EMISSION CONTROL SYSTEM (IF EQUIPPED)
The emission control system of your vehicle is covered by a written limited
warranty. Please see the warranty in‐
formation contained in the Warranty & Maintenance book in your vehicle.
Your vehicle is equipped with an emis‐
sion control system to meet all applica‐
ble emission regulations.
There are three emission control sys‐ tems, as follows. 1. Crankcase emission control system
2. Evaporative emission control sys‐ tem
3. Exhaust emission control system
In order to assure the proper function
of the emission control systems, have
your vehicle inspected and maintained by a professional workshop in accord‐
ance with the maintenance schedule in
this manual. Kia recommends to visit an
authorized Kia dealer/service partner.
Caution for the Inspection and Mainte‐nance Test (With Electronic StabilityControl (ESC) system)
•To prevent the vehicle from misfiringduring dynamometer testing, turnthe Electronic Stability Control (ESC)system off by pressing the ESCswitch. •
After dynamometer testing is com‐pleted, turn the ESC system back onby pressing the ESC switch again.
1. Crankcase emission control
system
The positive crankcase ventilation sys‐
tem is employed to prevent air pollu‐ tion caused by blow-by gases being
emitted from the crankcase.
This system supplies fresh filtered air
to the crankcase through the air intake hose. Inside the crankcase, the fresh air
mixes with blow-by gases, which then
pass through the PCV valve into the in‐ duction system.
2. Evaporative emission control
system
The Evaporative Emission Control Sys‐
tem is designed to prevent fuel vapors from escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the on‐ board canister. When the engine is run‐
ning, the fuel vapors absorbed in the
canister are drawn into the surge tank through the purge control solenoid
valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is con‐
trolled by the Engine Control Module (ECM); when the engine coolant tem‐
perature is low during idling, the PCSV
closes so that evaporated fuel is not taken into the engine. After the engine
warms up during ordinary driving, the
PCSV opens to introduce evaporated fuel to the engine.
3. Exhaust emission control
system
The Exhaust Emission Control System
is a highly effective system which con‐
trols exhaust emissions while maintain‐
ing good vehicle performance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and may even violate governmental
safety and emissions regulations.
In addition, damage or performance
problems resulting from any modifica‐ tion may not be covered under warran‐
ty.
Maintenance
8-134
• Do not misuse or abuse the engine.Examples of misuse are coasting with
the ignition off and descending steep grades in gear with the ignition off.
• Do not operate the engine at high idle speed for extended periods (5 mi‐
nutes or more).
• Do not modify or tamper with any part of the engine or emission control
system. All inspections and adjust‐ ments must be made by a professio‐
nal workshop. Kia recommends to
visit an authorized Kia dealer/service
center.
• Avoid driving with an extremely low fuel level. Running out of fuel couldcause the engine to misfire, damag‐
ing the catalytic converter.
Failure to observe these precautions
could result in damage to the catalytic converter and to your vehicle.
Additionally, such actions could void
your warranties.
Diesel particulate filter (if
equipped)
The Diesel Particulate Filter (DPF) sys‐
tem removes the soot in the exhaust gas. Unlike a disposable air filter, the DPF
system automatically burns (oxidizes)
and removes the accumulated soot ac‐ cording to the driving condition. In other
words, the active burning by engine
control system and high exhaust gas temperature caused by normal/high
driving condition burns and removes
the accumulated soot.
However, if the vehicle continues to be driven at repeated short distance or
driven at low speed for a long time, the
accumulated soot may not be auto‐ matically removed because of low ex‐
haust gas temperature. More than a
certain amount of soot deposited, the malfunction indicator light (
) illumi‐
nates.
When the malfunction indicator light
blinks, it may stop blinking by driving
the vehicle at more than 60 km/h (37 mph) or at more than second gear
with 1500 ~ 2500 engine rpm for a cer‐
tain time (for about 25 minutes).
If the malfunction indicator light (
)
continues to be blinked or the warning
massage "Check exhaust system" illu‐ minates in spite of the procedure, visit
a professional workshop and check the
DPF system. Kia recommends to visit an authorized Kia dealer/service part‐
ner. If you continue to drive with the mal‐
function indicator light blinking for a long time, the DPF system can be dam‐
aged and fuel consumption can be wor‐
sen.
CAUTION
Diesel Fuel (if equipped with DPF)It is recommended to use the regula‐ted automotive diesel fuel for dieselvehicle equipped with the DPF sys‐tem.If you use diesel fuel including highsulfur (more than 50 ppm sulfur)and unspecified additives, it cancause the DPF system to be dam‐aged and white smoke can be emit‐ted.
Lean NOx trap (if equipped)
The Lean NOx Trap (LNT) system re‐
moves the nitrogen oxide in the ex‐ haust gas. The smell can occur in the
exhaust gas depending on the quality
of the fuel and it can degrade NOx re‐ duction performance, please use the
regulated automotive diesel fuel.
Maintenance
8-136
