Kia Stinger CK: Engine Control System / Manifold Absolute Pressure Sensor (MAPS)
Specifications
Item
|
Specification
|
Output Voltage (V)
|
5
|
Pressure (KPa)
|
32.5 - 284
|
Operating Voltage (V)
|
4.5 - 5.5
|
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (Vref = 5V)
|
32.5 (0.33, 4.71)
|
0.5
|
70 (0.71, 10.1)
|
1.1
|
270 (2.75, 39.1)
|
4.3
|
284 (2.89, 41.1)
|
4.5
|
Description and operation
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. This silicon diaphragm type element has 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.
Schematic diagrams
Harness Connector
Repair procedures
| 1. |
Connect the KDS on the Data Link Connector (DLC).
|
| 2. |
Measure the output voltage of the MAPS during idle with IG ON.
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (V) [Vref=5V]
|
20.0 (0.20, 2.9)
|
0.79
|
46.7 (0.47, 6.77)
|
1.84
|
101.3 (1.03, 14.7)
|
4.0
|
|
| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
| 2. |
Remove the engine cover.
(Refer to Engine Mechanical System - "Engine Cover")
|
| 3. |
Disconnect the manifold absolute pressure sensor connector (A).
|
| 4. |
Remove the installation bolts (B), and then remove the sensor from the
intake manifold.
|
Manifold absolute pressure sensor installation bolt :
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
|
|
| • |
Install the component to the specified torques.
|
| • |
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
|
| • |
Insert the sensor in the installation hole and be careful not
to damage it.
|
|
| 1. |
Install in the reverse order of removal.
|
Other information:
Kia Stinger (CK) 2018-2023 Service Manual: A/C Pressure Transducer
Description and operation
Description
A/C pressure transducer measures the pressure in high pressure line and converts
it into voltage. Based on the converted voltage, engine ECU controls cooling fan
by operating it at high or low speed. Engine ECU stops the operation of compressor
when the temperature of refrigerant line is too high or low irregularly to optimize
air conditioning system.
Kia Stinger (CK) 2018-2023 Service Manual: SRS Control Module (SRSCM)
Description and operation
Description
The primary purpose of the SRSCM (Supplemental Restraints System Control Module)
is to discriminate between an event that warrants restraint system deployment and
an event that does not. The SRSCM must decide whether to deploy the restraint system
or not. After determining that pretensioners and/or airbag deployment is required,
the SRSCM must supply sufficient power to the pretensioners and airbag igniters
to initiate deployment.
