Hefei engine fault light is on, but there is no problem. What happened?

The engine fault light turns on and off. Reason:

1, the instrument indicates that the gearbox is abnormal or the fault light is on. Generally, the gearbox will give an alarm if there is a fault, and the fault can be determined by computer detection;

2. It may be that the electronic components of the gearbox are out of order. The solution is: use computer to detect and replace damaged electronic components;

3. The mechanical parts of the gearbox are seriously worn, and the solution: repair the damaged mechanical parts;

4. There is also an engine or ABS fault that sends out an error signal and interferes with the gearbox. Solution: Check the engine and ABS, and repair the damaged electrical components.

If the fuel quality is not good, it may also lead to insufficient combustion during driving, and it will jump out of the engine fault light, but it will not last long. If you open it again, it will naturally go out. We don't have to worry about this situation. Probably with inferior gasoline. However, before the gasoline enters the combustion chamber, it is filtered by the gasoline filter, which will not cause any harm to the engine. So there is no need to smoke inferior gasoline. After burning it, you can change to a regular gas station.

In addition, some old cars have a lot of carbon deposits, which can easily lead to engine failure lights, because carbon deposits themselves have adsorption. In case of fire, if the engine fault light lasts for tens of seconds, it will go out because of carbon deposition. Because the car has just started, some of the sprayed fuel will be adsorbed by carbon deposits, and the fuel failure light entering the cylinder will be on, but it will go out after a while. This situation is due to poor air intake, or the air filter is too dirty and needs to be replaced.