Kia Optima: Intake Air Temperature Sensor (IATS) Description and Operation - Engine Control System - Engine Control/Fuel SystemKia Optima: Intake Air Temperature Sensor (IATS) Description and Operation

Description
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature.
To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM uses not only MAPS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) Thermister and it''s resistance changes in reverse proportion to the temperature.


Manifold Absolute Pressure Sensor (MAPS) Repair procedures
Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the MAPS at idle and IG ON. Test ConditionOutput Voltage (V)IG ON3.9 ~ 4.1Idle0.8 ~ 1.6 ...

Intake Air Temperature Sensor (IATS) Specifications
Specification Temperature [°C(°F)]Resistance (k?)-40(-40)40.93 ~ 48.35-20(-4)13.89 ~ 16.030(32)5.38 ~ 6.0910(50)3.48 ~ 3.9020(68)2.31 ~ 2.5740(104)1.08 ~ 1.2150(122)1.56 ~ 1.7460(140)0.54 ~ 0.6 ...

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Specifications
The specifications given here are for general information only. Please check with an authorized Kia dealer for more precise and more up-to-date information. DIMENSIONS Unit: in (mm) WEIGHTS Ref ...

Engine Oil. Repair procedures
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Speakers Repair procedures
Inspection 1. Troubleshooting for Speaker (1) Basic inspection of speaker Inspect the sound from speaker after verifying that the speaker mounting screws are removed and the wiring connector ...

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