OK, that is not an 0/2 sensor problem. That is a catalyst efficiency code. 99% of the time, this is a bad catalytic converter. If you have already changed it and are still getting the code. Look for an exhaust leak ahead of the cat or you just used the wrong converter. Many of the aftermarket converters just don't do the job in place of OEM Cats. There is an outside chance of the 0/2 causing this but it's highly unlikely
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Monday, December 13th, 2010 AT 11:55 PM