code P0420
my 2003 Volkswagen beetle is throwing a code of P0420 which is catalyst system efficiency below threshold bank 1. Do have to change the catalytic converter or would it be safe to try to clean it?
my 2003 Volkswagen beetle is throwing a code of P0420 which is catalyst system efficiency below threshold bank 1. Do have to change the catalytic converter or would it be safe to try to clean it?
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