Aura V6-3.5L (2007)
8. Remove the lower right HO2S electrical connector CPA retainer (1).
9. Disconnect the rear HO2S electrical connector from the engine wiring harness electrical connector (2).
10. Remove the lower left HO2S CPA retainer (3).
11. Disconnect the front engine wiring harness electrical connector (1) from the HO2S electrical connector.