Quote:
Originally Posted by shishka
Sorry, the recent codes were different. P0420 and P0430 ("Catalyst System Efficiency Below Threshold" at Bank 1 and Bank 2). He said it's unlikely that both sensors went out, which makes sense.
Gotta be air/fuel mixture...?
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Yes he is right it is unlikely both went out at the same time. If it is a issue with air fuel ratio it should be throwing a different code saying rich or lean. I suspect either electrical issues with those sensors or maybe (even though unlikely) both cats went out. I agree with trying to take it to a different mechanic maybe he will know.
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Stillen G3, z1 Intake Manifold, Stillen Headers, Z1 HFC's, Stillen Catback. 330whp 267 ft- lbs tuned at Z1 motorsports.
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