I have an
oil pressure cutout switch on my car.. The engine will crank until the
oil pressure comes up and then the switch will set the fuel pump relay. The switch should be located at the
oil pressure takeoff point on the block. So when there is no fuel pressure it will not start....until you've cranked the oil pressure up. Also if you run out of oil the motor will stop.. If you crash and stall the fuel pump will stop as soon as the oil pressure drops.