Throttle Position Sensor: Adjustments

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

Closed Throttle Position Switch
1. Verify that the throttle valve is at the closed throttle position.
2. Disconnect the throttle position sensor connector.
3. Loosen the attaching screws.




4. Insert a feeler gauge between the throttle adjusting screw (TAS) and the throttle lever. By adjusting the throttle adjusting screw (TAS), verify the continuity between the closed throttle position switch terminals C and D are as follows by using an ohmmeter.




Specification

5. Tighten the attaching screws.

Tightening torque
1.6 - 2.3 Nm {16 - 24 kg.m, 14 - 20 in.lb}

6. If not adjusted, replace the throttle position sensor. (Refer to THROTTLE POSITION SENSOR REPLACEMENT.)

Service and Repair

Throttle Position Sensor




1. Connect the SSTs to the data link connector-2.
2. Verify that the throttle valve is at the closed throttle position.
3. Loosen the attaching screws.
4. Turn the ignition switch to ON.




5. Select the PID/DATA MONITOR AND RECORD function of the NGS.
6. Select "TP V" on the NGS display. NGS measures and shows the voltage.

Specification
Closed throttle position: 0.1 - 1.1 V
Wide open throttle: 2.8 - 4.5 V
(Verify that the voltage Increase Is directly proportioned to the throttle valve opening angle.)

7. Tighten the attaching screws.

Tightening torque
1.6 - 2.3 Nm {16 - 24 kg.cm, 14 - 20 in.lb}

8. If not adjusted, replace the throttle position sensor.