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The BOSCH Crankshaft Position Sensor (0 986 280 421) is a critical component for modern engine management systems. It provides essential data to the engine control unit (ECU) regarding the rotational speed and precise position of the crankshaft. This information is vital for timing fuel injection and ignition, ensuring optimal engine performance, fuel efficiency, and emissions control. A malfunctioning crankshaft position sensor can lead to various drivability issues, including rough idling, stalling, and failure to start. Engineered by BOSCH, a leader in automotive technology, this sensor is built to meet stringent quality standards. Its reliable operation contributes to the overall health and efficiency of your vehicle's powertrain.