Engine knock sensor

The engine knock sensor is an important component of the engine management system and serves to detect unwanted combustion noises, known as engine knocking. These uncontrolled combustion events can occur when the air-fuel mixture in the cylinder ignites too early or unevenly.

The sensor is usually mounted directly on the engine block and uses a piezoelectric element to measure engine vibrations. If the sensor detects typical frequencies indicative of knocking, it sends a signal to the engine control unit (ECU). The ECU then adjusts the ignition timing or fuel injection to stabilize combustion.

Through continuous monitoring, the engine knock sensor protects the engine from damage that could be caused by excessive pressure spikes in the combustion chamber. At the same time, it enables optimized engine management, thereby improving performance, fuel efficiency, and emissions.

Engine knock sensors are designed for use in the engine compartment and must withstand strong vibrations, high temperatures, and mechanical stress. Robust housings, precise sensor technology, and durable materials ensure reliable operation over a long period.

At Autoteile Gossau, you'll find engine knock sensors for numerous vehicle makes and models, both original equipment and high-quality aftermarket parts. Benefit from the lowest prices in Switzerland, fast delivery, or convenient in-store pickup in Gossau with cash or card payment.