Kia Forte: 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.

Exhaust Emission Control System

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Catalytic Converter 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). [SULEV] ...

See also:

AVN Head Unit Installation
1. Connect the AVN head unit connectors and cables. 2. Install the AVN head unit. 3. Install the airvent ducts ...

Telemetics Unit (TMU) Inspection
1. After replacing the TMU unit, access Dealer Engineering Mode in head unit. (Refer to MTS system - "TMU Dealer Engineering Mode") 2 ...

Control System Composition
Fault Diagnosis Features a fail-safe mechanism that provides "limp-home" 4th gear hold to enable the vehicle to be driven to the owner's home or dealer shop. Fail-Safe: ...