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: Drive Belt Tensioner Repair procedures
Removal and Installation
1.
Remove the drive belt.
(Refer to Drive Belt System - "Drive Belt")
2.
Remove the mechanical tensioner (A).
Tightening torque :
18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb ...
Kia Niro 2017 (DE HEV) Service Manual: Fuel Pump Control Module (FPCM) Schematic diagrams
Circuit Diagram
Terminal Information
Terminal Illustration
Terminal Function
Pin No.
Description
1
Fuel Sender (-)
2
Fuel pressure sensor (FPS) signal inpu ...
