K75 wiring puzzle
I have dropped a k75 engine into a small car.
I have done the engine wiring as much as possible using the fuel injection control box, ignition control box, the fuel injection relay, separate fuel pump relay. I have used a standard blade fusebox and also an inertia switch in case of an accident to shut the engine and fuel pump down.
I have just spun the engine over and it's not trying to fire. I disconnected the fuel pump supply (as it was wurring and drowning everything else out) turned the ignition switch on and heard the fuel pump relay click in, but not the injection relay. I removed the relay and tested with my test probe and it clicked. So i checked all wiring to the relay and everything checks out apart from the Yellow/brown wire (which I assume is earth to the ignition unit)
This wire tests ok to the ignition unit. I decided to test all the brown cables coming out the ignition box and found one with no continuity. This brown is next to a blue/black cable in the multi-plug.
Would this loss of continuity on this brown wire explain the lack of the relay clicking in?
let me know what you think.