Oil Pressure Sensor

Oil pressure sensors monitor engine oil pressure and transmit this data to the engine control unit (ECU) or oil pressure gauge. Typically located in the engine block or oil gallery, these sensors utilize a pressure transducer—often a piezoelectric or strain gauge type—to convert hydraulic pressure into an electrical signal. The ECU uses this signal to adjust engine parameters, illuminate warning lights, or control variable oil pump systems. Output signals are generally analog voltage or digital, varying by manufacturer and application. Failure can result in inaccurate readings, false warnings, or engine damage due to delayed detection of low oil pressure.