How does it work? It starts at the sender with 1 wire when you get to the gage you have 3 wires, mine pegs out when you turn the key on same thing when running. HELP this is 91 stock mustang. Thanks Mike
Mine in the spec car does the same thing. We'll have to wait for the electronic gurus to repsond. The three wires at the gauge end I believe are ground, pos feed and sender. Bob
I had my gauge hooked up to a "light" sender. With key on the sender grounds until oil pressure un seats it. For a gauge you need the bigger sender so pressure will register on the gauge. Hope this helps, Bob
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