Why does the engine die when stopping?

The engine may die when stopping due to a few common reasons, such as a faulty idle air control valve, which regulates airflow during idling, or a vacuum leak that disrupts the air-fuel mixture. Additionally, issues with the fuel system, like a clogged fuel filter or failing fuel pump, can lead to insufficient fuel supply at low speeds. Lastly, a malfunctioning ignition system might also cause the engine to stall when decelerating. Regular maintenance can help prevent these problems.