Heated oxygen sensors

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Safety
Like all Volvo models, the XC90 features a comprehensive safety package
designed to protect occupants in a wide variety of accidents. Given the higher
centre of gravity of an SUV, however, there h ...
Turning off (stopping) the alarm
If the alarm is sounding, it can be stopped by
pressing the Unlock button on the remote key
or by inserting the remote key in the ignition
slot. Two short flashes from the car's direction
indi ...
Taking out the spare wheel
1. Release the bag's retaining straps.
2. Lift the bag out of the vehicle and remove the spare wheel from the bag.
3. Fold up the floor hatch in the trunk.
4. Remove the jack* and tools* from t ...
