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2005 Nissan Altima Question: what would cause no fire to cylinder 4 to my nissan altima 2.5L engine?



psa, 2.5L 4 Cylinder, Eagle Pass, TX, July 28, 2012, 17:38

I have replace both crank and cam position sensors,placed injectors, replaced spark plugs, and swap coils and I still have no fire to cylinder #4.

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  • Answer #1

    Greg's Orange Auto (15202 Answers) , Orange, CA - (714) 361-9386
    globalhelper July 28, 2012, 18:39

    poss computer issues do you have any other code than po304. you may need to seek diag on this

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  • Answer #2

    July 29, 2012, 02:25

    Have you checked for ignition fire with a spark tester hooked to the coil to see
    that there is no spark? How much comperssion on #4? Injector pulse ok when
    checked with noid light? Coil feed circuit&connector ok?

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