Kia Optima: Troubleshooting - General Information - Emission Control System - Kia Optima TF 2011-2025 Service ManualKia 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

Tightening Torques
Item kgf.m N.m lb-ft Positive crankcase ventilation valve installation 0.19 ~ 0.29 1.9 ~ 2.8 1.4 ~ 2.1 ...

Schematic Diagrams
Schematic Diagram ...

See also:

EBD(Electronic Brake-force Distribution). Description and Operation
Operation The EBD system (Electronic Brake force Distribution) as a sub-system of the ABS system is to control the maximum braking effectiveness by the rear wheels. It further utilizes the effic ...

Owner Maintenance Schedule
The owner or a qualified service technician should perform these vehicle inspections at the indicated intervals to ensure safe and dependable operation. Bring any problem to the attention of an aut ...

Inspection
1. Turn the ignition switch OFF. 2. Disconnect the OTS connector. 3. Remove the OTS. 4. After immersing the thermistor of the ...

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