|
Sounds like the pump is getting power.
The oil pressure sensor is used as a ground and the +ve wire to the coil is used as power.
Both of these feed a relay, which then feeds the pump.
The idea is that a normally running engine has good oil pressure, so the oil pressure sensor will be at near ground.
After an accident the engine will stop running, oil pressure goes down, the sensor effectively disconnects ground from the relay and the pump stops pumping fuel all over the road if the accident split the fuel line.
During cranking, a wire goes from the switch START position to the relay to override the relay (which is not yet working due to lack of oil pressure).
I suspect the override wire for starting is not connected.
The Haynes manual has a good wiring diagram at the back for the '77 which matches your '76 for the fuel pump.
- Stepho
|
