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:
External audio source volume
If an external devices such as an MP3 player or
an iPod is connected to the AUX socket, the
device's volume may be different from the volume
of the internal sound sources such as the
disc play ...
Oil volume
...
