87 Grand National. OEM ECM needed, I'm going back to the oem ecm. Selling my XFI 2.0 ECM needs to come with the CALPACK I don't have my original ecm to swap it out. Hopefully someone has one they're looking to sell. You can message me or call
352-409-2706 Todd.
Can anyone tell me: The C1 ECM (larger plug) on my 87 GN has an unknown wire in it at the D13 position. According to the schematic I have this position is supposed to be empty. It is definitely not factory installed and is not run with the regular harness and it is not hooked up to anything...