What is the unstable idle speed of Liu Guo Hao Han lng car?

The reason for the unstable idle speed of lng refueling vehicle is the leakage of various valves in the intake pipe and intake system.

Air enters either from the intake pipe, gasoline vapor enters from the carbon canister valve, and exhaust gas enters the intake pipe, which will cause the mixture to be too rich and too thin, which will make the engine burn abnormally. There is too much dirt on the throttle and air intake. Incorrect intake at idle speed.

Liquefied natural gas vehicle fuel system: injector failure. If the injector leaks oil or is blocked, it can't inject oil according to the instruction of ECU, which will cause the mixture to be too rich or too thin, make individual cylinders work badly, and lead to unstable engine idle speed.