XC90 AWD V8-4.4L VIN 85 B8444S (2005)
the 2 intermediate pipes
the 8 nuts; tighten.
Installing the rear heated oxygen sensor
Install the rear heated oxygen sensor using 999 5543 SOCKET NV-22 HO2S See: Tools and Equipment/999 5543 Socket NV-22 HO2S. Tighten as
specified: See Specifications. Plug in the connector of the rear heated oxygen sensor. Position the connector in the retainer.
Installing the lower engine cover
the lower engine cover
the 6 screws; tighten.
Replacement of heated oxygen sensors, cylinder 1, 3, 5 and 7 (bank 1)
Removing protective plate