The TOPRAN 502 891 Crankshaft Position Sensor is a critical component for modern engine management systems. It accurately detects the rotational speed and position of the crankshaft, sending this vital data to the engine control unit (ECU). This information is used by the ECU to precisely control ignition timing and fuel injection, which are fundamental for smooth engine operation, optimal power delivery, and efficient fuel consumption. A malfunctioning sensor can lead to various drivability issues, including engine misfires, rough idling, stalling, and a check engine light illumination. Crafted with quality materials, the TOPRAN 502 891 is designed to meet or exceed original equipment specifications, ensuring reliable performance and durability. Replacing a faulty sensor with this unit will help restore proper engine function and prevent potential further damage.