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International Automotive Technicians Network
Re: Cleaning primary convertor debris from secondary convertor
Posted to Technical Theory Forum on 6/3/2021

The seller knew the problem and dumped it. The sparkplug anti-fouler was added to prevent an P0420 code. If NH is like the surrounding States, they take emissions very seriously...

If it is not too late he may want to discuss this with the dealership IF they... Login to read more.