Under what circumstances will a car stall?

[LaMarcus]

A car may stall due to the following reasons: unskilled driving techniques or improper operation; fuel pump stuck or malfunctioning leading to poor fuel supply; use of low-quality fuel causing excessive engine carbon buildup; faulty spark plugs or ignition coils resulting in multiple cylinders failing to ignite; excessive dirt accumulation on the idle control valve core and throttle body. Low-quality fuel: For automatic transmission cars, stalling is mainly caused by the use of low-quality fuel. One solution is to refuel at reputable, large-scale gas stations with higher-octane fuel, such as using 97-octane gasoline. Although more expensive, it ensures longer vehicle lifespan and better driving performance. Excessive dust: The main cause of stalling during idle is excessive dust in the air. When the engine is running, dirt accumulates on the idle control valve core and throttle body. When too much dirt builds up, the engine will have low idle speed, unstable idle operation, and may stall during idling. This issue can be resolved by simply cleaning the idle control valve.