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Old 05-09-2014, 11:40 AM   #15
69gmcc10
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Join Date: May 2011
Location: Missoula, MT
Posts: 934
Re: oh crap... P0430 code

I know it sounds odd, but take a few min to hook up a voltmeter and test your MAF (google the procedure). If the MAF is going bad it can create a rich condition and clog a cat. I replaced 2 cats before I found out it was my MAF.
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