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XC90 AWD L6-2.9L Turbo VIN 91 B6294T (2004)

Sensors and Switches > Sensors and Switches - HVAC > Climate Control Exhaust Gas Sensor > Component Information > Locations > Page 1931

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If the air quality sensor and the other electronics are fault free, the damper for the air intake should close very soon.
If the air quality sensor is fault free, the damper for the air intake will gradually open after approximately 15 seconds.

Installing the air quality sensor

Wipe away any excess rust solvent or windshield washer fluid around the sensor.
Install the plenum chamber. See Cowl, replacing See: Body and Frame/Cowl/Cowl Moulding / Trim/Service and Repair.

Note! Cover the air intake to the passenger compartment when the engine compartment or the car is being treated with wax or preserving
agent.

Sensors and Switches > Sensors and Switches - HVAC > Climate Control Exhaust Gas Sensor > Component Information > Locations > Page 1931

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