1991 PCM 351 Coil lead diagram

[Lamby]

Hello from Queensland Australia. I have a 1991 Ski Nautique with a PCM 351. I have recently rebuilt the motor and have tried to start it last night but it will not fire. My buddy took the plug leads of and marked the coils when we pulled it down but we think he has marked the coil packs wrong. Does anyone know the coil to plug lead locations or is there a diagram on here. Thank you All Cheers

[Nautiquehunter]

Purple to the positive side of the coil . Gray to the negative side There is also a wire coming from the distributor that goes to the negative side .

[Jonny Quest]

The OP states "coil packs". That leads me to believe that this is a ProTech engine. As such, his engine is not the typical distributor configuration. I can't help you much with your question as I removed the ProTech system (with coil packs) from my engine and replaced with an HEI distributor (integrated coil).

Perhaps if somebody is still running a ProTech engine, you could post a couple of pix.

JQ

[Nautiquehunter]

I didn't think Pro Tech came out until after 93. A picture would help to get the right info.