Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2011OPTIMA L4-2.0L TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSEVAPORATIVE EMISSIONS SYSTEMTESTING AND INSPECTION
2011 Kia Optima L4-2.0L Turbo
Evaporative Emissions System: Testing and Inspection
2011 Kia Optima L4-2.0L TurboSECTION Testing and Inspection
Inspection
[System Inspection]
1. Disconnect the vapor hose from the throttle body and connect a vacuum pump to the nipple on the throttle body.
2. Check the following points with applied vacuum using a vacuum pump.
- At Cold Engine [Engine Coolant Temperature less than 60°C(140°F)]
- At Warmed Engine [Engine Coolant Temperature greater than 80°C(176°F)]
[PCSV Inspection]
1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Disconnect the PCSV connector (A).
3. Disconnect the vapor hose (B) which is connected to the intake manifold from the PCSV.
4. After connecting a vacuum pump to the nipple, apply vacuum.
5. With the PCSV control line grounded, check the valve operation with battery voltage applied to the PCSV(Open) and removed(Closed).
6. Measure the coil resistance of the PCSV.
Specifications:19.0 - 22.0Ohms [20°C(68°F)]
[EVAP. Leakage Test]
1. Select "Evap. Leakage Test".
2. Proceed with the test according to the screen introductions.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.