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.
1996 Subaru Impreza Outback, AutomaticFACTORY OEM SERVICE PROCEDURE
Throttle Position (TP) Sensor
NOTE:
All testing procedures are performed with engine at normal operating temperature. For further TP sensor diagnosis, see appropriate TESTS W/CODES
article.
- Turn ignition on. With throttle fully closed, check and record voltage to ground at specified ECM terminals. See TP SENSOR SPECIFICATIONS table.
- If necessary, loosen retaining screws and rotate TP sensor until correct voltages are obtained. Replace TP sensor if voltage cannot be adjusted to specification.
TP SENSOR SPECIFICATIONS
| Throttle Position & Terminal No. | Specification | ||
|---|---|---|---|
| Terminal No. 6 & 20 (1) | 0.4-0.5 Volts | ||
|
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Factory Service Tools
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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.