Hyundai Elantra (CN7): Emission Control System / Troubleshooting

Hyundai Elantra (CN7) 2021-2026 Service Manual / Emission Control System / Troubleshooting

Troubleshooting
Symptom
Suspect Area
Engine will not start or stuggle to start
Vapor hose damaged or disconnected
Engine stuggle to start
Malfunction of the Purge Control Solenoid Valve
Rough idle or engine stalls
Vapor hose damaged or disconnected
Malfunction of the PCV valve
Rough idle
Malfunction of the Evaporative Emission Control System
Excessive oil consumption
Positive crankcase ventilation line clogged

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

    SpecificationsPurge Control Solenoid Valve (PCSV)▷ Specification Item Specification Coil Resistance (Ω)22.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: License Lamps

    Repair procedures Removal1.Disconnect the negative (-) battery terminal.2.Push the lock pin (B) and remove the license lamp (A).3.Disconnect the license lamp connector (A).4.Replace the bulb (A).Installation1.Connect the license lamp connector.2.Install the license lamp.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Evaporator Core

    Repair procedures Replacement1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Remove the heater core cover (A) after loosening the mounting screws.4.Pull out the evaporator core (A) from the heater unit.

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