Hyundai Elantra (CN7): Exhaust Emission Control System / Catalytic Converter

Description and operation

Description
The 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).

Repair procedures

Removal
[Catalytic Converter (WCC)]
1.
Remove the exhaust manifold.
(Refer to Engine Mechanical System - "Exhaust Manifold")
[Catalytic Converter (UCC)]
1.
Remove the Center Muffler.
(Refer to Engine Mechanical System - "Center Muffler")
Installation
1.
Install in the reverse order of removal.

    DescriptionExhaust 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.

    Description and operation DescriptionContinuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: General safety information and caution

    General Safety Information and Caution1.Be careful when driving the vehicle using the smart cruise control system as follows.(1)On curves or inclines/declines• The smart cruise control system may have limits to detect distance to the vehicle ahead due to road and traffic conditions.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Desctiprion and operation

    DescriptionADAS_PRK is a unit that controls the functions required for ADAS parking. If the ADAS_PRK is applied, the parking distance warning function is also controlled by the ADAS_PRK.System FunctionParking Collision-Avoidance Assist (PCA)PCA is a parking safety system that assists in collision warning and emergency braking in the event of a coll

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