PRO M EFI HELP!

Robot6565

New Member
Aug 23, 2022
1
0
1
Haverhill MA
I have an 87 5.0 that I purchased a 449ci Windsor (351) that has a PRO M EFI system with coil on cylinder option and MAF.
Im having trouble tying Pro M system into my 87 ,since it came out of a 91. Pro M sells harness to you for your year as a plug and play.
They are not very helpful with tech support and keep telling me to buy a new harness from them if im not capable of making the one I have work.
Engine has a capless distributor that is just used as a trigger. Im so close to making it run . I believe the trigger output from distributor is the key. Distributor has red,black, blue wires.Blue being trigger out ? PIP? Pro M wont give me a wiring diagram for their computer and I dont know where to conect this wire. Factory engine harness is removed. I get spark and fuel, MAF is connected, as well as TPS etc.........PLEASE HELP ME!!!
 
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Do you have the computer program to tune their ecu?

It’s tough to tell without some sort of a wiring pin out, which doesn’t really make sense that they won’t provide one.

The corral forum has a dedicated sub forum that’s pro-m efi only. It might be worth posting on there.