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

Hyundai Ioniq (AE) 2017-2025 Service 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) 2017-2025 Service Manual: Special service tools

S..

Hyundai Ioniq (AE) 2017-2025 Service Manual: Smart Key. Repair procedures

Smart KeySmart Key Code Saving1.Connect the DLC cable of GDS to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on GDS.2.Select the vehicle model and then do "Smart Key Code Saving".3.After selecting "Smart Key Teaching" menu, push "Enter" key, then the screen will be shown as below...

Categories

Rear Seats

Folding the rear seat

The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle.

WARNING

Never allow passengers to sit on top of the folded down seatback while the vehicle is moving. This is not a proper seating position and no seat belts are available for use. This could result in serious injury or death in case of an accident or sudden stop. Objects carried on the folded down seatback should not extend higher than the top of the front seatbacks. This could allow cargo to slide forward and cause injury or damage during sudden stops.