Throttle Position Sensor: Adjustments

CAUTION:
^ The throttle position sensor is adjusted at the factory before shipment. Unnecessary adjustment will negatively effect the engine performance.
^ Adjusting the throttle position sensor by using the throttle adjusting screw (TAS) will negatively effect the engine performance.




Adjustment
1. Verify that the throttle valve is at the closed throttle position.
2. Disconnect the throttle position sensor connector
3. Turn the ignition switch to ON.
4. Measure the voltage at the harness side connector terminal A by using the voltmeter.

Specification: 4.5-5.5 V

5. Connect the throttle position sensor connector.
6. Remove the PCM.
7. Connect the SSTs to the PCM.
8. Verify that the throttle valve is at the closed throttle position.
9. Turn the ignition switch to ON.
10. Loosen the throttle position sensor screw.
11. Using the SSTs, adjust the throttle position sensor so that PCM terminal 3F voltage is within the specification.




Specification (closed throttle position)

12. Tighten the throttle position sensor screw.

Tightening torque:
1.6-2.3 N-m (14-20 in-lb)

13. Fully open the throttle valve and verify that the voltage at PCM terminal 3F is within the specification.




Specification (wide open throttle)

14. If not as specified, replace the throttle position sensor.
15. Adjust the throttle position sensor after installation.