The BMW 530i stalled and the gas pedal was still on.

Just running at high speed, the coolant temperature is still relatively high, and the cooling fan needs to be turned for a while. When the coolant temperature drops, it will stop. The stop and start of the cooling fan is controlled by the temperature sensing probe, which is safe and obtains power directly from the battery. So after the high-speed knife runs, don't turn off the engine immediately, idle for a while, cool down and then turn off the engine.

Throttle can be divided into straight-through type and bypass type according to air intake mode. The opening of the straight-through throttle is the same as the opening of the engine at idle speed after flameout, while the bypass throttle regulates the intake volume of the bypass air channel through the idle speed control valve.