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  1. Zjohnsonua

    Oil pressure guage readings - What are yours?

    I totally whiffed on the pot test in post #4. Back to the drawing board. My pressure gage is wonky. Been meaning to replace it. I'll tear into this one to see what's happening on the board.
  2. Zjohnsonua

    Oil pressure guage readings - What are yours?

    You've done what I did, and are left with the same questions I have. My theory is the gage is set up as a qtr bridge circuit, which can be highly sensitive to milliohm variations - which most DVMs won't pick up.
  3. Zjohnsonua

    Oil pressure guage readings - What are yours?

    It definitely doesn't act as a switch. Put the sender on a test rig and increment the applied pressure and the gauge will move accordingly. As best as I can tell, the gauge electronics are just very sensitive to very small resistance changes. I've seen several LS swaps that use an adapter to...
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