Intake Air System

Intake Air System

Refer to the system diagram to see a functional layout of the system.




Intake Air Bypass Control Thermal Valve

When the engine is cold, the intake air bypass control thermal valve sends air to the injector.
The amount of air is regulated by engine coolant temperature. Once the engine is hot, the intake air bypass control thermal valve closes, stopping air to the injector.




Throttle Body

The throttle body is a single-barrel side draft type. The lower portion of the idle air control (IAC) valve is heated by engine coolant from the cylinder head to prevent icing of the throttle plate.




Intake Air System Diagram

This system supplies air for engine needs. A resonator in the intake air duct provides additional silencing as air is drawn into the system.