Hyundai Azera: Manifold Absolute Pressure Sensor (MAPS) Description and Operation
Fifth generation HG (2011–2024) / Hyundai Azera 2011-2024 Service Manual / Engine Control/Fuel System / Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation
Fifth generation HG (2011–2024) / Hyundai Azera 2011-2024 Service Manual / Engine Control/Fuel System / Engine Control System / 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.
Intake Air Temperature Sensor (IATS) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the IATS connector.
3.
Measure resistance between the IATS terminals 3 and 4.
4.
Check that the resistance is within the speci ...
Manifold Absolute Pressure Sensor (MAPS) Specifications
Specification
Pressure [kPa (kgf/cm?, psi)]Output Voltage (V)20.0 (0.20, 2.90)0.7946.66 (0.47, 6.77)1.84101.32 (1.03, 14.7)4.0
...
See also:
Panoramaroof Motor Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the roof trim.
(Refer to Body - "Roof Trim Assembly")
3.
Disconnect the panoramaroof motor (A) connector.
4.
Gro ...
Recommended SAE viscosity number
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 when the vehicle ...
Center Muffler Repair procedures
Removal and Installation
1.
Disconnect the battery negative terminal.
(Refer to Engine Electrical System - "Battery")
2.
Remove the catalytic converter & center muffler assembly (A).
...
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