Hyundai Sonata: Troubleshooting - General Information - Emission Control SystemHyundai Sonata: Troubleshooting

Troubleshooting

Symptom
Suspect area
Engine will not start or struggle to start
Vapor hose damaged or disconnected
Engine struggles 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


    Specifications
    Specifications Purge Control Solenoid Valve (PCSV) ▷ Specification Item Specification Coil Resistance (Ω) 19.0 ~ 22.0 [20°C( ...

    Schematic Diagrams
    Schematic Diagram ...

    See also:

    Power Door Lock Switch. Repair procedures
    Inspection Driver Door Lock Switch Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the front door trim panel. ...

    ESC OFF Switch. Repair procedures
    Inspection 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the crash pad side switch assembly. ...

    Repair procedures
    Teaching Procedures 1. Key Teaching Procedure Key teaching must be done after replacing a defective PCM(ECM) or when providing additional keys to the vehicle owner ...