Thread: wiring question

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A Chevy Vortec 350 truck engine has an oil pressure sender that has two circuits, one is a fuel pump open/close circuit that controls a relay for the fuel pump. We use this quite often. This sender screws into the regular sender hole at the back of the block. It's cheap. As I remember, you can also buy the pigtail connector that mates to the sender.

mike in tucson

You can pick up the oil pressure shut down switch at marine dealers too. Most I/O and inboard boat motors have them to shut down the engine if oil pressure drops. Downside is that the switches do fail, and prevent the engine from starting, but that is a somewhat remote possibility.

Don