The DELPHI SS11156 is a high-quality crankshaft position sensor designed to provide precise data on the engine's crankshaft speed and position. This sensor plays a critical role in the engine control unit's (ECU) ability to manage ignition timing and fuel injection. By accurately detecting the crankshaft's rotation, it allows the ECU to synchronize these vital engine functions, leading to smoother operation and improved power delivery. Crafted with durable materials, the SS11156 is built to withstand the demanding conditions of the engine bay, ensuring reliable performance over time. Its direct-fit design simplifies installation, making it a convenient replacement for a faulty sensor. Replacing a malfunctioning crankshaft position sensor with the DELPHI SS11156 can resolve issues such as rough idling, stalling, poor acceleration, and check engine lights, restoring your vehicle's optimal performance.