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.

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HOMESERVICE MANUALSSUBARU2004OUTBACK BASE, 4D WAGON, EJ251, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSFUEL INJECTION (FUEL SYSTEMS) (H4SO)THROTTLE POSITION SENSORREMOVAL

2004 Subaru Outback Base, 4D Wagon, EJ251, Standard

Throttle Position Sensor: Removal

2004 Subaru Outback Base, 4D Wagon, EJ251, StandardSECTION Removal

Disconnect ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.
Disconnect connector from throttle position sensor.

Fig 2: Disconnecting Connector From Throttle Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Remove throttle position sensor holding screws, and remove it.

Fig 3: Removing Throttle Position Sensor
Courtesy of SUBARU OF AMERICA, INC.

RENDER: 1.0x

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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.