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:
Tips for towing a stuck vehicle
The following methods are effective when your vehicle is stuck in mud, sand or
similar substances that prevent the vehicle from being driven out under its own
power.
Remove the soil and sand, ...
Disassembly
Universal joint assembly
1.
Loosen the bolt (A) and then
disconnect the universal joint assembly from the steering column assembly.
2.
Reassembly is the reverse of ...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Using the screwdriver, remove
the side cover (A).
3.
Loosen the mounting screw and
the ...