2002 Nissan Altima Q&A

2002 Nissan Altima Question: Starting rough.

The check engine light came and the code p303 I change oil ,spark plugs.The light went off but the car is starting rough .Not a clue what it could be. -
Answer 1
crank sensor is common failure for hard starting. did you check the coils??? a real diag would have pinned down your problem. you may have damaged the cat conveter with the engine missfires. Roy -
Comment 1
payed over 300 for a diag and i got it could be the fuel injectors but gess what its not know I have a different code p300 . -
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