mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Engine Controls/Emissions - OBD II Diagnosis Aid|Page 1826 > < Engine Controls/Emissions - OBD II Diagnosis Aid|Page 1824
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Oxygen Sensor: Service and Repair

HEATED OXYGEN SENSOR (HO2S) REMOVAL / INSTALLATION

1. Remove the air cleaner outlet tube. 

2. Disconnect the HO2S electrical connector.

3. Remove the heated oxygen sensors (HO2S) from the exhaust manifolds.

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If necessary, lubricate the heated oxygen sensors to assist in removal.

4. Raise and support the vehicle, see LIFTING.

5. Disconnect the HO2S electrical connector.

Engine Controls/Emissions - OBD II Diagnosis Aid|Page 1826 > < Engine Controls/Emissions - OBD II Diagnosis Aid|Page 1824