Why does the car stall easily?

[EmilyLee]

There are several reasons why a car may frequently stall: 1. Fuel supply system: Clogged fuel lines. During normal engine operation, the fuel pump in the fuel supply system first draws fuel from the tank, which then passes through the fuel filter into the fuel distribution lines before being injected by the fuel injectors to form an air-fuel mixture. The fuel flow path during engine operation is: from the electric fuel pump, through the fuel filter, into the fuel lines, and finally injected by the fuel injectors. In this process, the fuel pump and fuel injectors are the most prone to failure. 2. Ignition system: Abnormal spark plug ignition. If the engine stalls when the air-fuel mixture properly enters the cylinders, the problem is likely with the ignition system. The function of the ignition system is to generate a sufficiently energetic spark between the electrodes of the spark plugs in the correct firing order for each cylinder. The most critical component is the spark plug, which operates in the high-temperature, high-pressure environment of the cylinders and is also the most susceptible to failure in the ignition system.