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  1. #1

    04 RXP running on 1 cylinder

    no spark to cylinders 1 and 2
    coils are plugs are good
    any suggestions??


  2. #2
    Resident Jicky Jack Jeff C's Avatar
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    If your getting spark on all three (By the way how did you test this?), it has to be a fuel delivery problem.

    And since one of the cylinders is getting fuel, I would look at the injectors themselves. Try and swap the good injector into one of the bad cylinders and see if the problem goes away on that cylinder.

    You might want to check your fuel pressure, but that seems to me to be not the cause, as the good cylinder would miss as well........


    There are guys on here that can help you.

    I will bump this up for you

  3. #3
    check the injectors, replace the plugs even if they look good......they can go bad internally.................unless you have the B.U.D.S. software it is hard to test the components individually

  4. #4
    Got Boost? psycho rxp's Avatar
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    also check your fuses, for those ignition coils in the MPEM.

  5. #5
    Quote Originally Posted by rokmon View Post
    no spark to cylinders 1 and 2
    coils are plugs are good
    any suggestions??
    It's impossible to run on just one cylinder on a 4-tec so it must be running on at least 2.

  6. #6

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    Quote Originally Posted by RXP6 View Post
    It's impossible to run on just one cylinder on a 4-tec so it must be running on at least 2.
    Ditto!

  7. #7
    I've ssen them run on one cylinder.........hooked it up to buds.......killed cyl 1.....no change........killed cyl 3 no change........killed cyl 2 and it shutoff......now it wasn't running well by any means but was only firing on one cylinder

  8. #8
    ski is running very rough , only up to 3000 rpm
    I disconnected the connector to cylinders 1, 2 and 3 one at a time
    and found that cylinder 3 was the only one running
    then I swapped the coil from cylinder 3 and cylinder 2 to test it
    and it worked fine, I did the same for coil #1
    so I'm sure its only running on one cylinder
    just found an error code P1509 , could that be causing this condition??

  9. #9
    cbrich's Avatar
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    Pull off the valve cover and make sure the valves are moving.

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