This DELPHI Detonation Sensor (part code AS10227) is designed to accurately detect engine knock or detonation. By monitoring these abnormal combustion events, the sensor sends critical data to the Engine Control Unit (ECU). The ECU then adjusts ignition timing and fuel mixture to prevent engine damage and ensure optimal performance and fuel efficiency. Manufactured by DELPHI, a trusted name in automotive components, this sensor provides reliable and precise readings for consistent engine operation.