Throttle Body Unit

Throttle Body Unit:

The throttle body uses a throttle plate to control the amount of air delivered to the engine. The TP sensor, the MAF sensor, and the Idle Air Control (IAC) valve are also mounted on the throttle body.

Vacuum ports located behind the throttle plate provide the vacuum signals needed by various components. The engine coolant is directed through a coolant cavity in the throttle body in order to warm the throttle valve and prevent icing.