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.

    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.

    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: Repair procedures

    Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Climate Control Air Filter. Repair procedures

    Replacement1.Disconnect the air damper (A) from the glove box (B).2.Remove the stopper (B) from the glove box (A).3.Remove the filter cover (A) by pressing the knob.4.Replace the air filter (A) with a new one according to the direction of air filter.    â€¢ To remove the filter easily, press the right side inwa

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