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:
Unleaded fuel
Each Volvo has a three-way catalytic converter and must use only unleaded gasoline.
U.S. and Canadian regulations require that pumps delivering unleaded gasoline be
labeled "UNLEADED". O ...
Trailer Stability Assist (TSA)
Trailer Stability Assist is a system designed to
help stabilize a vehicle that is towing a trailer
when the vehicle and trailer have begun to
sway and is part of the Dynamic Stability and
Trac ...
Heated front seats
The current seat temperature is shown in the center console display
Press the button once for the highest heat level – three indicator lights come
on.
Press the button twice for a lower heat l ...
