how did I do something wrong? Can I ground it to the wire that goes to ecu as ground?
When I swapped dashes from an 89 gt, I didn't use the dash harness for the alltrac instead using the one from the gt. I threw away the intercooler ecu because I obviously no longer have a plug going to the intercooler ecu anyway, because of the dash swap.
So I decided I could take that wire going to the ecu, light green/black wire to ground on chassis. I also have pulled the efi ecu with no luck still.