06 Mega Cab Hemi P0420 CEL
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06 Mega Cab Hemi P0420 CEL
I have been beating my head against a wall trying to get this code to clear. I bought the truck about 2 weeks ago and have replaced both O2 sensors on bank 1. I have also replaced the plugs and tried the anti-fouler trick on the O2 sensor after the converter with no luck. It has straight pipes and I was wondering if this is the reason. Any advise would be great. Thanks.
Last edited by pugsmoore; 04-05-2011 at 05:51 PM. Reason: forgot some info.
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Well manifold bolts were good. Steel wool in the non-foulers seems to have done the trick. No CEL for about 50 mile. Just welded in my new Flowmaster two in two out muffler and was very pleased with the sound. Just not into the straight pipe thing anymore. Very nice tone. I was nervous with it being a single muffler with dual inlets and outlets. Thanks for the advise. This is a great forum and I have learned alot already.