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2G How to adjust a 2G TPS

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Closed Throttle Position Switch and Throttle Position Sensor Adjustment

Note: When using the scan tool, proceed to service data item 25 and observe the ON/OFF changes to the closed throttle position switch instead of performing ohmmeter tests. If the Scan tool is not available, follow the steps below.

1. Disconnect the connector of the TPS.

2. Connect an ohmmeter between terminal 3(closed TPS) and 4 (sensor ground) by using jumper wires.

3. Insert a feeler gauge with a thickness of 0.45 mm (.0177 in.) between the fixed SAS and the throttle lever.

4. Loosen the TPS mounting bolt; then turn the TPS body fully counter clockwise.

5. In this condition, check for continuity between terminals 3 and 4.

6. Slowly turn the TPS clockwise until the point at which continuity between terminals 3 and 4 changes to non-continuity is found. Tighten the TPS installation bolt at that position.

7. Connect the connector of the TPS.

8. Connect the scan tool to the datal link connector (pin 16).

9. When not using the scan tool, proceed as follows:

a.) Disconnect the TPS connectors and connect the special tool. Test harness set, between the disconnected connectors.

b.) Connect a digital voltmeter between the TPS terminal 2 (sensor output) and terminal 4 (sensor ground).

10. Turn the ignition switch ON (but do not start the engine).

11. Check the TPS out voltage. Standard value:400-1000mV

12. If there is a deviation from the standard value, check the TPS and the related harness.

13. Remove the feeler gauge.

14. Switch OFF the ignition.

The pics aren't that clear, but it's the best I could do. Good luck.
 

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