Fuel Pump Safety Switch Wiring

Fuel pump wiring for the red circuit is generally going to carry a much higher current than the relay.

Fuel pump safety switch wiring.

Never mount an electric fuel pump in an enclosed area such as the trunk or interior space. Also in a crash your pump can continue to run feeding a fire if you don t have a way to stop it. The safety interlock circuit stops the electric fuel pump when the engine stops even though the ignition switch is not turned off the pressure switch is a single pole double throw diaphragm actuated switch. Below is an ignition kill switch wiring diagram.

I have a few questions on the oil pressure safety switch i terminal where is the best place to get power. This allows the fuel. Additionally this kit features an oil pressure safety switch to turn the fuel pump off in the. Terminals p pump and i ignition are normally open.

Terminals p pump and s start are normally closed. By using a wiring diagram for your car you should be able to find which wire is your ignition cable and determine the proper one to cut into. The diagram is color coded per circuit and only a few things may need to be said. I did some research online and found a wiring schematic.

Here s how to safely wire up an electric fuel pump using a common 40 amp iso no nc normally open normally closed relay for minimal voltage drop and an oil pressure safety switch for maximum. Basic safe electric fuel pump wiring diagram this is the basic wiring diagram for safe electric fuel pump wiring. However if you don t have a way to automatically shut off your electric fuel pump you will keep spraying raw fuel all over your hot engine and wiring. Feed the relay with 10 gage wire and place it inside the car but close to the pump.

So use a larger gauge wire for lower voltage drop. Make sure that your fuel pump is receiving full voltage from the battery with this kit. This heavy duty kit will provide a continuous supply of voltage to prevent drop off that is common with oe wiring which will protect your fuel pump from damage. The low voltage will burn up the pump after a few weeks.