A knock sensor is important to a car's fuel efficiency. Learn more about what a knock sensor is, what it does, where it's located, and how it works.

A knock sensor is an engine management component in modern internal combustion engines. It is designed to detect the sound of knocking or pinging in the engine, indicating an engine problem such as ...

How Much Does It Cost To Fix? If your Hyundai Sonata qualified for an engine replacement, a warranty extension, or was involved in the settlement, it may not cost you anything to have it repaired.

You can test both the knock sensor and the circuit wiring with an ohmmeter. Refer to the service manual for your vehicle's sensor and circuit resistance specifications.

Thus, with an ESC system a knock sensor is employed. The purpose of this primer is to establish methods to eliminate or minimize evoking the knock sensor circuit.