Code 455 - Maintenance and Repair Forum

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Code 455
Thursday, May 14, 2009 2:17 PM
I'm sorry I misread the code reader or I have 2 codes (I don't think so) but my scanner reads 455, large leak evap system. I haven't found any bad hoses yet and bought a new gas cap, does anybody know what to check for now?

Re: Code 455
Thursday, May 14, 2009 3:11 PM
http://www.j-body.org/forums/read.php?f=11&i=145367&t=145367



Tinkles

2003 Cavalier 1SV
Bagged and Blown


Re: Code 455
Thursday, May 14, 2009 4:15 PM
That was 445. My code is really 455.
Re: Code 455
Friday, May 15, 2009 8:54 PM
I'm not sure but I may have the problem solved....I purchased a new gas cap and light came on after a day. Yesterday I made a gasket out of slick cardboard, like a milk carton, for on the gas cap and that tightened the gas cap up quite a bit and the check engine light has stayed off-so far.
Re: Code 455
Sunday, May 17, 2009 2:52 PM
The gas cap trick worked for one day and the light came back on. Back to the drawing board.
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