Throttle Body: Description and Operation

LOCATION

The throttle body assembly is mounted on top of the intake manifold.


PURPOSE

Air flow through the throttle body is controlled by the throttle blade. The throttle blade is connected to the accelerator pedal by the accelerator cable. The fuel inlet and return lines are connected to the throttle body.


COMPONENTS

It contains the fuel injectors, fuel pressure regulator, idle speed control actuator, throttle position sensor, and manifold absolute pressure sensor.