Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Throttle Position Sensor: Adjustment
- Turn ignition switch to OFF.
- Loosen throttle position sensor holding screws.
- When using voltage meter;
- Take out ECM.
- Turn ignition switch to ON.
- Adjust throttle position sensor to the proper position to allow the voltage signal to ECM to be in specification.
Connector & terminal / Specified voltage
- (B136) No. 15 - (B136) No. 17/0.45 - 0.55 V
- Fully Closed.
- Tighten throttle position sensor holding screws.
Tightening torque:
- 2.2+/-0.2 N.m (0.22+/-0.02 kg-m, 1.6+/-0.1 ft-lb)
- When using Subaru Select Monitor;
- Turn ignition switch to OFF.
- Loosen throttle position sensor holding screws.
Use the Manual With the Right Hardware
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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.
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