Hyundai Ioniq (AE): Engine Control System / Mass Air Flow Sensor (MAFS). Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Control/Fuel System / Engine Control System / Mass Air Flow Sensor (MAFS). Repair procedures

Inspection
1.
Check the MAFS visually.
–
Mounting direction correct.
–
Any contamination, corrosion or damage on connector.
–
Air cleaner's clogging or wet.
–
MAFS cylinder's deforming or blocking by any foreign material.
2.
Check any leakage on intake system and intercooler system.
Removal
1.
Turn the ignition switch OFF and disconnect the battery (-) cable.
2.
Disconnect the mass air flow sensor connector (A) and the installation clamp (B).
3.
Remove the mass air flow sensor (C).

Installation
   
•
Install the component with the specified torques.
•
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
   
•
Be careful not to damage the sensing element and the honey cell.
1.
Install in the reverse order of removal.
Mass air flow sensor installation bolt :
2.9 - 4.9 N.m (0.3 - 0.5 kgf.m, 2.2 - 3.6 lb-ft)
Mass air flow sensor clamp installation bolt :
2.9 - 4.9 N.m (0.3 - 0.5 kgf.m, 2.2 - 3.6 lb-ft)

    Circuit Diagram

    DescriptionIntake 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.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Temperature Sensor. Repair procedures

    Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.Specification Evaporator core temperature [°C (°F)] Resistance [KΩ]

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Ambient Temperature Sensor. Description and operation

    DescriptionThe ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature.The sensor output will be used for discharge temperature control, temperature regulation door contrl, blower m

    Categories

     
    Copyright © 2026 www.hioniqae.com - 0.0169