What's with the engine shaking badly?

Common faults of this problem are: the engine throttle may be too dirty or faulty. There may be something wrong with the ignition system of the engine, such as the loss of the spark plug and the failure of the ignition module. There may be faults in the engine fuel system, such as insufficient fuel supply pressure of the gasoline pump, unclean gasoline filter, unclean fuel injector, etc. It may be that the engine cylinder pressure is faulty, for example, the piston ring is damaged and the valve is closed due to wear, resulting in poor sealing.