The engine fault light has been turned on and off several times. What's the problem?

This is the self-inspection link when the vehicle is started.

The engine fault light detects whether the exhaust emission is normal through the sensor. When it exceeds the standard, the engine warning light will give an alarm. In most cases, after the light is on, it disappears after a while, indicating that there is nothing wrong with it. Don't worry too much. It is probably some problems caused by poor atomization in the cylinder of the fuel engine, which led to the alarm when the car started the engine. Then don't worry about that. When the temperature rises, the warning light will naturally go out.