>

Hyundai Equus: Description and Operation - Exhaust Emission Control System - Emission Control System - Hyundai Equus VI 2009-2023 Service ManualHyundai Equus: 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 programmed into the ECM.
2.
Closed Loop air/fuel ratio is adjusted by the ECM based on information supplied by the oxygen sensor.
    Exhaust Emission Control System
    ...

    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). T ...

    See also:

    Rear Center Seat Belt Retractor Repair procedures
    Replacement     Х When installing the belt, make sure not to damage the retractor. 1. Remove the rear package tray trim. (Refer to Interior Trim - "Rear Package Tray T ...

    Front Area Module(FAM) Description and Operation
    Description FAM (Front Area Module) The FAM includes the functions for the following list : - Wiper control (Rain sensor communication and transfer Rain sensor request information to Wiper modu ...

    Front Seat Cushion Cover Components and Components Location
    Component Location 1. Front seat cushion cover ...

    Categories

    Hyundai Equus Manuals


    © 2011-2023 Copyright www.heqmanual.com