What is the reason why the fault light of Laotianlai engine is yellow?

1. Poor gasoline quality will lead to insufficient combustion of the mixture in the cylinder, which will lead to the warning light, and it is easy to produce carbon deposit.

2. The existence of carbon deposits at the air inlet and the top of the piston will lead to poor atomization, resulting in insufficient combustion and warning lights.

3. When the cold car starts, especially when the weather temperature drops sharply, the alarm light will light up due to the temperature correction problem of the computer, but as long as the temperature drops to a certain temperature and there is no fluctuation, it will be relatively stable.

4. If the mileage of the engine is too long, the working characteristics of the spark plug will be weakened, leading to the lighting of the alarm lamp.