What is the reason why the engine often shuts down?

There are many reasons that may cause the engine to stall, mainly as follows: 1. Excessive carbon deposition in throttle, idle motor, air intake and combustion chamber will lead to engine flameout. There are too many carbon deposits and dirt in the air inlet, and the cross-sectional area of the air passage changes, which makes the control unit unable to accurately control the idle air intake, resulting in the mixture being too rich or too lean and the engine unable to start. 2. The fuel constant pressure performance of the electronic control system is poor and the fuel pressure is low, which leads to poor atomization of fuel injection and difficult starting. 3. The resistance of the crankshaft position sensor itself is abnormal, which leads to the disappearance of the crankshaft speed signal after the hot car, leading to the engine flameout. 4. The gasoline pump itself fails, and the resistance changes after working for a long time, so it can't work normally to provide normal fuel pressure, which leads to the flameout of the engine hot car. 5. The ignition system is faulty, the ignition module is overheated and cannot work normally, the ignition voltage is invalid, and the engine is turned off. 6. Abnormal throttle signal voltage and abnormal engine computer control will cause the vehicle to stall while driving. 7. There is a virtual connection on the line, which causes the engine to stall occasionally. This kind of fault needs a comprehensive inspection.