LS 460 AWD V8-4.6L (1UR-FSE) (2009)
(a) Remove the 3 hole seals, 4 grommets and cover.
9. REMOVE FRONT FLOOR CENTER BRACE
(a) Remove the 4 bolts and brace.
10. REMOVE FRONT CENTER FLOOR COVER (for AWD) See: Engine/Service and Repair/Removal and Replacement/Engine/Removal
11. DISCONNECT HEATED OXYGEN SENSOR (for 2WD)
(a) Disconnect the 2 grommets from the floor panel.
(b) Using SST, loosen the sensors, and then disconnect the sensors by hand.
HINT: Rotate the sensor counterclockwise to remove it from the front exhaust pipe, and record how many times it was rotated.
NOTE:
Do not strike the metal part of the sensor.
SST: 09224-00010
12. DISCONNECT HEATED OXYGEN SENSOR (for AWD)
(a) for Bank 1:
Disconnect the sensor connector.