Composition and function of intake system of electronically controlled engine?

It consists of an air filter, an air flow meter, a throttle body, an air inlet pipe, an air inlet chamber, an air inlet manifold, an idle speed control (IAC) valve, various sensors, wires and hoses for controlling air volume and vacuum degree.

The air intake system filters a certain amount of fresh air through an air cleaner, and measures it with an air flow meter, then enters the engine intake chamber and is sucked into the engine combustion chamber through the intake manifold of each cylinder. The amount of air flowing into the intake chamber is determined by the throttle opening in the throttle body and the engine speed.