Where is the throttle of EFI diesel engine and what is its function?

This should be called choking. No diesel engine is installed. I have only seen the equipment on Nissan diesel engine, which is considered as non-mainstream. The choke valve of Nissan diesel engine is closed when the engine stops, which cuts off the air intake of the engine. It can be said to be a flameout double safety device. If the engine fails to stop the oil and put out the fire, then the choke will show its talents. Take the 2.5 electronically controlled * * rail engine of Dongfeng Nissan pickup truck as an example. The choke valve is installed at the joint of the intake manifold and automatically closes for about 5 seconds when the power is cut off.