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  1. #1

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    riva ECU, new vs old.

    can i use a riva ECU that is normaly used for 04-05, in a 07 rxp?
    whats the difference?

    Magnus from Sweden


  2. #2
    Site Admin Green Hulk's Avatar
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    You can't, you must use the 07 ECU specific for your ski.

    The reason is the 04-05 skis had an MPEM, your 07 doesn't and the ECU picks up all of the functions that the MPEM used to handle.

  3. #3
    Site Admin Green Hulk's Avatar
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    By the way, welcome to the forum

  4. #4
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    Quote Originally Posted by mageri View Post
    can i use a riva ECU that is normaly used for 04-05, in a 07 rxp?
    whats the difference?

    Magnus from Sweden
    Nope the 04-05 ECUs are not compatible with newer wiring harnesses, it has to do with the MPEM units in the 04-06 4-tecs. Your 07 does not have a MPEM(Sea Doo moved the MPEM functions into the ECU in 07) you can however use an 08 ECU on an 07(and vice versa)

  5. #5
    Avion3333's Avatar
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    welcome to the forum

  6. #6
    now here's the million dollar question (for how much it costs to do this) how about updating a 2004-05 to a 2007 wiring harness so you can run the 8800 ecu? Obviously the wiring harnesses, I remember something about the crank/flywheel dowel pin being in a different place on the crank, and I believe more or less sensors on the engine?

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