Mechanics

NISSAN ALTIMA VACUUM LEAK PROBLEM

2005 Nissan Altima • 126,000 miles

My 2005 Nissan Altima keeps giving PO302 code. I've changed spark plug, coil and harness connector. Whenever I change something, the problem goes away for about a week or two, then returns. WTF!
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KnightVision
March 28, 2013.



Could be compression, vacuum leak, which is common on this model, faulty injector or wiring.

The vacuum leak is from the intake manifold gasket.

Roy

ASEMaster6371
Mar 28, 2013.