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Thread: 2003 22v Wont Start or Turn over

  1. #16
    Join Date
    Mar 2016
    Posts
    304
    Boat
    Tigé
    I will send you one sometime today. Shoot me a message with you email address.

    The red wire from the ECM to battery was on the port side, bundled up by the exhaust manifold. Then it went straight to the battery. This was on '05 or so model marine powers and I cannot recall if the '03 was that way as well.
    It's dangerous to go alone! Take this.

  2. Just a quick update I've talked to mechanics, tige, and marine power about my issues and all say it's a voltage / grounding problem. They all have been super helpful with advice and schematics, but after testing rewiring all grounds I still have the same issue. I did find out that what I thought was the high pressure pump of my lower pressure fuel pump and both pumps do come on once the ignition is turn on to pressure up. This is the only thing I get from the engine along with the constant beep from the RPM gauge.

    Ive cleaned and re-grounded ever ground on the engine / ECU harness and all power is good. My next step is to tear apart mine console wiring and possibly send off the ECU to get tested.

  3. #18
    Join Date
    Feb 2016
    Location
    Boise, ID
    Posts
    808
    https://marineenginedepot.com/MP/mar...essories/2000/

    I think your ECM is at the bottom of the page for 129$ if it comes to that. Wont kill you.

  4. #19
    Join Date
    Mar 2016
    Posts
    304
    Boat
    Tigé
    Issue isn't at the console if you have power at the purple wire and at the yellow/red wire (when turning key to start) at the 10 pin connector. Validate you have power on those two wires at the 10 pin before you go digging into the dash.

    Power comes from the 10 pin to the ignition key set. Then power back to engine goes from key (purple wire) through the kill switch then back to the engine at the 10 pin. The yellow/red gets momentary power from the red wire at the key switch, which goes back to the 10 pin for crank request.

    If you have all of that, its on the engine side which could be a relay, ecm, fuse or lack of power to the ECM (if it has the separate red wire).
    It's dangerous to go alone! Take this.

  5. I have 12volts on the purple Ignition wire, the yellow/red in crank posision and ground from console thru the 10pin and into the engine harness. All three fuses are good with 12 volts on the engine harness. I've also moved the four relays around with no change of state. I do have four relays on order and marine power told me to ground high pressure pump directly to the engine block for a better ground.

  6. #21
    Join Date
    Mar 2016
    Posts
    304
    Boat
    Tigé
    Good! Leave the dash/console alone then :-)
    It's dangerous to go alone! Take this.

  7. thanks will do.

  8. After weeks of more troubleshooting I finally ship Marine power the ECM and was to told that it was not communicating and most likely damaged from lightning or some type of voltage spike. This boat has not been outside since it was last used and nothing else in the boat is damaged including the four amps.
    My next step is to send it to OBD repair in California to see if they can repair it unless anyone has a place they recommend.

    At this point I'm just trying to safe from having to drop $1000 on a new ECM from marine power. The ECM is a MEFI-5A and would entertain the idea of a used unit if anyone know anyone with one or sale.

  9. #24
    Join Date
    Oct 2013
    Age
    54
    Posts
    323
    Boat
    '09 22Ve no ballast, yet
    Is it possible that the key/ign switch was on when you connected the batteries?

    When you connect wires to the battery post the small spark can be 10ks of volts and damage stuff. When designing ECUs we had specific requirements for this. The problem is both the size of the spikes and the length of the bounce (in time), the longer the spike the harder it is to protect for...

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