Hyundai Genesis DH Quiz
Engine Control System/Fuel System

Intake Air Temperature (IAT) Sensor Description and Operation

In this manual: Engine Control System/Fuel System
General Information — 9Engine Mechanical System — 103Engine Electrical System — 54Emission Control System — 23Engine Control System/Fuel System — 127Automatic Transmission System (SBC) — 90All-Wheel Drive (AWD) System — 20Drive Shaft and Axle — 27Suspension System — 41Steering — 19Restraints — 56Brake System — 56Body (Interior and Exterior) — 211Body Electrical System — 279Heating, Ventilation, and Air Conditioning — 55
~1min read

Description

The Intake Air Temperature Sensor (IATS) is built into the barometric pressure sensor and detects the intake air temperature. To calculate the accurate air volume, air temperature correction is necessary because air density changes with temperature. Therefore, the ECM uses both the BPS signal and the IATS signal. This sensor has a negative temperature coefficient (NTC) thermistor, and its resistance changes inversely with temperature.

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A quick Hyundai Genesis DH quiz: every answer comes with an explanation and a link to the manual page.