mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

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Heated Oxygen Sensor: Service and Repair
Rear Bank

EGO Sensor Wrench

SPECIAL SERVICE TOOLS

REMOVAL

1. Remove the ignition coil. 

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

4. Remove the heated oxygen sensor.

INSTALLATION

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