code p0420
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code p0420
he guys. thisis for a 96 z3 and it failed emmissions throwing that code.
it said catylitic system efficiency below threshold...
I've got an exhaust leak that is pretty loud...
could that have something t do with it. or are one of my cats failing and need to be replaced?
tia.
alan
it said catylitic system efficiency below threshold...
I've got an exhaust leak that is pretty loud...
could that have something t do with it. or are one of my cats failing and need to be replaced?
tia.
alan