Im getting alarm codes 81 through 86. All six coil primary fault codes. The alarm sounds for 10 seconds when I start it and then the check engine light remains lit. The motor starts running bad around 2300rpms. I have cleaned all the grounds I can find on the coils and motor - (and they were corroded). I replaced one coil which wasnt ohming out properly. The others are in the 190 range which should be OK. The primary wires to the coils are clean and read almost 12 volts. Im tempted to swap computers between the 2 motors to see if it is a computer problem, except that one is the original air cooled and this one was upgraded to the water cooled, along with the rest of the engine. Any suggestions what to try next? 3 weeks before the local shop can look at it.