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Oil pressure gauge 46

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  • Oil pressure gauge 46

    I can’t get the oil pressure gauge to do anything on our 46. It has two green wires going to it and both are negative (green and black). The sender wire was checked with a continuity tester and is good. I also tried taking positive directly to the sender side of the gauge and it still won’t budge. Any tips to get it working? Or do I need to have it reconditioned?

  • #2
    One side of the gauge has battery power when the key is on, the other side is hooked to the sender which acts as a variable resistance to ground, the resistance varying depending on the oil pressure. I believe all the gauges are powered from the same source in the wiring harness. I don't remember the color codes.


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