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HOMESERVICE MANUALSSUBARU2002FORESTER BASEREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION (FUEL SYSTEMS)THROTTLE POSITION SENSORADJUSTMENT
2002 Subaru Forester Base

Throttle Position Sensor: Adjustment

2002 Subaru Forester BaseSECTION Adjustment
  1. Turn ignition switch to OFF.
  2. Loosen throttle position sensor holding screws.
    Fig 1: Loosening Throttle Position Sensor Holding Screws
    G02861862Courtesy of SUBARU OF AMERICA, INC.
  3. When using voltage meter;
    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: Checking Voltage Between Throttle Position Sensor Terminals (B136) No. 15 And (B136) No. 17
      G02861863Courtesy of SUBARU OF AMERICA, INC.
    4. Tighten throttle position sensor holding screws.

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

    Fig 3: Tightening Throttle Position Sensor Holding Screws
    G02861864Courtesy of SUBARU OF AMERICA, INC.
  4. When using Subaru Select Monitor;
    1. Turn ignition switch to OFF.
    2. Loosen throttle position sensor holding screws.
      Fig 4: Loosening Throttle Position Sensor Holding Screws
      G02861865Courtesy of SUBARU OF AMERICA, INC.
RENDER: 1.0x

NO RELATED

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

  • • You smell fuel, burning insulation, or see smoke.
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  • • 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.