Throttle Position (TP) Sensor

Disconnect TP sensor electrical connection. Install proper thickness feeler gauge between stop screw and lever. Using ohmmeter, check continuity or resistance between designated terminals. Adjust or replace TP sensor if it is not within specification. See THROTTLE POSITION (TP) SENSOR RESISTANCE  . See Fig 1 for terminal identification.

Fig 1: Throttle Position Sensor Terminal ID

Courtesy of GENERAL MOTORS CORP.