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2002 Nissan Altima Question: Starting rough.



, 2.5L 4 Cylinder, Fair Oaks, CA, June 24, 2010, 15:50

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.

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  • Answer #1

    June 24, 2010, 16:06

    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.


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    , December 07, 2010, 18:55

    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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