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2000 Nissan Xterra SE 4dr 2WD V6 Manual

2000 Nissan Xterra
Trim Info:
Rear Wheel Drive, 4 Door, 2WD Sport Utility
17 mpg city / 19 mpg hwy
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October 30, 2012, 12:24 pm

Brandy W

Question: Car consistently pulling a P0430 code - not sure how to fix it from here. Help!

My 2006 Nissan Xterra (approximately 110k miles) is pulling a P0430 code. I've hooked it up to a computer and determined the engine is running lean. I've hooked up the air system to a smoke machine and found no leaks. I put richer fuel in it and injector cleaner - got the CES light/code to go away long enough to pass emissions (according to the test reports, the Catalyst passed, leading me to believe that it is not the Catalytic Converter). I did pass emissions, but the code did return. Only having problems with a code on the Bank B cat, not the Bank A cat. Any suggestions on what to check next? Thank you for your help!

November 3, 2012, 10:28 am

Richard W
Expert Mechanic

You need a new cat on bank B. The sensors are passing there test. So the cat is not. You need a new cat.

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