Throttle Position (TP) Sensor
WARNING: This page is about a different car, the 1996 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
The TP sensor, mounted on throttle body, delivers an input signal indicating throttle position to the Engine Control Module (ECM). The ECM may use input signal for controlling fuel injection system, ignition timing (spark advance), idle speed control system, A/C-cut control system (if equipped), intake air control valve system (if equipped) and electronically controlled automatic transmissions/transaxles.