Hyundai Ioniq (AE): Engine Control System / Mass Air Flow Sensor (MAFS). Description and operation

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

Description

MAFS uses a hot-film type sensing element to measure the mass of intake air entering the engine, and send the signal to ECM.

A large amount of intake air represents acceleration or high load conditions while a small amount of intake air represents deceleration or idle.

The ECM uses this information to control the EGR solenoid valve and correct the fuel amount.

❮Repair procedures

Inspection1.Connect the GDS on the Data Link Connector (DLC).2.Measure the output voltage of the MAPS at idle and IG ON. Specification : Refer to "Specification"Removal 1.

Mass Air Flow Sensor (MAFS). Specifications❯

Specifications Air Flow (kg/h) Frequency (kHz) -401.49-201.59-101.68-81.7-61.7201.8161.9381.

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse.

Hyundai Ioniq (AE): Engine Control System / Mass Air Flow Sensor (MAFS). Description and operation

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Components and components location

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