Oil Pressure Shut Off Switch Wiring Diagram. Im trying to hook up a holley 12 810 low oil pressure shut off switch for my electric fuel pump to msd. Well i dont even think the starter solenoid terminal has a wire to the switch on it and when it died in the water all of a sudden the two wires i took off.
Can any one help with a wiring. Oil pressure differential normal oil pressure is between 105 and 42 bar higher than crankcase pressure. You have the no and nc on your drawing reversed along with the 85 and 86 terminals on the fuel pump relay.
The voltage signal is sent to the pcm and then to the cluster to the oil pressure gauge.
The carter a68301 pressure switch is a single pole double throw diaphragm actuated switch. Oil pressure switch oil pressure switch 03 bar fuel gauge sender coolant shortage indicator sender control unit with display in dash panel insert oil pressure warning lamp coolant temperaturecoolant shortage warning lamp 28 pin connector on dash panel insert earth connection 1 in engine compartment wiring harness gm 2. Its there to provide backup power to the pump in case of ecmfuel pump relay failure. That truck i know would shut down the fuel pump when the oil pressure switch went kaput.