mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

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Heated Oxygen Sensor: Service and Repair
Front Bank

EGO Sensor Wrench

SPECIAL SERVICE TOOLS

REMOVAL

1. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.
2. Remove the engine splash shield.

3. Remove the heated oxygen sensor.

INSTALLATION

1. Use the Oxygen Sensor Wrench to install the heated oxygen sensor.
2. To install; reverse the removal procedure.

Front Bank|Page 669 > < Diagram Information and Instructions|Page 666