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Old 07-06-2020, 08:39 AM   #1
GhostOutlaw
 
Drives: Black 2011 2LT/RS
Join Date: Sep 2010
Location: NJ
Posts: 268
Constant P0420/P0430

I've replaced both cats, all the sensors, I use top tier fuel, there's a catch can in place and I STILL ****ING THROW P0420/P0430 randomly. I clear it and it usually goes away until the next fill up.

I'm at the point I'm thinking a cat delete, both myself and my mechanic don't know what to do.

Anyone else have this?
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