Question about 2001 Nissan Sentra

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Nissan Sentra 2001 gxe with code p0420

Nissan Sentra 2001 gxe (125.000 miles). I´ve had the check engine light on for more than one year with the code p0420 (catalytic converter. About 2 months ago I reset the computer and traveled from NC to FL (1000 miles aprox). After that I drove in Florida about 300 miles and then the light went on again. What could be the problem?.

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You will need a new catalytic convertor assembly. Yours is below treshold efficiency in other words its "no good".If you have it replaced, ask the garage/dealer to give you the old one back. Its worth some cash if its full. It doesn't matter thet it failed. They are going after the mesh inside of it and that is worth some $$$$. May not be much , but better than nothing.

Posted on Jul 26, 2009

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