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:
Introduction
All bulb specifications are listed on page 311. The following bulbs should only
be replaced by a trained and qualified Volvo service technician:
Dome lighting
Reading lights
Glove compartmen ...
Tire designations
Information on the sidewall
Federal law mandates that tire manufacturers
place standardized information on the sidewall
of all tires (see the illustration).
The following information is listed ...
Turning off (stopping) the alarm
If the alarm is sounding, it can be stopped by pressing the Unlock button on
the remote key or by inserting the remote key in the ignition slot. Two short flashes
from the car's direction indi ...
