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Thread: Missing and shutting down.

  1. #1
    Junior Member
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    Angry Missing and shutting down.

    Hallo everyone.

    My 2007 xb 12 Lightning is stopping for no reason.
    It started to miss a few weeks back when getting hot.
    Now it shuts down, and won't start again until it has cooled off.
    Fan is working correctly, and no fault codes present.
    Have changed the fuel pump and filter.
    The problem seems to get worse, but only happens when the engine is hot.

    Hope someone has any ideas.

    Cheers Paul

  2. #2
    Senior Member Cooter's Avatar
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    A bad CPS does that.

  3. #3
    Junior Member
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    Thanks I'll try that.
    But shouldn't the ecm log a fault code?

  4. #4
    Senior Member Cooter's Avatar
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    Not necessarily. Your Buells FI tech was designed well more than 20 years ago, and was very rudimentary even back then.

    Besides, all "codes", even today, were never meant for blindly replacing parts without any further diagnostics.

  5. #5
    ECM going bad?

  6. #6
    Junior Member
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    Sadly it seems to be impossible to get a new CPS for my model.
    Someone sugested to try from an earlier model, but it not always works.
    Would like to hear from anyone that has tried that.

  7. #7
    Senior Member Barrett's Avatar
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    CPS tested? Doubt you need one.

  8. #8
    Senior Member DieterVonCunth's Avatar
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  9. #9
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    Any idea how to test the CPS ?

  10. #10
    Senior Member Cooter's Avatar
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    If you wanna be a mechanic, you'll need this.

    http://buellmods.com




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