Hyundai Ioniq: Exhaust Emission Control System / Description and operation

Hyundai Ioniq (AE) 2017-2024 Service Manual / Engine Electrical System / Exhaust Emission Control System / Description and operation

Description
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components.
Modifications to the combustion chamber, intake manifold, camshaft and ignition system form the basic control system.
These items have been integrated into a highly effective system which controls exhaust emissions while maintaining good drivability and fuel economy.
Air/Fuel Mixture Control System [Multiport Fuel Injection (MFI) System]
The MFI system uses signals from the heated oxygen sensor to activate and control the injector installed in the manifold for each cylinder, thus precisely regulating the air/fuel mixture ratio and reducing emissions.
This in turn allows the engine to produce exhaust gas of the proper composition to permit the use of a three way catalyst. The three way catalyst is designed to convert the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances. There are two operating modes in the MFI system.
1.
Open Loop air/fuel ratio is controlled by information pre-programmed into the ECM.
2.
Closed Loop air/fuel ratio is constantly adjusted by the ECM based on information supplied by the oxygen sensor.

    Exhaust Emission Control System

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    Catalytic Converter. Description and operation

    DescriptionThe catalytic converter of the gasoline engine is a three way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides of nitrogen (NOx)...

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    Hyundai Ioniq (AE) 2017-2024 Owner's Manual: LKA system activation


    To see the LKA system screen on the LCD display in the cluster, select SCC/LKA mode () for cluster type A or ASSIST mode () for cluster type B. For more information, refer to "LCD Display Modes" in chapter 3. When both lane markers are detected and all the conditions to activate the LKA system are satisfied, a green steering wheel indicator will illuminate and the LKA system indicator light will change from white to green...

    Hyundai Ioniq (AE) 2017-2024 Owner's Manual: Driving your vehicle


    WARNING Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and death. Engine exhaust contains carbon monoxide which cannot be seen or smelled. Do not inhale engine exhaust. If at any time you smell engine exhaust inside the vehicle, open the windows immediately...

    Categories

    Seatback pocket

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    The seatback pocket is provided on the back of the front passenger's seatback.

    WARNING

    To prevent the Occupant Classification System from malfunctioning:

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