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

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / 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.

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

•	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.

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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