Kia Optima: Intake Air Temperature Sensor (IATS) Repair procedures - Engine Control System - Engine Control/Fuel SystemKia Optima: Intake Air Temperature Sensor (IATS) Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the IATS connector.
3.
Measure resistance between the IATS terminals 3 and 4.
4.
Check that the resistance is within the specification.
Temperature [°C(°F)]
Resistance (k?)
-40(-40)
40.93 ~ 48.35
-20(-4)
13.89 ~ 16.03
0(32)
5.38 ~ 6.09
10(50)
3.48 ~ 3.90
20(68)
2.31 ~ 2.57
40(104)
1.08 ~ 1.21
50(122)
1.56 ~ 1.74
60(140)
0.54 ~ 0.62
80(176)
0.29 ~ 0.34

Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the manifold absolute pressure sensor connector (A).
3.
Remove the mounting bolt (B), and then remove the sensor from the surge tank.

Installation


Installation
   
   
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
Insert the sensor in the installation hole and be careful not to damage when installation.
1.
Install in the reverse order of removal.

Manifold absolute pressure sensor mounting bolt:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

Intake Air Temperature Sensor (IATS) Schematic Diagrams
Circuit Diagram ...

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Removal
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