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.
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Vehicle Overview
Long known for safe, solid sedans and wagons, Volvo joined the sport utility
vehicle fray in 2003 with its car-based XC90. The Swedish automaker promised the
ride and handling of a passenger car. ...
Location of the fuse boxes
1 Engine compartment
2 Under the glove compartment
3 Under the glove compartment
4 Cargo area ...
Selecting a channel category
1. Turn TUNE to display a list of channels.
2. Press EXIT.
3. Turn TUNE to scroll through the list of categories and press OK/MENU to make
a selection.
> The channels in the selected category ...
