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  1. #1
    Xspook's Avatar
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    08 GTI se 130 low idle rpms

    Hi,

    My GTI recently starting running rough with erratic rpms and had a max speed of 37. I replaced the plugs and for good measure, the battery.

    I got in the water last weekend and it's running much better, but it died a few times after going from full throttle to idle. Every time I do go to idle, it seems to go too low on rpms, shudder slightly, then readjust. It had been doing this before but it seems more consistent now.


    Ideas?


  2. #2
    rangermtb5's Avatar
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    How old is the gas?

  3. #3
    Xspook's Avatar
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    Gas should be good, as I ride 2-3 days a month, about 60 hours a year. So, this has been occurring over several tanks of gas.

  4. #4
    wotxxxsd's Avatar
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    Tps might need reset.
    Throttle position sensor.

  5. #5
    wotxxxsd's Avatar
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    Cool

    60 hrs per year so you have 360 hrs?

    When is the last time you ran fuel injector cleaner thru it?

  6. #6
    rangermtb5's Avatar
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    how many actual hours on it?

    spark is good on all 3?

  7. #7
    Xspook's Avatar
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    The actual hours on this machine are unknown.

    It was bought used about 1.5 years ago from an independent dealer. The hours were at 0 and the dealer stated "we had to replace the electronics" and that supposedly explained the 0 hours.

    I suspect it may have been a rental, as the speedo was never activated or was deactivated. Also, the water temp does not work/display.

    And for some reason, the OPAS fins have been removed.

    I have put 95 hours on it since purchasing and have generally had no problems.

    I have not run injector cleaner.

    I did replace oil/filter/plugs at 50 hours. Plugs were just replaced to combat the erratic RPMS and seems to have fixed that issue.

    I do ocassionally ride in the ocean, but it's thoroughly rinsed and lubed after every ride.

    Regarding the TPS, is that something I can reset, or must it be taken to the dealer?

    Could a worn throttle cable becausing problems as well? It looks OK, but it gets just a bit sticky now and then.

    Many thanks for all the assistance!

  8. #8
    wotxxxsd's Avatar
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    The display not working means the dealership didn't marry the guages to the ski/ecu when they put new guages in.
    Check your coil packs for cracks and connection points.
    Tps is something the dealership has to check/reset a candoo or seadoo computer is needed.
    A stickey throttle cable is not good and could be a reason for higher idle.
    Have you checked your compression #s?

  9. #9
    Xspook's Avatar
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    Got it in the water yesterday and put about 2 hours on it. It generally ran well, but the low RPMs persist; although it never totally died. It will drop to about 1200 and then readjust upward to the 1800~2000 range.

    I have not checked compression; don't have the tools for that.

  10. #10
    wotxxxsd's Avatar
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    Compression guage is @ $40 at any auto parts store.

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