Aura L4-2.4L (2008)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor 2 Replacement
Heated Oxygen Sensor 2 Replacement
Tools Required
J 39194-C Oxygen Sensor Wrench
Removal Procedure
Notice: The oxygen sensor uses a permanently attached pigtail and connector. Do not remove the pigtail from the oxygen sensor. Damage to or removal
of the pigtail connector could affect proper operation of the oxygen sensor.
Notice: The use of excessive force may damage the threads in the exhaust manifold/pipe.
Important:
*
The in-line connector and louvered end must be kept clear of grease, dirt or other contaminants. Avoid using cleaning solvents of any
type. DO NOT drop or roughly handle the heated oxygen sensor (HO2S).
*
The HO2S may be difficult to remove when the engine temperature is less than 48°C (120°F).
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Service Intervals).
2. Remove the connector position assurance (CPA) retainer.
3. Disconnect the HO2S electrical connector (2) from the engine wiring harness electrical connector (1).
