Kia Optima Hybrid: Exhaust Emission Control System / 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, camshaft and ignition system form the basic control system.
These items have been integrated into a highly effective system which controls exhaust emissions while maintaining good drivability and fuel economy.
Air/Fuel Mixture Control System [Multiport Fuel Injection (MFI) System]
The MFI system uses signals from the heated oxygen sensor to activate and control the injector installed in the manifold for each cylinder, thus precisely regulating the air/fuel mixture ratio and reducing emissions.
This in turn allows the engine to produce exhaust gas of the proper composition to permit the use of a three way catalyst. The three way catalyst is designed to convert the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances. There are two operating modes in the MFI system.
1.
Open Loop air/fuel ratio is controlled by information pre-programmed into the ECM.
2.
Closed Loop air/fuel ratio is constantly adjusted by the ECM based on information supplied by the oxygen sensor.
Exhaust Emission Control System

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Catalytic Converter Description and Operation

Description The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides of nitrogen (NOx). ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Oil Pressure Switch Repair procedures


Inspection 1. Check the continuity between the terminal and the body with an ohmmeter. If there is no continuity, replace the oil pressure switch. 2. Check the continuity between the terminal and the body when the fine wire is pushed. If there is continuity even when the fine wire is pushed, replace ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Under Body Body Repair


Projected Dimensions Front side member tooling hole (O25)Side cover mounting hole (O9)Front sub frame mounting bolt Front sub frame mounting hole(O16.5)Front side member tooling hole (O25)Front side member tooling hole (O14.5) Center floor side panel tooling hole(O20)Real trailing arm mounting hole (O19)Rear ...

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