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Message: <blockquote data-quote="cobrajeff96" data-source="post: 1528153" data-attributes="member: 29141">The oil pressure circuit in the SN95 was never meant to be accurate, anyways. It's more of a 6psi switch rather than a sweeping gauge. Ford determined if you has at least that amount of pressure, things were ok inside the engine.There is a way to make the oil pressure gauge accurate and sweep across a range. Mark Olson at accutach.com figured this out and made it public. I've purchased all the materials to make it happen in my car, but haven't done the work yet (and it's not bad).His procedure replaces the OEM 6psi switch and uses a true pressure sender (rather than a switch).But the red/white wire should go direct to the gauge cluster, I don't think it passes through the ECU.</blockquote>