Throttle Body Assembly

The throttle body assembly controls airflow to the engine through a single butterfly-type valve. The throttle position is controlled by multiple-link, progressive opening, throttle linkage. The body is a single piece die casting made of aluminum.

The throttle body assembly has a single bore with an air by-pass channel around the throttle plate. This by-pass channel controls both cold and warm engine idle airflow, regulated by an air by-pass valve assembly mounted directly to the throttle body. The valve assembly is an electro-mechanical device controlled by the EEC. It incorporates a linear actuator which positions a variable area metering valve.