Why does check engine light come on then car stalls?

The check engine light can illuminate for various reasons, such as issues with the engine, transmission, or emissions system. When the car stalls, it may indicate a more serious problem, like a malfunctioning sensor, fuel delivery issue, or ignition failure. These faults can disrupt the engine's performance, leading to a loss of power and eventual stalling. It's essential to diagnose the underlying issue promptly to avoid further damage.