This HELLA crankshaft position sensor, part number 6PU 358 381-491, is designed to accurately monitor the rotational speed and position of the crankshaft. Proper functioning of the crankshaft position sensor is crucial for the engine control unit (ECU) to manage ignition timing and fuel injection. A faulty sensor can lead to various engine issues, including rough idling, stalling, and failure to start. HELLA is a trusted name in automotive components, known for producing high-quality parts that meet or exceed original equipment specifications. This sensor is built to withstand demanding engine conditions, ensuring durability and consistent performance.