Why is the fault light of Beiqi Wangwei M20 engine on?

The engine fault light may be on because the original throttle or the carbon deposit inside the engine is unstable, so compare the dirty performance of the throttle. The oxygen transmitter is out of order now, which is easy to happen when driving at low speed in urban areas. Pay attention to check whether the fuel injector leaks.

The engine fault light usually comes on for the following reasons:

1, poor combustion state: the poor combustion state of the engine is the main reason for the engine fault light.

2. Engine knock

There are usually three situations:

The first case: the car is weak;

The second case: the car is weak and the engine noise is too large;

The third case: there is obviously a knocking sound.

In the first case, some engine fault lights will be on, and some will not. In the second and third cases, the engine fault light will be on.

3. Internal causes of engine fault light: poor fuel quality, unclean engine cylinder and carbon deposition. (Photo/Text/Photo: Zou Ting 1) @20 19