MR2 L4-132 2164cc 2.2L DOHC (5S-FE) (1993)
Oxygen Sensor: Service and Repair
NOTE:
Do not use excessive force to remove the oxygen sensor, especially when the exhaust system is cold. Damage to the pipe may result.
PROCEDURE:
1. Disconnect oxygen sensor electrical connector.
2. Apply a suitable non-silicone penetrating oil the the hold-down nuts and allow to stand.
3. Loosen and remove mounting nuts.
4. Apply anti-seize compound to mounting studs.
5. Install new sensor and nuts.
6. Reconnect electrical connector.