Camshaft Position Sensor

Camshaft Position Sensors (CPS) monitor camshaft position and rotational speed, providing critical data to the engine control unit for accurate fuel injection and ignition timing. Typically located near the camshaft(s) and utilizing either Hall-effect or variable reluctance technology, these sensors determine valve timing relative to crankshaft position. Digital signal output allows the ECU to precisely manage combustion events and optimize engine performance. Failure can result in difficult starting, poor engine operation, or a no-start condition. Modern engines often employ multiple CPS for variable valve timing (VVT) systems, requiring individual sensor monitoring and calibration.