Air Intake System Description
The main components of the air intake system are air cleaner, MAF sensor, air cleaner intake air pipe, throttle body, intake collector, IAC valve and intake manifold. The air (by the amount corresponding to the throttle valve opening and engine speed) is filtered by the air cleaner, passes through the throttle body, is distributed by the intake manifold and finally drawn into each combustion chamber.
When the IAC valve is opened according to the signal from ECM (PCM), the air bypasses the throttle valve through bypass passage and is finally drawn into the intake manifold.