Hella Engine Oil Temperature and Pressure Sensor

The Hella Engine Oil Temperature and Pressure Sensor (also called an oil pressure and temperature sensor or OPS+T) monitors two key engine parameters with a single unit. It continuously measures oil pressure and oil temperature and sends both readings to the engine control unit (ECU). The ECU uses them to help manage engine operation.

Key Features:

• Dual-function sensing: Measures absolute oil pressure and oil temperature at one mounting location.
• Multi-chip module technology: A piezo-resistive cell measures pressure. A diode integrated in the module measures temperature.
• Supports engine management: The pressure reading helps the ECU control the oil pump on demand, which helps reduce fuel consumption and CO2 emissions. The temperature reading feeds the engine's thermal management.
• Digital signal output: Both values are sent to the ECU as a PWM (pulse width modulation) signal.
• Robust construction: Hella describes the module as leak-proof against engine oils.

Hella is an OE-level supplier of automotive electronics and sensors. Replacing a worn or faulty sensor can help restore accurate readings. It can also help clear oil pressure warning lights and erratic gauge or ECU data.