Glossary “throttle return check” Definition:
A dashpot.

Glossary “throttle solenoid positioner” Definition:
Electric device that holds the throttle plate in the hot-idle position and closes it when the ignition switch is turned off.

Glossary “throttle valve” Definition:
Moveable valve that controls the amount of air admitted into the induction system.

Glossary “throttle linkage” Definition:
Connection between the accelerator pedal and the throttle. Also refers to the connection from the throttle to the A/T, using either a rod or cable.

Glossary “throttle plate” Definition:
Term used for throttle valve.

Glossary “throttle position sensor (TPS)” Definition:
Variable three wire, resistor type electrical sensor which sends a signal to the ECU relative to the throttle position.

Glossary “throttle pressure” Definition:
Transmission hydraulic pressure that is directly related to engine load. Throttle pressure, which increases with throttle opening and engine torque output, is one of the principle pressures used to control shift points.

Glossary “throttle kicker actuator” Definition:
Electric solenoid, controlled by the processor, supplies manifold vacuuum to the throttle kicker to adjust the idle RPM.

Glossary “throttle cut-out relay” Definition:
Term used for WOT cut-out relay.

Glossary “throttle hard stop” Definition:
Throttle stop on which the throttle lever rests when the throttle is released. On most computer controlled vehicles, this adjustment point is sealed, and is not used to adjust idle speed.

Glossary “throttle body” Definition:
Housing of the intake system that may or may not contain a fuel injection system. Housing that contains the fuel injector(s) used in a TBI system.

Glossary “throttle body fuel injection (TBI)” Definition:
A fuel injection system in which one or two injectors are installed in a carburot like throttle body mounted on a conventional manifold. Fuel is sprayed at a constant pressure above the throttle plate(s) to mix with the incoming air.

Glossary “throttle body injection” Definition:
Term used for throttle-body injection system.

Glossary “throttle body injection system (TBI)” Definition:
A fuel-injection system that resembles a carburetor and has fuel injector(s) located in a common throttle body. It provides many of the advantages of fuel injection, such as easier starting and lower emissions, without the cost and complexity of a multiport-injection system.