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:
Recommended SAE viscosity
number
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, or
dipstick before checking or draining
any lubricant. This is especially
important in dusty or sandy areas
and ...
Fuel Pressure Control Valve. Description and Operation
Description
Fuel Pressure Regulator Valve is installed on the high pressure
fuel pump and controls fuel flow flowing into the injectors in accordance with
the ECM signal calculated based on var ...
Disassembly
Identify MLA(Mechanical Lash Adjuster), valves, valve springs as they are
removed so that each item can be reinstalled in its origina ...