Throttle Position Sensor (TPS)

Fig. 24 Throttle Position Sensor (TPS) adjustment screw plug removal:

Fig. 25 Throttle Position Sensor (TPS) adjustment specifications:

TOOLS REQUIRED (or equivalents)
^ J-28696 or BT-7967 A, TPS adjustment tool.

ADJUSTMENT
Do NOT remove plug sealing Throttle Position Sensor (TPS) adjustment or adjust TPS unless carburetor is overhauled or Computer Command Control (C3) system diagnosis indicates a problem with the sensor.

1. Drill a .078 (5/64) inch hole, 1/16 - 1/8 inch deep, in plug covering TPS adjustment (figure 24).
2. Thread a No.8 sheet metal screw into hole and pry out plug using a suitable lever.
3. Remove TPS adjusting screw using tool J-28696 or BT-7967 A.
4. Leaving electrical connector in place, connect a digital voltmeter between TPS center terminal "B" and bottom terminal "C", using jumper wires if necessary.
5. With ignition "ON", engine stopped and A/C off, install TPS screw and adjust to obtain specified TPS idle voltage (figure 25).
6. Turn ignition "OFF" and install new plug over TPS adjusting screw.