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  1. #1
    Water4fire's Avatar
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    Anyone have any coil issue's before?

    What is it that the motor will do or act like when a coil is going bad?

    .


  2. #2
    fh23rxp-x's Avatar
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    May 2008
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    Miami
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    i had a coil problem bofore and everytime i punshed it will sputter

  3. #3
    dduck dduck1628's Avatar
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    Apr 2007
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    St Augustine FL
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    623
    Same here, idle good. Would skip when I would pull the throttle back hard. I could ease into it and it would accelerate fine. A shade tree way of checking is the pull one at a time, pull a spark plug into it and lay it on the valve cover. Crank the engine, if it arcs through the side to the valve cover it is bad. The one I found bad arced through a crack on the side.

  4. #4
    It will sputter at idle and acceleration. To check it, you can also just disconnect one coil pack at a time. If the engine runs worse, that means that coil is firing. And if runs the same , its most likely that coil or cylinder. If you do find that one that doesnt change the idle,swap that coil around. If it misfires on that same coil you swapped, its the coil. If it didnt change, and its still misfiring from the original spot, you probably have a bad spark plug

  5. #5
    2Blue's BFF! dsolie's Avatar
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    Apr 2007
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    Olympia, WA
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    Austin,

    I have some spare used coils from Reg's ski here if you need.

  6. #6
    BTW we're working on some MSD High Output Coils for the 4-tecs.....I'll post more about them when they're ready.

    - Armin

  7. #7

    Join Date
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    Quote Originally Posted by novaprop67 View Post
    BTW we're working on some MSD High Output Coils for the 4-tecs.....I'll post more about them when they're ready.

    - Armin
    Please keep me posted.

    Thanks,
    Glen.

  8. #8
    Richieb's Avatar
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    Quote Originally Posted by novaprop67 View Post
    BTW we're working on some MSD High Output Coils for the 4-tecs.....I'll post more about them when they're ready.

    - Armin
    And me to if you would please.

  9. #9
    Quote Originally Posted by Richieb View Post
    And me to if you would please.
    I've already got the test coils here and pre wired. Initially they didn't work, now with the change we made I think they should work....so now I'm just waiting on one of the test boats to be freed up to try them out.

  10. #10
    Fast & Loud meeper's Avatar
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    why hasnt anyone run the AEM pencil coils, they are a direct bolt in just a little diff in body length

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