Throttle Cable/Linkage: Description and Operation

Throttle Cable:

The Throttle Cable, which runs from the accelerator pedal to the throttle body, is a sheathed, steel strand cable. When the driver applies pressure to the accelerator pedal and the pedal moves, the Throttle Cable moves in relation to the pedal. The cable then moves the throttle valve inside of the throttle body, allowing a greater amount of air into the engine. The throttle angle (TPS) sensor measures the amount of throttle valve movement. This measurement is then input into the ECU, which then calculates the necessary increase in injector "ON" time, and increases the fuel as necessary.