Something is obviously wrong in my wiring as I have no fuel pump or spark when cranking. Fuel Pump turns on when jumped. Whole ignition system acts like its in accesory as soon as battery is plugged in( and its not the ignition switch Iruled that out). 1989 e30 with m50 obd1 car
What "turns on" the ecu? Id like to verify ecu power but having a hard time finding what tells it to kick on.
What "turns on" the ecu? Id like to verify ecu power but having a hard time finding what tells it to kick on.