Question about 2002 Cadillac Deville
What car do you have? That code generically means your catalytic converter is below efficiency. It could be the cat or (if your car is a 96 or newer), a secondary O2 sensor. The O2 sensor is a better stab in the dark as it's way cheaper to replace.
Posted on Jul 12, 2010
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Posted on Jan 02, 2017
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