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:
How do states use OBD II for emission inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can
then read "faults." In some states, this type of
inspection has replaced the tailpipe emission
...
Recalibrating TPMS (Canadian models only)
In certain cases, it may be necessary to recalibrate TPMS to conform to Volvo's
recommended tire inflation pressures (see the inflation pressure table on page 275),
for example, if higher infl ...
Quality and equipment
'A small Volvo is built to the same high standard as a big Volvo,' says Hakan
Abrahamsson, C30 project director. 'The quality levels are the same. We have
Volvo standards and we don't differentiate ...