Heated Oxygen Sensor (Ho2S) Removal/Installation: Notes
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
- A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
- Remove the battery cover.
- Disconnect the negative battery cable.
- Remove the plug hole cover.
- Disconnect the HO2S connector.
- Remove in the order indicated in the table.