How do I Change the O2 Sensor on a 2002 Hyundai Santa Fe?
- 1). Raise the Santa Fe with a jack and support it on a set of jack stands. Locate the oxygen (O2) sensors along the exhaust system.
- 2). Pull the electrical connection from the top of the oxygen sensor. Remove the existing sensor with an oxygen sensor socket and ratchet.
- 3). Thread the new oxygen sensor into place by hand to avoid the risk of cross threading and damaging the sensor. Torque the sensor to 40 pound-feet with your torque wrench. Push the electrical connector back into place until it clicks.
- 4). Repeat the process on the second sensor, if needed. Raise the car slightly with the jack to remove the jack stands. Lower the car to the ground.
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