Kia Optima Hybrid: Exhaust Emission Control System / Catalytic Converter Description and Operation

Description and Operation

Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components. Modifications to the combustion chamber, intake manifold, ...

CVVT (Continuously Variable Valve Timing) System Description and Operation

Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine ...

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Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Drain the engine coolant (Refer to “Cooling System” in EM group). 3. Remove the radiator upper hose (Refer to “Cooling System” in EM group). 4. Disconnect the knock sensor connector (A). 5. Remove the ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation

Description Emissions Control System consists of three major systems. • The Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type). • The Evaporative Emission Control System ...