check egine light always on - Maintenance and Repair Forum

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check egine light always on
Wednesday, September 07, 2005 12:06 AM
my check engine light came out after the first week i got the car and it burnin something out the rear end but stopped after that first week, so i took it to autozone and they put their odbll scanner to it and it came up with P0440 wich was evaporative emissions (EVAP) system fault. could any1 tell what this could be so i could fix it or replace it and stop seeing that dreadful light.

Re: check egine light always on
Wednesday, September 07, 2005 4:20 AM
could we get some info on your car?
could be you dont have your gas cap on tight tnough or you need a new one....or could be a bad computer, thats what i have so nothing is really wrong i just spits that cel out every once in a while then goes away a cpl weekd later




Re: check egine light always on
Wednesday, September 07, 2005 3:09 PM
Check these posts. I had the same problem on my parents 2001 Cav.

Pulling Code P0440 from Computer

Evaporative Emissions CEL
Re: check egine light always on
Wednesday, September 07, 2005 11:55 PM
ive changed the gas cap and its not that
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