Why does c30 ventilation in the Great Wall always turn off?

There are several reasons for the unstable idle speed after changing automobile oil to gas. First, from the principle of changing automobile oil into gas, there is a considerable gap between the explosion points of gasoline and liquefied petroleum gas or natural gas, that is to say, the temperature of changing automobile oil into gas is lower than that of liquefied petroleum gas and natural gas. So when using gasoline, sometimes the problem can't be shown, but when using liquefied petroleum gas or natural gas, it can be clearly shown. Second, changing automobile oil to gas is still unstable. From the perspective of auto parts, there are the following reasons: 1. The valve is dirty and needs cleaning. 2, spark plug quality problems, lack of ignition energy, need to replace the spark plug. Third, after the automobile oil is changed to gas, the idle speed is unstable. Judging from the automobile oil-to-gas device, it may be the quality problem of the electronic control system or the pressure reducer and nozzle. Fourth, the idling speed of automobile oil is unstable after changing to gas. From the modification process, it may be that the injection hole of the nozzle is too large or too small, and the injection timing and injection quantity controlled by the electronic control system and pressure reducer are inaccurate.