Kia Optima Hybrid: Emission Control System / 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

Special Service Tools

Personal Protective Equipment NameIllustrationDescriptionInsulation gloveUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / 300A or above]Insulation shoesUsed ...

Crankcase Emission Control System

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Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Windshield Glass Repair procedures


Replacement Removal     • Put on gloves to protect your hands. • Use seat covers to avoid damaging any surfaces. 1. Remove the following items. • Front pillar trim (Refer to the BD group - "Interior Trim") • ECM mirror (Refer to the BD group - "Mirror") • Rain sensor (Refer to the ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Intake Actuator Repair procedures


Inspection 1. Ignition "OFF". 2. Disconnect the intake actuator connector. 3. Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 7. 4. Verify that the intake actuator operates to the fresh position when connecting in the reverse. ...

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