Camaro Z28 V8-305 50L VIN F FI (1991) Oil Pressure Switch Location
Oil Pressure Switch (For Fuel Pump): Testing and Inspection
Wiring Diagram For Fuel Pump Relay
The oil pressure switch is mounted on the engine. This switch operates as a parallel power supply with the fuel pump relay to supply battery voltage to
the fuel pump. Voltage is supplied to the fuel pump after approximately 28 kPa (4 PSI) oil pressure is reached.
