Hyundai Elantra (CN7): Emission Control System / Description and operation

Description
Emissions Control System consists of three major systems.
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Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type).
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Evaporative Emission Control System prevents evaporative gas from releasing into the atmosphere. This system burns gas at appropriate engine operating condition after gathering it in the canister.
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Exhaust Emission Control System converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances by using the 3-way catalytic converter.

    Components Location1. Canister2. Purge control solenoid valve (PCSV)3. Fuel Tank Air Filter4. Catalytic converter (WCC)5. Catalytic converter (UCC)1. Canister 2.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Blower Motor

    Repair procedures Inspection1.Connect the battery voltage and check the blower motor rotation.Replacement1.Disconnect the negative (-) battery terminal.2.Disconnect the blower motor connector (A) and then remove the blower motor (B) after loosening the screws.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: ADAS Parking ECU (ADAS_PRK)

    Components and components location Components and Components Location Repair procedures Removal    â€¢ Use a plastic panel removal tool to remove interior trim pieces without marring the surface.• Take care not to bend or scratch the trim and panels.

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