1.4 After the new Sail car was ventilated, the cold car oil began to idle unsteadily, even turned off. Change it more often, and the cleaned throttle is invalid.

It's not hard to understand. Since your car used engine oil after the new Sail car was changed in 1.4, your sensors, ecu and other control systems were designed and controlled accordingly.

When you switch to burning gas, your spray point changes, but your control system does not change, that is, the ecu does not change, and the ecu still works according to the mixture concentration data detected when burning engine oil before, so this happens.

The idle speed of cold engine oil is unstable or even flameout. Before stopping every time, turn the oil for several hundred meters before stopping, and it will be normal the next day. This is very simple. When the car starts, ecu needs to detect the car data, which requires a process. When burning gas, ecu will detect it according to the data of burning oil, and there will be errors, so ecu will make adjustments. If too much or too little gas injection is not changed, it will cause the engine oil of the cold car to idle unsteadily or even turn off. Before stopping every time, run a few hundred meters with oil and start again the next day. This is because when the pipeline is started the next day, it is actually still oil or burning oil, which is equivalent to normal startup. How can there be a problem? It has nothing to do with the throttle.