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:
Location of the fuse boxes
Engine compartment
Under the glove compartment
Under the glove compartment
Trunk
Not in use
...
Quality and equipment
A passion for high quality lies at the heart of the Volvo brand. This is
inherent not only in the build quality that reflects the ruggedness, durability
and reliability for which Volvo is renowned ...
Paint touch up
Model plate with paint color code
Paint damage requires immediate attention to
avoid rusting. Make it a habit to check the finish
regularly – when washing the vehicle for
instance. Touch-up if n ...
