Secondary HO2S Replacement
Front Secondary HO2S (Bank 2) ReplacementSpecial Tools Required
O2 sensor socket wrench. Snap-on YA8875, SP Tools 93750, or equivalent, commercially available
1. Disconnect the front secondary HO2S (bank 2) 4P connector (A), then remove the front secondary HO2S (B).
2. Install the front secondary HO2S in the reverse order of removal.
Rear Secondary HO2S (Bank 1) Replacement
Special Tools Required
O2 sensor socket wrench. Snap-on YA8875, SP Tools 93750, or equivalent, commercially available
1. Disconnect the rear secondary HO2S (bank 1) 4P connector (A), then remove the rear secondary HO2S (B).
2. Install the rear secondary HO2S in the reverse order of removal.