So I got an 86 FC with a blown motor (and a truck load of spare parts) for $200.

Swapped in one with good compression from a running car.


Everything is in, the car has spark and great compression, fuel is getting to the rail the pump is strong.

There is power to the ECU and power at the injectors. The ECU just isnt switching on the ground (firing the injector)

I've bench tested the injectors, they operate correctly.


I've tried a second ecu, same deal.


Not sure where to go from here. Where does the ECU ground the Injectors too?

Also is there a pin out diag? I'd like to trace the injectors back to the ECU


thanks guy

 

Also there are some extra connectors around... cant see where the go


A green one wire behind the alternator?

Black connector by the ECU from the BODY harness

Connector (a ground?) looks like its comes off the fuel filter or fuel filter area.

thanks

 

Im having the same problem.

 

bad harness?

 

hit the nail on the head there buddy. The harness connectors at the injectors weren't touching the injectors solidly. Some new injectors clips and she fired right up!

 

we need pics to say for sure

 

now it seems like the "good motor" has horribly blown coolant seals! F- me