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Emission Control System - General Information - Hev: Diagnosis Kia Optima III

Testing & Diagnostics 8 illustrations

Troubleshooting

SymptomSuspect area
Engine will not start or struggle to startVapor hose damaged or disconnected
Engine struggles to startMalfunction of the Purge Control Solenoid Valve
Rough idle or engine stallsVapor hose damaged or disconnected
Malfunction of the PCV valve
Rough idleMalfunction of the Evaporative Emission Control System
Excessive oil consumptionPositive crankcase ventilation line clogged

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Scheme 417: Schematic Diagram

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Scheme 418: Components Location

1. PCV Valve 2. Canister 3. Purge Control Solenoid Valve (PCSV) 4. Fuel Tank Pressure Sensor (FTPS) 6. Fuel Level Sender (FLS) 5. NVLD (Natural Vacuum Leakage Detection) Module 7. Canister Close Valve (CCV) 8. Fuel Tank Air Filter 9. Catalytic Converter (WCC) 9. Catalytic Converter (UCC) 10. Auxiliary canister

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