Kia Optima: Manifold Absolute Pressure Sensor (MAPS). Description and Operation
Description
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 100% vacuum and the manifold pressure apply to both sides of the sensor respectively, this sensor can output analog signal by using the silicon variation proportional to pressure change.
Installation
•
Install the component with the specified
torques.
•
Note that internal damag ...
Manifold Absolute Pressure Sensor (MAPS). Specifications
Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V)
20.0 (0.20, 2.9)
0.79
46.7 (0.47, 6.77)
1.84
...
See also:
Fuel Filter. Repair procedures
Replacement
1.
Remove the fuel pump (Refer to “Fuel Pump” in this
group).
2.
Disconnect the electric pump wiring connector (A)
and the fuel sender connecto ...
Engine Exhaust Gas Precautions
WARNING
Engine exhaust gases contain carbon monoxide (CO). Though colorless and odorless,
it is dangerous and could be lethal if inhaled. Follow the instructions below to
avoid CO poisoning. ...
Tire and loading information label
The label located on the driver's door
sill gives the original tire size, cold
tire pressures recommended for your
vehicle, the number of people that
can be in your vehicle and vehic ...