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Old 08-13-2012, 09:10 PM
trox trox is offline
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Re: 2002 Z71, 5.3 had code P0135, now P0420

Sooo... what if I eliminate both CATS? I know it happens and there is some way of keeping the SES light out. On my S10 I put spark plug extensions under one of the O2 sensors and the light has stayed off. You're not obligated to answer if it might incriminate your status here. I know MT's answer. I live in a state with no annual inspection. If I sell it in this state, there's still no inspection. Just sayin...
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