Sorry but i'm a little confused with all that OFAC and OFAB talk.. My car is a Escort '91 CVH EFI with the EEC-IV ECU and EDIS system.. Have some old pics of the engine-compartment..




Is my current ecu the ofac or ofab or is it only the FRST ones that is called that? Sorry for dumb question, just trying to figure out if it will work..

As for the ACT is it the same threading? Just remove the old air temp and mount the ACT? The wiring system is included so i could cut the connecter and solder together...

I just thougt that the wiring system were nearly the same os mine og just could change the ecu box... As I have understood it isnt?