Throttle Position Sensor: Adjustments

1. Disconnect battery negative cable at battery and TPS connector.

Applying Vacuum To Throttle Opener:

2. Disconnect throttle opener vacuum hose from VSV and connect vacuum pump gauge to hose disconnected.
Apply -50 cmHg vacuum to throttle opener to move throttle valve to idle position.

Inserting Thickness Gauge:

3. Insert 0.3 mm (0.012 in.) thickness gauge between throttle valve lever and throttle stop screw.
4. Loosen TPS mounting bolts.

TPS Adjustment:

5. Connect ohmmeter between C and D terminals of TPS connector.
6. First, turn TPS clockwise fully and then counterclockwise gradually to find position where ohmmeter reading changes from (infinity) to 0 (zero). Then fix TPS at that position by tightening bolts to specified torque.

FASTENER TORQUE: 3.5 Nm (0.35 kg-m, 2.5 lb-ft)

7. Check that there is no continuity between terminals C and D when 0.4 mm (0.016 in) thickness gauge is inserted.
8. Check that there is continuity between terminals C and D when 0.2 mm (0.008 in) thickness gauge is inserted.
9. If check result is unsatisfactory in steps 7 and 8, it means that installation angle of TPS is not adjusted properly. Therefore, start all over again from step 1.

CAUTION: As throttle stop screw is factory adjusted precisely, don't remove or adjust it.

10. Connect connector to TPS securely, connect throttle opener vacuum hose to VSV and connect battery negative cable.