Kia Optima: Troubleshooting - General Information - Emission Control System - Kia Optima TF 2011-2026 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:

HAC (Hill-start assist control)
Hill start Assist Control is a comfort function. The main intend is to prevent the vehicle from rolling backwards while driving off uphill on an inclined surface. HAC holds the braking pressure bu ...

Operating door locks from inside the vehicle
With the door lock button To unlock a door, push the door lock button (1) to the “Unlock” position. The red mark (2) on the button will be visible. To lock a door, push the door lock bu ...

Variant coding
After replacing the SRSCM with a new one, the “Variant Coding” procedure must be performed. 1. On SRSCM variant codi ...

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