What happens if the knock sensor is broken, the signs of a broken knock sensor

The knock sensor we are talking about today is a device used to detect engine knock. Although this sensor looks relatively small and exquisite, if there is a malfunction, the consequences cannot be underestimated. So, what happens if the knock sensor is broken? Let's talk about the symptoms of the knock sensor.

Once the knock sensor is damaged, it is naturally unable to detect engine knock. Even if the engine has knocked, the ECU cannot adjust the ignition timing in time to prevent further knocking. Not only will the vehicle feel obvious vibration or abnormal engine noise, but also the power performance and fuel consumption of the vehicle will have a certain impact. If it is serious, the internal parts of the engine will be damaged, and the maintenance cost will be very high at that time. NS.

But as technology continues to develop,modernWhen designing automobile engine ECU, such a situation has been considered. Therefore, once the knock sensor signal cannot be detected for a long time, the protection program will be activated to avoid knocking, and a fault light will be lit to remind the car owner.So when wediscoverWhen the fault light is on, you must go to the auto repair shop for repairs in time. After all, the impact of car knock is quite serious.