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My 2007 qsc8.3 490 w/smart craft oil pressure reading acts like a switch. It either reads zero when warm at idle or 69 psi above 1100 rpm. Sender is correct. I traced 3 wires to connector. ground is good. Voltage supply is good and reference varies as supposed to . So oil sensor and wiring doing what their supposed to up to the block. I really can’t arbitrarily change computer components to fix. Any known way to test? Manual oil gauge screwed into block reads fine. Internal connections at both sides of connector block are clean and ohm out fine.
Any help tracking this down would be appreciated. Alarm for low oil pressure goes off every time i lower my throttle to slow down. Thanks so much
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