Situation
The oil pressure switch and sensor indicates if the oil pump and lubrication system are working properly, detects if the pump or relief valves are stuck open, senses if there is insufficient oil, and provides inputs that determine the useful life of the oil.
OE capacitance designs fail when the connection between internal plates and films fracture.
OE sensors can create electrical noise or be susceptible to other engine noise, causing inaccurate readings.
Failure Modes
Oil Leaks
Erratic gauge operation
Total electronic failure with the gauge reading zero or very high
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