LS 460 AWD V8-4.6L (1UR-FSE) (2009)
(b) for Bank 2:
Disconnect the grommet from the floor panel.
Using SST, loosen the sensor, and then disconnect the sensor 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.
13. REMOVE FRONT EXHAUST PIPE ASSEMBLY
(a) Temporarily loosen the 8 bolts on the tailpipe and manifold sides.
(b) Remove the 4 nuts and 4 bolts from the exhaust manifold LH and RH.
HINT: During removal, hold the exhaust pipe.
(c) Remove the 4 bolts from the tailpipe LH and RH. Then remove the front exhaust pipe.
HINT: During removal, hold the exhaust pipe.
(d) Remove the 2 gaskets from the exhaust manifold side, and the 2 gaskets from the tailpipe side.
14. REMOVE HEATED OXYGEN SENSOR (for AWD)
NOTE:
Do not strike the metal part of the sensor.