The MEAT & DORIA 87648 Detonation Sensor is designed to monitor your engine's combustion process. It identifies abnormal vibrations, commonly known as engine knock or pinging, which can occur when the air-fuel mixture ignites prematurely. Upon detecting these vibrations, the sensor transmits an electrical signal to the engine control unit (ECU). The ECU then interprets this signal and makes real-time adjustments to the ignition timing to prevent engine damage and optimize performance. This ensures your engine operates smoothly and efficiently under various load conditions. This sensor is a crucial component for maintaining engine health and preventing costly repairs. Its reliable performance contributes to better fuel economy and a quieter, more stable engine operation.