Bosch Knock Sensor

The Bosch Knock Sensor (also called a detonation sensor or engine knock sensor) monitors engine vibration and helps the engine control unit detect abnormal combustion. When the sensor detects knock, the ECU can adjust ignition timing to help protect the engine and keep it running efficiently.

Key Features:

• Piezoelectric sensing element that converts engine block vibrations into an electrical signal for the ECU
• Helps the engine management system adjust ignition timing in real time
• Helps protect pistons, rings, and bearings from damage caused by sustained detonation
• Supports smooth performance, fuel efficiency, and emissions control
• Built to meet the quality standards of a leading global automotive supplier

Bosch is a long-time OE supplier of sensors and engine management components. A failing knock sensor can cause a check engine light, reduced power, poor fuel economy, or pinging under load. Replacing it with a quality sensor helps restore proper engine management function.