Knock Sensor DD Checking without taking a car. Chery
This video describes the verification of the knock sensor ( DD ) of the firm BOSCH 0261231 204. The knock sensor is of great importance in the work of a car engine . As a result, the motor vehicle may detonation effect. Detonation is abnormal ignition and combustion of the fuel - air mixture in the combustion chamber. As a result of prolonged combustion , when the temperature is several times higher than the permissible limits , and the combustion velocity exceeds the speed of sound is the destruction of the piston group.
If you have observed a reduction in power , reduced dispersal dynamics and listening to the engine can be heard metallic sounds , there is a background check DD .
How to do it with his own hands in the garage and without removing the sensor from the car , look at this video.