Hyundai Sonata: 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.
ETC (Electronic Throttle Control) System. Repair procedures
Inspection
Throttle Position Sensor (TPS)
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Start the engine and measure the output v ...
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:
Passenger Airbag (PAB) Module. Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three
minutes before beginning work.
2.
Remove the glove box housin ...
To defog inside windshield
1. Select any fan speed except “0” position.
2. Select desired temperature.
3. Select the or
position.
4. The outside (fresh) air will be selected automatically.
If the outside (fresh) ai ...
Rear Wheel Speed Sensor. Components and Components Location
Components
1. Rear wheel speed sensor cable
2. Rear wheel speed sensor
...