Where is the electronic throttle of the Polaroid diesel engine?

The electronic throttle of Baolige diesel engine is behind the air filter element of the air intake system. Throttle is the throat of the engine, which can control the air intake of the engine. When the driver presses the accelerator pedal, he actually controls the throttle opening instead of directly controlling the fuel injection quantity. When the throttle opening becomes larger and the sensor detects that the amount of air entering the engine increases, the ecu will command the fuel injection system to increase the fuel injection amount, and all automobile engines are using electronic throttles.