What is the reason why Liu Guo Wuling 1.8 flameout in neutral?

First, check whether there are related sensors or switches on the clutch pedal. When shifting gears, release the accelerator pedal and see if there is any problem with the idle switch on the accelerator position sensor.

Check the air flow meter, throttle and idle speed control system.

Whether the ignition system and fuel injection system work normally.