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Power Steering Pressure Switch > < Primary HO2S and A/F Sensor Replacement|Page 775

Civic L4-1668cc 1.7L SOHC MFI (2003)

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Oxygen Sensor: Service and Repair
Third HO2S Replacement

Third HO2S Replacement

Special Tools Required

O2 sensor wrench, Snap-on YA8875, SP Tools 93750, or equivalent, commercially available

NOTE:  The secondary HO2S and the third HO2S must be replaced together.

1. Disconnect the third HO2S 4P connector (A), then remove the third HO2S (B).
2. Install the third HO2S in the reverse order of removal.

Power Steering Pressure Switch > < Primary HO2S and A/F Sensor Replacement|Page 775