SX4 4WD L4-2.0L (2008)
Oxygen Sensor: Service and Repair
Air Fuel Ratio (A/F) Sensor, Heated Oxygen Sensor (HO2S) Removal and Installation
Reference: Air Fuel Ratio (A/F) Sensor On-Vehicle Inspection
Reference: Heated Oxygen Sensor (HO2S) Heater On-Vehicle Inspection
Removal
WARNING: To avoid danger of being burned, do not touch exhaust system when system is hot. A/F sensor and/or HO2S removal should be
performed when system is cool.
1. Disconnect negative cable at battery.
2. Disconnect connector of A/F sensor and/or HO2S.
3. Remove A/F sensor (1) and/or HO2S (2) from exhaust No.1 pipe.
Installation
Reverse removal procedure noting the following.