Kia Cee'd: Exhaust Emission Control System / Description and operation
Kia Cee'd JD 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.
|
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 nit ...
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Ford Escape 2020-2022 Owners Manual: All-Wheel Drive
How Does All-Wheel Drive Work
All-wheel drive uses all four wheels to
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conditions that a conventional two-wheel
drive vehicle cannot. The AWD system
turns on when needed and does not require
input from you.
...
Kia Cee'd JD Owners Manual: Disarmed stage
The system will be disarmed when:
Transmitter
- The door unlock button is pressed.
- The engine is started.
- The ignition switch is in the “ON” position
for 30 seconds or more.
Smart key
- The door unlock button is pressed.
- The button of the front outside door is
pressed while carr ...
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