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PCM conversion from direct drive to Z drive problem

phildanh

New member
"Hi
A friend purchased a PCM


"Hi
A friend purchased a PCM proboss GT40 formerly used in a ski boat with direct drive.
He hooked it up an OMC drive witrh Z Drive and cannot get it to shift in forward or reverse. The gears grind as the rpm will not drop. We're told there are 4 wires to invert into the engine ECU. Can anyone please help us with a schematic, photo or other. The boat is in Europe and the local PCM distributor has no idea what to do.
Thank you for your help."
 
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