Hyundai Venue: Exhaust Emission Control System / Description and operation

Hyundai Venue (QX) (2020-2024) Service Manual / Emission Control System / 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

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:

Hyundai Venue (QX) (2020-2024) Owners Manual: Transmission Shift Indicator

Manual transmission shift indicator (if equipped) This indicator informs which gear is desired while driving to save fuel. Shifting up : ▲2, ▲3, ▲4, ▲5, ▲6 Shifting down : ▼1, ▼2, ▼3, ▼4, ▼5 For example : Indicates that shifting up to the 3rd gear is desired (currently, the shift lever is in the 2nd or 1st gear)...

Hyundai Venue (QX) (2020-2024) Owners Manual: Drive Mode Integrated Control System

The drive mode may be selected according to the driver's preference or road condition. The system resets to be in the NORMAL mode, when the engine is restarted. Information If there is a problem with the instrument cluster, the drive mode will be in NORMAL mode and may not change to SPORT mode...