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:
C30 in the Market
Battaglia says the C30 is designed to bring younger buyers to the Volvo
brand. Lots of automakers talk about developing a young buyer base, but only a
few actually seem to come up with a product t ...
Volvo's concern for safety
Safety is Volvo's cornerstone. Our concern
dates back to 1927 when the first Volvo rolled
off the production line. Three-point seat belts
(a Volvo invention), safety cages, and energyabsorbing
...
Use of Additives
With the exception of gas line antifreeze during winter months, do not add solvents,
thickeners, or other store-bought additives to your vehicle's fuel, cooling, or
lubricating systems. Overus ...
