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XC90 AWD V8-4.4L VIN 85 B8444S (2005)

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Service and Repair > Adapter Wiring Switch, Replacing > Page 4118

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Install:

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new4 gaskets

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the 2 intermediate pipes

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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

Install:

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the lower engine cover

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the 6 screws; tighten.

Replacement of heated oxygen sensors, cylinder 1, 3, 5 and 7 (bank 1)

Removal

Removing protective plate

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Service and Repair > Adapter Wiring Switch, Replacing > Page 4118

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