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Motor wont start suspect ECU needs replacing ?

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  • Motor wont start suspect ECU needs replacing ?

    Hello I'm writing on behalf of a friend who's been told by his French boat yard that his fourwinns day cruiser is not fixable Following a flat battery, the cables were crossed when jump starting. Smoke and flame observed.
    Before giving up I thought I would try this forum to see if anybody can help with the following questions.
    The Ecu unit is apparently broken.
    1) Can the ECU be tested ? Might a Volvo penta agent have a test rig?
    2) Is there a diagnostic connection?
    3) Does the ECU hold a memory of problems?
    4)What other components could have been damaged and might they harm a new ECU if we replace it?
    5)What manual would you recommend?

    Year of boat 1998
    Engine Volvo penta 4.3di

  • #2
    I should that the motor engine turns over perfectly well with the starter but wont fire

    Comment


    • #3
      Howdy
      The ECU can be tested and if you were in the USA I would suggest talk to Bob at OBD Diagnostics. In any case even if the ECU is unfixable, it can be replaced

      https://www.summitracing.com/parts/pfn-sp1400/overview/
      94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
      95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
      07 Seadoo GTX
      Merc Adults Only VP Adults Only
      G-Dad always said "First Liar doesn't stand a chance"

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      • #4
        Hello
        Thanks very much for your message Alas we are in France but as you've told me that ECUs can be tested , I'll check out here if it's possible

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        • #5
          Just noticed I put a summit racing link and not OBD

          https://obd2allinone.com/ecmrepair.asp
          94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
          95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
          07 Seadoo GTX
          Merc Adults Only VP Adults Only
          G-Dad always said "First Liar doesn't stand a chance"

          Comment


          • #6
            Great thanks I will send your link over to my friend . This could be a cheaper solution depending on shipment to the US

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            • #7
              Sign up today
              I think I would also replace the ignition module in the distributor base. Its something key to the ignition operation and although I have never crossed the wires myself, it seems like something that could get screwed up in that scenario.

              An easy test would be to check spark. If there is no spark then that module is high on the list as a source of that trouble.

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