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PRO M EFI HELP!

  • Thread starter Thread starter Robot6565
  • Start date Start date Aug 23, 2022
R

Robot6565

New Member
Aug 23, 2022
1
0
1
Haverhill MA
Aug 23, 2022
#1
  • Aug 23, 2022
  • #1
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!!!
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
133
Savannah
Sep 1, 2022
#2
  • Sep 1, 2022
  • #2
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.
 
Z

zerolash

New Member
Dec 1, 2008
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qUEEN cITY
Jan 21, 2023
#3
  • Jan 21, 2023
  • #3
If you still have 81 harness I have an87 harness wanna trade?
 
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