Manifold Absolute Pressure Sensor (MAPS) is a speed-density
type sensor and is installed on the surge tank. It senses absolute
pressure of the surge tank and transfers the analog signal proportional
to the pressure to the ECM.
By using this signal, the ECM calculates the intake air quantity and engine speed.
The MAPS consists of a piezo-electric element and a hybrid IC
amplifying the element output signal. The element is silicon diaphragm
type and adapts pressure sensitive variable resistor effect of
semi-conductor.
Because one side of the silicon diaphragm is 100% vacuum and
the other is affected by the manifold pressure, this sensor can output
analog signal by using the silicon variation proportional to pressure
change.

Other information:
Have coolant changed by an authorized
HYUNDAI dealer according to
the Maintenance Schedule at the
beginning of this chapter.
WARNING
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the wind ...
Towing service
If emergency towing is necessary,
we recommend having it done by an
authorized HYUNDAI dealer or a
commercial tow-truck service.
Proper lifting and towing procedures
are necessary to prevent damage to
the vehicle. The use of wheel dollies
or flatbed is recommended.
...