| OK, I def. did not have a cat converter. When I went to straight pipe all I had was the monsterous muffler, not cat.
I am pretty sure that the MAF is ruined, but I will try to clean it with the right stuff.
Thanks for all the timely replies. I am gonna email you Mr. Meyers, I have some questions about EFI.
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2002 GMC 2500HD Crew Cab 4x4
68,000 miles
K&N Air Filter, 4" Silverline Exhaust w/ 5" tip
Tuning by Duramax Tuner
Speedliner on bumpers and bedrails |