Engine service light

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02-06-2010, 12:51 PM

gmbwrenchn

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Join Date: Mar 2008

Location: WI.

Posts: 109

gmbwrenchn is an unknown quantity at this point

Engine service light

Engine service light just came on. It's flashing. I know I have to pull the code. Just want to know what this code may be. I've never had a light come on and flash. Possible problem would be? Thanks.

02-06-2010, 12:56 PM

swartlkk

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Join Date: May 2005

Location: Waterloo, NY

Posts: 41,151

Flashing CEL is typically a misfire code. Check the P030x thread in the OBD2 Code Index accessible from the link in my signature.

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