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  1. #1

    Motec problem fzr need help

    I just bought a 350hp FZR kit from watsons racing which uses motec plug in and play. I fired it up last night and its only running on 3 cylinder. Cylinder 2 doesnt seem to be getting any spark. New plugs swapped them around, changed coils and still end up with it running on 3 cylinders.

    I've double checked the wiring loom. Any one have any idea what might be the problem.


  2. #2
    MoTeC Pete's Avatar
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    Quote Originally Posted by gtease View Post
    I just bought a 350hp FZR kit from watsons racing which uses motec plug in and play. I fired it up last night and its only running on 3 cylinder. Cylinder 2 doesnt seem to be getting any spark. New plugs swapped them around, changed coils and still end up with it running on 3 cylinders.

    I've double checked the wiring loom. Any one have any idea what might be the problem.
    Hi
    Sounds odd
    Coils are a bit fragile that much I know
    Other than that not aware of any other obvious possibilities
    If it has no spark on one cylinder and its not the coil then wiring is all thats left
    There is a signal wire that goes from the ignition out put of the ECU to the coil, you can check that using the diagram in the PWC manual
    You could also do an output test
    Power the system manually with the power up wire then goto ECU manager and Utilities, test outputs.
    You should be able to check all the injectors and coils like this

    Did anything preceed this happening, this may give me a clue

    Let me know the results

    Regards


    Pete

  3. #3

    Unhappy

    Quote Originally Posted by MoTeC Pete View Post
    Quote Originally Posted by gtease View Post
    I just bought a 350hp FZR kit from watsons racing which uses motec plug in and play. I fired it up last night and its only running on 3 cylinder. Cylinder 2 doesnt seem to be getting any spark. New plugs swapped them around, changed coils and still end up with it running on 3 cylinders.

    I've double checked the wiring loom. Any one have any idea what might be the problem.
    Hi
    Sounds odd
    Coils are a bit fragile that much I know
    Other than that not aware of any other obvious possibilities
    If it has no spark on one cylinder and its not the coil then wiring is all thats left
    There is a signal wire that goes from the ignition out put of the ECU to the coil, you can check that using the diagram in the PWC manual
    You could also do an output test
    Power the system manually with the power up wire then goto ECU manager and Utilities, test outputs.
    You should be able to check all the injectors and coils like this

    Did anything preceed this happening, this may give me a clue

    Let me know the results

    Regards


    Pete
    I have found the problem, one of the new injector plug connectors wasn't getting good continuty. I had to cut the OEM plugs off and put new plugs on with the new injectors.

    We held it it there and it ran fine so I have to find a new plug

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