The position of the small air pipe on the throttle of the sixth generation Accord

Located behind the air cleaner element of the air intake system and in front of the air intake manifold.

Throttle is the throat of the engine, which can control the 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.