Throttle Position Sensor: Service and Repair

1996 Subaru Legacy Wagon 4WD F4-2.2L SOHCSECTION Service and Repair



THROTTLE POSITION SENSOR


REMOVAL AND INSTALLATION





1. Disconnect connector from throttle position sensor.
2. Remove throttle position sensor holding screws, and remove it.
3. Installation is in the reverse order of removal.

Tightening Torque: 2.2 ± 0.2 N.m (1.6 ± 0.1 ft-lb).

CAUTION: When installing throttle position sensor, adjust to the specified data.

ADJUSTMENT
1. Turn ignition switch to "OFF".





2. Loosen throttle position sensor holding screws.





3. When using voltage meter;
a. Take out Engine Control Module (ECM).
b. Turn ignition switch to "ON".
c. Adjust throttle position sensor so that signal voltage to ECM may be in specification.

Connector & Terminal: (B84) No. 6 / (B84) No. 21
Specified Voltage: 0.45 - 0.55 Volt (Fully closed)


d. Tighten throttle position sensor holding screws.

Tightening Torque: 2.2 ± 0.2 N.m (1.6 ± 0.1 ft-lb).





4. When using Subaru Select Monitor;
a. Connect Subaru Select Monitor (SSM) to the data link connector.
b. Turn ignition switch to "ON" and SSM switch to "ON'.
c. Select mode "F10".
d. Adjust throttle position sensor to specified data.

Condition: Throttle Fully Closed
Specified Data: 0.50 Volt


e. Tighten throttle position sensor holding screws.

Tightening Torque: 2.2 ± 0.2 N.m (1.6 ± 0.1 ft-lb).

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.