Kia Stonic Quiz
Engine Control System/Fuel System

Intake Air Temperature Sensor (IATS)

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 31Engine Mechanical — 49Engine Electrical — 15Emission control system — 11Engine Control System/Fuel System — 45Clutch System — 12Manual Transaxle System — 11DCT (Dual Clutch Transmission) System — 16Drive Shafts and Axles — 9Suspension — 16Steering — 10restraint system — 15Braking system — 22Body (Interior and Exterior) — 89Rear Seat — 16Electrical System — 25Electrochromic Interior Rear View Mirror — 64Heating, Ventilation, and Air Conditioning — 31
7steps
~42min
2/5difficulty
010203040508.36N·mlb·ft
Tightening torque found on this page
Done 0 of 7

Specifications

SPECIFICATIONS

▶ Type: Thermistor type

Temperature Resistance [kΩ]
°C °F
+40 +40 40,93~48,35
-30 -22 23.43 ~ 27.34
+20 +4 13,89~16,03
-10 14 8,5~9,7
0 32 5,38~6,09
10 50 3,48~3,90
20 68 2,31~2,57
30 86 1,9~2,1
40 104 1,08~1,21
50 122 0,76~0,85
60 140 0,54~0,62
70 158 0,40~0,45
80 80 0,29~0,34
90 194 0,22~0,26
100 212 0,17~0,20
110 230 0,13~0,15
120 248 0,10~0,12
130 266 0,08~0,09

Description and Operation

Description

The intake air temperature sensor (IATS), integrated in the MAP sensor, detects the temperature of the intake air.

To accurately calculate the intake air volume, air temperature is required, since air density changes with temperature. Therefore, the ECM uses both the MAP sensor signal and the IATS signal. The thermistor of this sensor has a negative temperature coefficient (NTC), and its resistance is inversely proportional to temperature.

Schematic diagrams

Circuit diagram

repair procedures

TEST

  1. Turn the ignition off.

  2. Disconnect the IAT sensor connector.

  3. Measure the resistance between terminals 3 and 4 of the IAT sensor.

  4. Make sure the resistance is within specification.

    Temperature Resistance [kΩ]
    °C °F
    +40 +40 40,93~48,35
    -30 -22 23.43 ~ 27.34
    +20 +4 13,89~16,03
    -10 14 8,5~9,7
    0 32 5,38~6,09
    10 50 3,48~3,90
    20 68 2,31~2,57
    30 86 1,9~2,1
    40 104 1,08~1,21
    50 122 0,76~0,85
    60 140 0,54~0,62
    70 158 0,40~0,45
    80 80 0,29~0,34
    90 194 0,22~0,26
    100 212 0,17~0,20
    110 230 0,13~0,15
    120 248 0,10~0,12
    130 266 0,08~0,09

expansion

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.

  2. Disconnect the manifold absolute pressure (MAP) sensor connector (A).

  3. Remove the MAP sensor (B) from the intake manifold by loosening the mounting screws.

    MAP sensor mounting screw: 6.4~8.3 N·m

Installation

  1. Installation is the reverse of removal.

Test yourself

A quick Kia Stonic quiz: every answer comes with an explanation and a link to the manual page.