FUEL INJECTION (FUEL SYSTEMS)(H4DO 1.5) > Front Oxygen (A/F) Sensor
1. Set the vehicle on a lift.
2. Disconnect the ground cable from battery.
4. Disconnect the front oxygen (A/F) sensor connector (A) and remove the clip (B) fastening the harness.
5. Lift up the vehicle.
6. Remove the under cover.
7. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
8. Remove the front oxygen (A/F) sensor (A).
CAUTION:
When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.