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.
2016 Hyundai Equus SignatureFACTORY OEM SERVICE PROCEDURE
Repair procedures: Removal
[Bank 1/Sensor 1]
- Turn the ignition switch OFF and disconnect the battery negative (-) cable.
- Disconnect the heated oxygen sensor connector.
- Lift the vehicle.
- Remove the heater protector (B) from the catalytic converter after removing the bolt (A).
- Remove the heated oxygen sensor (C) with the spanner after lifting the heater protector (B).
[Bank 1/Sensor 2]
- Turn the ignition switch OFF and disconnect the battery negative (-) cable.
- Disconnect the heated oxygen sensor connector (B).
- Lift the vehicle.
- Remove the heated oxygen sensor (A).
[Bank 2/Sensor 1, Bank 2/Sensor 2]
- Turn the ignition switch OFF and disconnect the battery negative (-) cable.
- Lift the vehicle.
- Disconnect the heated oxygen sensor connector (A).
- Remove the heated oxygen sensor (B).
[Bank 2/Sensor 1]
[Bank 2/Sensor 2]
Factory Service Tools
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.