Hyundai Elantra (CN7): 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: Blower Unit

    Components and components location Component Location1. Blower unit assemblyComponents1. Blower unit assebmly2. Blower upper cover [LH]3. Duct seal4. Blower upper cover [RH]5. Intake actuator6. Air filter cover7. Intake door8. Air filter9. Blower upper case10.

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

    Description and operation     The System may be limited when • The radar sensor or camera is blocked with a foreign object or debris.• The camera lens is contaminated due to tinted filmed or coated windshield, damaged glass, or stuck of foreign matter (sticker, bug, etc.

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