Inspect Throttle Position Sensor

1. Inspect throttle valve
- Disconnect the vacuum hose from the throttle opener.
- Apply vacuum to the throttle opener.
- Check that there is no clearance between the throttle stop screw and throttle lever when the throttle valve is fully closed.
- Reconnect the vacuum hose to the throttle opener.

2. Inspect throttle position sensor.

A. If necessary, adjust throttle position sensor





- Loosen the 2 set screws of the sensor.





- Insert a 0.50 mm (0.020 in.) feeler gauge between the throttle stop screw and stop lever.
- Connect the test probe of an ohmmeter to the terminals IDL1 and E2 of the sensor.





- Gradually turn the sensor clockwise until the ohmmeter deflects, and secure it with the 2 set screws.








- Recheck the continuity between terminals IDL1 and E2.






3. w/TRAC:
INSPECT SUB-THROTTLE ACTUATOR, SUB-THROTTLE VALVE AND SUB-THROTTLE POSITION SENSOR
A. Inspect sub-throttle actuator
- Using an ohmmeter, measure the resistance between the terminals (ACM ~ A and A -, BCM ~ B and B-).

Resistance: At 20°C (68°F): 0.5 - 1.0 Ohms

- If the resistance is not as specified, replace the actuator.





B. Inspect sub-throttle actuator
- Remove the 4 screws and sub-throttle actuator.






C. Inspect sub-throttle valve
- Check that there is no clearance between the throttle stop screw and throttle valve gear when the sub- throttle valve is fully closed.








D. Inspect sub-throttle position sensor
- Insert a 0.30 mm (0.012 in.) or 0.50 mm (0.020 in.) feeler gauge between the throttle stop screw and throttle valve gear.
- Using an ohmmeter, measure the resistance between terminals.






E. If necessary, adjust sub-throttle position sensor
- Loosen the 2 set screws of the sensor.





- Insert a 0.40 mm (0.016 in.) feeler gauge, between the throttle stop screw and throttle valve gear.
- Connect the test probe of an ohmmeter to the terminals IDL2 and E2 of the sensor.






- Set that the sub-throttle valve is fully closed.
- Gradually turn the sensor clockwise until the ohmmeter deflects, and secure it with the 2 set screws.









- Recheck the continuity between terminals IDL2 and E2.





F. Reinstall sub - throttle actuator
- Install the sub-throttle actuator with the 4 screws.