Kia XCeed 2020 Owner's Manual page 684

Maintenance
• After dynamometer testing is
completed, turn the ESC system
back on by pressing the ESC
switch again.
1. Crankcase emission control
system
The positive crankcase ventilation
system is employed to prevent air
pollution 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 induction system.
2. Evaporative emission control
system
The Evaporative Emission Control
System 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
onboard canister. When the engine
is running, 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 controlled by the Engine Control
Module (ECM); when the engine
8 134
coolant temperature 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 controls exhaust emissions
while maintaining good vehicle
performance.
Engine exhaust gas precautions
(carbon monoxide)
• Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your
vehicle, have it inspected and
repaired immediately. If you
ever suspect exhaust fumes are
coming into your vehicle, drive it
only with all the windows fully
open. Have your vehicle checked
and repaired immediately.
WARNING
Exhaust
Engine exhaust gases contain carbon
monoxide (CO). Though colorless
and odorless, it is dangerous and
could be lethal if inhaled. Follow the
instructions on this page to avoid CO
poisoning.
Emission control system