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Old 01-14-2007, 09:02 PM   #1
Scooby Newbie
Member#: 17418
Join Date: Apr 2002
Chapter/Region: RMIC
Location: Littleton, CO
2002 WRX
2003 4Runner

Default Help with CEL...

I have a po440 CEL (evap. emiss. control malfunction) on my wife's '00 pontiac. i replaced the gas cap already thinking this was the culprit. no luck, the CEL is back. what else could be the problem?
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Old 01-14-2007, 11:01 PM   #2
Scooby Guru
Member#: 22412
Join Date: Aug 2002
Chapter/Region: SWIC
Location: Albuquerque, NM
2012 Legacy 2.5GT
Ice Silver Metallic


Maybe other parts of the evap. system? Charcoal cannister, valves/solenoids, etc. - check to see if any wires are broken, etc. - for specific diagnostic stuff, it really helps if you have the service manual for the car, though...
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Old 01-15-2007, 08:19 PM   #3
Scooby Guru
Member#: 131347
Join Date: Nov 2006
Chapter/Region: MAIC
Location: Richmond Va
2007 Legacy 2.5i SE
98 Z/28, VN 900 custom


Whenever you have an evap code first place to check is the gas cap. Verify it is tight and reset light. If light comes back on with the same evap codes then the charcoal canister, purge valve, etc might be the culprit.
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