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 (DE HEV) Owners Manual: Driving with a trailer
Towing a trailer requires a certain amount of experience. Before setting out
for the open road, you must get to know your trailer. Acquaint yourself with the
feel of handling and braking with the added weight of the trailer. And always keep
in mind that the vehicle you are driving is now a goo ...
Kia Niro 2017 (DE HEV) Service Manual: High voltage shut-off procedures
High Voltage Shut-off Procedures
•
Be sure to read and follow the “General Safety Information and
Caution” before doing any work related with the high voltage system.
Failure t ...
