Hyundai Sonata: Intake Air Temperature Sensor (IATS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Sonata: 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. ...

    Intake Air Temperature Sensor (IATS). Specifications
    Specification Temperature Resistance (kΩ) °C °F -40 -40 40.93 ~ 48.35 -20 ...

    See also:

    Components and Components Location - Revised
    Components 1. Sub frame 2. Lower arm 3. Front disc 4. Drive shaft 5. Steering gearbox 6. Front stabilizer bar 7. Front strut assembly ...

    Engine compartment
    ■ 2.4 GDI 1. Engine coolant reservoir 2. Engine oil filler cap 3. Brake fluid reservoir 4. Air cleaner 5. Fuse box 6. Positive battery terminal 7. Negative battery terminal 8. Windshie ...

    Specifications
    Specifications Item Specification Power source DC 14.4V (-) ground Frequency range / Channel space FM : 87.9 ~ 107.9 ...