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:
Smooth cornering
Avoid braking or gear changing in corners, especially when roads are wet. Ideally,
corners should always be taken under gentle acceleration. If you follow these suggestions,
tire wear will be ...
Auto Light Sensor. Repair procedures
Inspection
In the state of IGN1 ON, when multi function switch module detects auto
light switch on, tail lamp relay output and head lamp low relay output are controlled
according to auto lig ...
Schematic Diagrams
Schematic Diagram
...