what is catalyst efficiency below threshold bank1 an where is that located

Asked by Giggy Nov 29, 2013 at 01:07 PM about the 2000 Mazda Protege LX

Question type: Maintenance & Repair

1 Answer
480

Iambobby answered 10 years ago

Your catalytic converter is bad. Bank one is closest to the engine, after exhaust manifold

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