Hyundai Elantra: Engine Control System / Intake Air Temperature Sensor (IATS) Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Engine Control/Fuel System / Engine Control System / 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. ConditionOutput Voltage (V)IG ON3.9 ~ 4.1Idle0.8 ~ 1.6 Remo ...

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)0.76 ~ 0.8560(140)0.54 ~ 0.6 ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Cylinder Block Repair procedures
Disassembly • Use fender covers to avoid damaging painted surfaces. • To avoid damaging the cylinder head, wait until the engine coolant temperature drops below normal temperature (20°C [68°F]) before removing it. • When handling a metal gasket, ...

Hyundai Elantra AD (2016-2020) Service Manual: Dynamic Damper Repair procedures
Removal 1. Remove the front driveshaft. (Refer to Driveshaft Assembly - "Front Driveshaft") 2. Remove the TJ joint assembly. (Refer to Driveshaft Assembly - "TJ Joint") 3. Remove the remove the both side of band (B) of the dynamic damper (A). 4. Fix the driveshaft (A) with a vice ...