Throttle Body

The throttle body (9E926) controls airflow to the engine as follows:

• The throttle position is controlled by a single lever and accelerator cable (9A758) .
• The throttle body is a single-piece die casting made of aluminum.
• The throttle body has a single bore with an air bypass channel around the throttle plate. This bypass channel controls both cold and warm engine idle airflow control as regulated by an mounted directly to the throttle body .
• The idle air control valve (IAC valve) (9F715) is an electro-mechanical device controlled by the powertrain control module (PCM) (12A650) . The idle air control valve incorporates a linear actuator which positions a variable area metering valve.

Other features of the throttle body include:

• A preset stop to locate the WOT position.
• A throttle body-mounted throttle position sensor (TP sensor) (9B989) .