Q: The reason why the engine of Corolla is shaking and the fault light is on.

The light indicates that there may be a fault in the electronic throttle system, which may affect the normal use of the vehicle. Electronic adjustment of engine power (electronic throttle), usually the air intake system leaks or is blocked, too much carbon is deposited in the throttle, the oil selection is not up to standard, and the valve is stuck, which will lead to the light. "After running two fuel tanks, the idling jitter and flameout will disappear. You can learn from it.