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    2001 Mercruiser 5.7 EFI poor power

    Thanks, I went ahead and ordered a new coil, sensor, and cap and rotor. Figured as long as I am back there, I should have everything available to replace.
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    2001 Mercruiser 5.7 EFI poor power

    I did find the actual S/N 0M081724
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    2001 Mercruiser 5.7 EFI poor power

    It is 5.7 TBI open cooling 5.7L EFI GM 350 V-8 1999-2001 - 0L325977 THRU 0M299999 Parts breakdown shows the ECM is a 861925T3
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    2001 Mercruiser 5.7 EFI poor power

    They are manufactured long blacks, so no real s/n. Fouled plugs wouldn’t make the inductive timing light skip firing thoug, would it?
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    2001 Mercruiser 5.7 EFI poor power

    I have a 30' cruiser with twin 5.7L EFI Mercruisers, new long blocks with approx 150 Hrs on them. One engine performs just fine, the other when trying to get up on plane, it is only getting 2800 RPM until the other engine gets it up on plane enough at 4800 RPM then it will get 3200 or so. Both...
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