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

Hyundai Elantra (CN7) 2021-2026 Service Manual / 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: A/C Pressure Transducer

    Description and operation DescriptionThe A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Intake Actuator

    Description and operation DescriptionThe intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recirculation and fresh air modes. Components and components location Components Location1.

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