Throttle Position Sensor: Adjustment

1. Take out ECM.
2. Turn ignition switch to ON.
3. Adjust throttle position sensor to the proper position to allow the voltage signal to ECM to be in specification.

Connector & terminal / Specified voltage 

1. (B136) No. 15 - (B136) No. 17 / 0.45 - 0.55 V 
2. [Fully closed.] 

Fig 2: Measuring Throttle Position Sensor Connector Terminals Voltage

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1. Tightening torque:  1.6 N.m (0.16 kgf-m, 1.2 ft-lb)

Fig 3: Tightening Throttle Position Sensor Holding Screws

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1. Turn ignition switch to OFF.
2. Loosen throttle position sensor holding screws.
   Fig 4: Loosening Throttle Position Sensor Holding Screws

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   NOTE: For detailed operation procedures, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
3. Insert the cartridge to Subaru Select Monitor. Refer to PREPARATION TOOL , General Descriptions.
4. Connect Subaru Select Monitor to the data link connector (A).
   Fig 5: Connecting Subaru Select Monitor To Data Link Connector

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5. Turn ignition switch to ON, and Subaru Select Monitor switch to ON.
6. Select {2. Each System Check} in Main Menu.
7. Select {Engine Control System} in Selection Menu.
8. Select {1. Current Data Display & Save} in Engine Control System Diagnosis.
9. Select {1.12 Data Display} in Data Display Menu.
10. Adjust throttle position sensor to the proper position to match with the following specifications.

    Condition: Throttle fully closed 

    1. Throttle opening angle 0.00% 
    2. Throttle sensor voltage 0.50 V 
11. Tighten throttle position sensor holding screws.
    1. Tightening torque:  1.6 N.m (0.16 kgf-m, 1.2 ft-lb)
    Fig 6: Tightening Throttle Position Sensor Holding Screws

    Courtesy of SUBARU OF AMERICA, INC.