Thank you for your response. I swaped out the coil , ignition coil, spark plug wire and plug. I performed continuity check from ECM to the drive coil ( 4 pins 2 pins ), continuity check from drive coil to ignition coil. I also switched wiring from 1-3 drive coil to 2-5 drive coil hoping that if ECM is bad my 1-3 cylinders would fail but that was not the case , 2-5 cylinders failed again. I did ohms test and found the reading within spec ( Service Manual ). I have had a bad experience with a local Merc service rep where I live. I have back ground in outboard motor, worked for my dad who was a part owner of a boat dealer. Currently serving in the Army as Diesel mech for over 18 years. The merc mech is telling me it would be best to repower ( Assuming because I told him it has over 1800 hrs on the motor) and purchase one of his used motor, this is without even looking at my motor. I paid another dealer for an hour worth of work to have my motor hooked up to DDT but that didn't help any because no fault or error were found. This weekend I will swap out 2 and 5 air and injector with 1 and 3 and see if 1 and 3 will fail?? Running out of idea. BTW, talked to Merc directly from the factory in Fond Du lac and I'll quotes him " Make sure I have 1000Amp battery and use only Merc parts" REALLY ???