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    Ignition Problem w/5.7 Merc. MCM 350 MAG MPI

    :confused: Donzi fuel injected engine cranks but will not start, 12V on + side of coil, but no fire to distributor. No code check done. Changed coil, engine started but next day would not start. Same scenario: 12V on + side of new coil, etc..... Suspect ECM module but cost prohibitive to...
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