughts?


Related Searches: GM Parts - GM History - GM Diagnostic Codes - More... Web Results 1-10 of 266 Code P0496 - Evap system error - SaturnFans Forums
Reading on the P0496 code, I don't know for certain that the solenoid on the manifold is your problem. On my Impala and

Feb 27, 2011 | GMC Envoy XL Cars & Trucks

1 Answer

I have a 2004 Chevy Trailblazer. I have to codes coming up P0106 and P0496. What does that mean and how can I fix it?


P0106 is basically a leak somewhere in the intake manifold, could be vaccum hoses that are loose or cracking, or a bad MAP sensor which is very simple to change, about 30 seconds.

P0496- is an EVAP problem, could be as simple as a gas cap that is loose or not sealing properly. Turn the cap several clicks then clear the code out, see if this takes car of this problem. If not, look at your Canister Vent Valve, about $30, or the Canister Purge Solenoid, about $30 also.


I've personally had both these codes also, mine ended up being a bad MAP sensor. P0496 showed up when my significant other didn't put the gas cap on correctly or tight.

Jan 19, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

My 2007 cadillac cts engin service light is on. I used OBD-2 code reader to read it, got a alarm code P0496. What's the meaning of P0496?thanks.


Check the gas cap,also,it could mean the evap system is not working,or you have run out of gas recently,if all this checks out ok,then the tank is not venting properly.

Sep 10, 2010 | 2007 Cadillac CTS 3.6L

1 Answer

My check engine light is on so I ran a scan with my personal car code reader & got code p0496. I called chevrolet & they told me its p0442. Which is correct?


p0496 is evap emission is high purge flow fault, p0442 is emission control system( small leak) the meaning is about the same. check for a bad gas cap first. sometimes this will set a check engine light. loosen cap and see if this is the problem. if it is. usually if you turn cap only a little the light will go out. but if bad enough just change cap.

Aug 13, 2010 | Chevrolet Classic Cars & Trucks

2 Answers

P0496 code


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

Jan 21, 2010 | 2007 Hyundai Accent GS Hatchback

1 Answer

Computer analysis of computer


This is an evaporative emission code, you ether left the gas cap loose or the fuel system is leaking and will not hold a vacuum.

This is the code definition:
P0496 - Evaporative Emission (EVAP) System Flow During Non-Purge

Sep 30, 2008 | 2007 Suzuki Reno Hatchback

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