P0420/p0430 Permanent codes stumped
Hey yall,
I’ve been doing drive cycle after drive cycle to clear these only two codes I have left after long tubes install. My question is in hpt can I set the DTC to no error reported and leave the ses enabled box checked? Will that help or do nothing for me? I’ve set the tune back to stock and ran it for the last 300 miles and it’s done nothing. They are preventing me from passing emissions and I’ve searched the forums with no luck so any help I can get is much appreciated y’all thanks!
2016 Camaro SS
Kooks Longtube Headers with green cats
MBRP cat back
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