Genuine OEM Citroen Crankshaft Position Sensor, part number 9816032180. This sensor plays a critical role in engine management by monitoring the rotational speed and precise position of the crankshaft. This data is essential for the engine control unit (ECU) to accurately determine ignition timing and fuel injection. The sensor weighs 0.051 kg. Opting for a genuine OEM sensor ensures exact calibration and signal characteristics, which are vital for maintaining optimal engine performance, fuel efficiency, and preventing diagnostic trouble codes.