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Throttle Body

The throttle body is mounted to the top of the intake manifold and contains the fuel injector, fuel pressure regulator and throttle valve. See Fig 1 . The fuel supply and return tubes are connected to the throttle body by pressure fittings. The Idle Speed Actuator (ISA) motor and Throttle Position Sensor (TPS) are also mounted to the throttle body.

Fig 1: Throttle Body Assembly

Courtesy of CHRYSLER MOTORS.