October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Front Oxygen (A/F) Sensor: Removal
- Disconnect the ground terminal from battery sensor. Ref. to NOTE>BATTERY
.
- Remove the radiator main fan & fan motor assembly. Ref. to COOLING (EXCEPT FOR STI)>Radiator Main Fan and Fan Motor>REMOVAL
.
- Lift up the vehicle.
- Remove the under cover. Ref. to EXTERIOR/INTERIOR TRIM>Front Under Cover>REMOVAL
.
- Disconnect the connector (A) on the front oxygen (A/F) sensor from the engine wiring harness, and remove the clip (B) which secures the front oxygen (A/F) sensor harness to the water pump cover.
- Apply spray-type lubricant (004301003) to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
- Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.