Kia Optima: Troubleshooting - Emission Control SystemKia Optima: 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 s ...

Crankcase Emission Control System
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See also:

Automatic Door Locks
Operating Door Locks - With the Key Both front doors can be locked and unlocked with the key. Turn the key to the left to lock and to the right to unlock the door. Once a door is unlocked, i ...

If You Have a Flat Tire
The spare tire, tool bag, jack and jack handle are stored in the trunk compartment. Move the carpeting out of the way to reach this equipment. ...

Ambient Sensor Description and Operation
Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lowe ...

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