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  1. #1

    Arrow Starting and Only one cylinder sparking

    Guys, I thought I had an issue with my bendix which was preventing my ski from starting. Further troubleshooting determined only 1 cylinder is firing. I moved the coil packs and plugs around and they all worked in cylinder number one only. The fuses tested good and there are no error codes. I also tested it with my Candoo system and all three plugs fired when that cylinder was pressed as expected. My question is does this sound like an ECU issue or could it be a stator problem.


  2. #2

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    Do you get spark on the other cylinders with plugs removed and cranking over? If so you may have an issue that is not related to the plugs. Injectors maybe?

  3. #3
    The only cylinder firing is cylinder one. When I test it with my computer, I can get all three to fire. I assume it is the cps sensor, the trigger or in the ECM. I tested the sensor and it is good. I plan to inspect the trigger unless there are other ideas.

  4. #4
    Got Boost? psycho rxp's Avatar
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    What year, and model, is this on?

  5. #5
    Got Boost? psycho rxp's Avatar
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    I had weak spark, due to all 3 coils firing but weak (bad) and the ECU was also bad.

    Try 3 new, or known good coils from another ski first, to rule that out.
    and of course brand new plugs.

  6. #6
    The ski is 2006 RXP

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