A 2006 Li Xia N3 hot car can easily put out the fire in neutral.

If the idle speed is only low, it can be changed to a manual idle motor. Try two water pipes of the throttle valve to heat the throttle valve. It will be hot and cold when you just get off the bus, and the temperature of the two pipes is almost the same. After all, the inlet pipe is a little hotter than return pipe.