Hyundai Creta: Exhaust Emission Control System / Description and operation
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.
|
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 nit ...
Other information:
Hyundai Creta GS 2014-2024 Service Manual: Front Impact Sensor (FIS)
Description and operation
Description
The front impact sensor (FIS) is installed in the Front End Module (FEM). They
are remote sensors that detect acceleration due to a collision at its mounting
location. The primary purpose of the Front Impact Sensor (FIS) is to provide
a ...
Hyundai Creta GS 2014-2024 Service Manual: Repair procedures
Adjustment
1.
After loosening the tail gate hinge (A) mounting bolt, adjust the tail
gate by moving it up or down, or right or left.
2.
Adjust the tail gate height by turning the tail gate overslam bumpers
(B).
3 ...