Throttle Position Sensor: Adjustments

NOTE: The throttle adjusting screw is set at the factory and must not be adjusted. Any adjustment will negatively effect the engine performance.

Closed throttle position switch
1. Turn the ignition switch to OFF and the throttle valve to the closed throttle position.
2. Disconnect the throttle position sensor connector.
3. Loosen the throttle position sensor screws.







4. Rotate the throttle position sensor and adjust continuity between the sensor terminals C and D as shown.




Specification

5. Tighten the throttle position sensor screws.

Tightening torque: 1.6-2.3 Nm (14-20 in.lb)

Variable resistor
1. Remove the ECM.




2. Connect the SSTs to the ECM connector as shown.
3. Verify that the throttle valve is fully closed.
4. Loosen the attaching screws.
5. Turn the ignition switch to ON.
6. Measure the ECM terminal 2M voltage.
7. Adjust the voltage to the specification -

Fully closed: 0.1-1.1 Volts
Fully open: 3.1-4.5 Volts
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle)

8. Tighten the attaching screws.

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

9. If not adjustable, replace the throttle position sensor.