XC90 L5-2.5L Turbo VIN 59 B5254T2 (2004)
Switch off the ignition.
Remove the air cleaner (ACL) housing.
Detach the inlet hose between the air cleaner (ACL) and the turbocharger (TC) from the turbocharger (TC).
Open the catches and disconnect both the connectors for the heated oxygen sensors (HO2S).
Heated oxygen sensors (HO2S), removing
See Heated oxygen sensor (HO2S), replacing See: Heated Oxygen Sensor (HO2S), Replacing.
Installing the adapter cable