This DELPHI Detonation Sensor, part code AS10218, is engineered to accurately detect engine knock or detonation. By identifying abnormal combustion events, it signals the engine control unit (ECU) to adjust ignition timing, preventing potential engine damage and ensuring optimal performance. This sensor is crucial for maintaining fuel efficiency and the overall health of your engine. Manufactured by DELPHI, a trusted name in automotive components, it meets high-quality standards for reliability and durability. Easy to install, it's a direct replacement for your original sensor.