Throttle Body: Description and Operation
EARLY MODEL VEHICLESThrottle Body View:
Throttle Body View:
Throttle Body View:
Throttle Body View:
The throttle body assembly is mounted on the intake manifold and houses the throttle plate, fuel injector, fuel pressure regulator, throttle body temperature sensor, Throttle Position Sensor (TPS), and the Automatic Idle Speed (AIS) motor. Intake air flow during part throttle to wide open throttle operation is controlled by the driver through the cable operated throttle plate. At idle the throttle plate is closed and engine idle speed is controlled by the Single Board Engine Controller (SBEC) through actuation of the AIS motor which regulates air flow through the by-pass channel. The throttle body provides the chamber for fuel metering, atomization, and mixing of atomized fuel with incoming air.
LATE MODEL VEHICLES
Throttle Body View:
Throttle Body View:
Throttle Body View:
Throttle Body View:
The throttle body assembly is mounted on the intake manifold and houses the throttle plate, fuel injector, fuel pressure regulator, throttle body temperature sensor, Throttle Position Sensor (TPS), and the Automatic Idle Speed (AIS) motor. Intake air flow during part throttle to wide open throttle operation is controlled by the driver through the cable operated throttle plate. At idle the throttle plate is closed and engine idle speed is controlled by the Single Board Engine Controller (SBEC) through actuation of the AIS motor which regulates air flow through the by-pass channel. The throttle body provides the chamber for fuel metering, atomization, and mixing of atomized fuel with incoming air.