Hi All, after some advice.
im doing a trialler build and using a D1 3.9 as my engine. I’ve tried to fire the car up and don’t get any pulse on my injectors.
As far as I’m aware I’ve not lost any earths, I’ve been through a 14cux guide and only issue I could find is my throttle potentiometer isn’t reading correct, however I couldn’t see that stopping injection? I’ve got spark, pressure to my rail, spraying brake cleaner in the intake doesn’t help either though. Any ideas would be appreciated.

 

Have you checked the relay for the Fuel Injection? You will have 2 metal covered BOSCH relays behind the passenger kick panel. Those can go bad and cause either no fuel pump or no fuel injector function. The newer style BOSCH relays are brown or black covered vs metal. DO NOT JUST USE A NORMAL RELAY.

 

Since you have spark, the distributor pick-up and amplifier are working. The amplifier provides a signal to the Coil for spark, and also to the ECU to trigger the injectors. Those wires meet at one of the coil terminals. Maybe double check the wiring there.