The ABAKUS Detonation Sensor, part number 120-09-243, is designed to monitor and detect engine knock or detonation. This critical sensor plays a vital role in modern engine management systems by identifying abnormal combustion events. When detonation occurs, the sensor sends a signal to the engine control unit (ECU). The ECU then adjusts ignition timing and fuel mixture to prevent further knocking, thereby protecting the engine from potential damage and maintaining optimal performance. This proactive measure helps to ensure the longevity and efficiency of your vehicle's powertrain. Proper functioning of the detonation sensor is essential for maintaining smooth engine operation, fuel economy, and overall power output. Replacing a faulty sensor with this reliable ABAKUS unit will help restore your engine's performance and prevent costly repairs down the line.