The engine displays the state to be learned.

Does the subject want to ask "Why does the engine display the state to be learned"? Causing throttle problems. It shows that all the things to be studied are caused by poor throttle seal or throttle failure. You can re-check the air tightness of the throttle or replace the throttle and send it to the repair shop for solution. The function of the engine is to provide power for the car. The engine converts the thermal energy of gasoline into mechanical energy through the expansion of gas after burning in a sealed cylinder. Internal combustion engines usually convert chemical energy into mechanical energy, and engines are suitable for power generation devices.