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. Connect the SSTs to the PCM.
2. Verify that the throttle valve is closed throttle position.
3. Loosen the attaching screws.
4. Turn the ignition switch to ON.




5. Adjust the throttle position sensor so that the PCM terminal 3F voltage is as specified.

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.)

6. Tighten the attaching screws.

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

7. If not adjusted, inspect the throttle position sensor harness.
8. If harness is OK, replace the throttle position sensor.