Civic EX Sedan L4-1668cc 1.7L SOHC (VTEC) MFI (2001)
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Oxygen Sensor: Service and Repair
Primary HO2S and A/F Sensor Replacement
Primary HO2S and A/F Sensor Replacement
Special Tools Required
O2 sensor wrench, Snap-on YA8875, SP Tools 93750, or equivalent, commercially available
1. Disconnect the primary HO2S or A/F sensor 4P connector (A), then remove the primary HO2S or A/F sensor (B).
2. Install the primary HO2S or A/F sensor in the reverse order of removal.