Kia Niro: Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and operation
| Description |
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor 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 made of silicon diaphragm, which has the pressure sensitive variable resistor effect of semi-conductor. One side of silicon diaphragm is 100% vacuum and manifold pressure is applied on the other side. Hence, output is gained from the silicon variation in proportion to the pressure change.
Manifold Absolute Pressure Sensor (MAPS) Specifications
Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V) [Vref = 5V]
20.0 (0.20, 2.9)
0.79
46.7 (0.47, ...
Manifold Absolute Pressure Sensor (MAPS) Schematic diagrams
Circuit Diagram
Harness Connector
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Filler-Neck Assembly Repair procedures
Removal
1.
Open the fuel filler door.
2.
Switch "OFF" the ignition and disconnect the negative (-) terminal of
the auxiliary 12V battery.
3.
Remove the filler-neck assembly mounting bolt (A).
...
Kia Niro (DE HEV) Owners Manual: Instrument Cluster Control
Adjusting Instrument Cluster Illumination
WARNING
Never adjust the instrument cluster while driving. This could result in loss
of control and lead to an accident that may cause death, serious injury, or property
damage.
The brightness of the instrument panel illumination is changed by press ...
