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Old 08-14-2010, 09:57 PM   #24
Rudy67chevy
rudy67chevy
 
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Join Date: Jun 2007
Location: Cali
Posts: 154
Re: tune up/ mass air flow question

Quote:
Originally Posted by spudz View Post
I work at a Chevy dealership... I see this all the time... its usually with people that has a k&n air filter. They over oil it and the oil contaminates the MAF. Nothing you can do but replace it. BUT!!!!!!!!, does the truck seem like it has less power? I have seen MAF codes throw because of a clogged catalytic convertor and that will definatly cause a random missfire. Your coils and wires are fine. Delco plugs are the only ones to ever run. They are good for 100k plus.
I had a k&n in my o2.. Change back to stock, and the check engine light hasn't been on since.
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