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.
2017 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE
Oxygen sensor (FA20): Removal
- Disconnection of the battery ground terminal (Refer to Working precautions and notes )
- Removal of front tire RH
- Removal of under cover front AL (Refer to Removal )
- Disconnection of under cover front side RH
- Remove 3 clips, and disconnect the under cover front side RH.
- Removal of oxygen sensor
- Disconnect the connector for oxygen sensor and the 2 clamps.
- Remove the oxygen sensor from the exhaust manifold.
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.
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