My motor is currently running on 3 cylinders. Compression test good, Spark test good, and fuel pump test good. Mechanic believed the issue to be the EFI ECU. Replaced ECU but still 3 cylinders down. Not sure what to look for next. Any insight would be appreciated.
reeds inspected ?????
.................................................. ...the scariest thing in life is the unknown ...................................
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WHICH 3 cylinders are down?
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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