What should I do if Chery A 1 idle speed decreases and the engine stalls?

As for your question, since you haven't seen the existing car, the main cause of the failure should be carbon deposition on the accelerator and carbon deposition on the air intake. When the car is cold, it will adsorb some gasoline, which will lead to the mixture being too thin when the engine is idling, which will lead to the unstable idling of the car. So you should check whether there is too much carbon in the throttle and air intake. If there is too much carbon deposit, the cross-sectional area of the air passage will change, which will make the control unit unable to accurately control the idle intake, resulting in too lean mixture, abnormal combustion and unstable engine idle speed. There is also the problem of abnormal noise when starting, which may be the sound of engine knocking, which is often called the pole. There are four main reasons for shouting: too much carbon deposit, too early ignition time, low speed and high gear, or adding low-grade gasoline may cause such failures. In view of what you said, it may be that the engine condition of the cold car is not particularly good. If the gear shift is too early at this time, it will increase the load of the engine and lead to dry burning. It is recommended that you warm up for 3 minutes before starting, and it is best not to grab the gear (that is, high gear and low speed) before the engine water temperature reaches the normal value. At the same time, remind you that the rod should be repaired in time. Long-term severe deflagration will lead to early wear of cylinder parts, thus greatly shortening the service life of vehicles. I hope my answer is helpful to you.