Kia Sportage 2023 Owner's Manual page 501

Maintenance
crankcase, the fresh air mixes with blow-
by gases, which then pass through the
Positive Crankcase Ventilation (PCV)
valve into the induction system.
2. Evaporative emission control
(including Onboard Refueling
Vapor Recovery (ORVR)) system
The evaporative emission control system
is designed to prevent fuel vapors from
escaping into the atmosphere. (The
ORVR system is designed to allow the
vapors from the fuel tank to be loaded
into a canister while refueling at the gas
station, preventing the escape of fuel
vapors 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
(PCSV) is controlled by the Engine Con-
trol Module (ECM); when the engine
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 driv-
ing, the PCSV opens to introduce evapo-
rated fuel to the engine.
3. Exhaust emission control sys-
tem
The exhaust emission control system is a
highly effective system which controls
exhaust emissions while maintaining
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 modification may not
be covered under warranty.
僅 If you use authorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized elec-
tronic devices.
Engine exhaust gas precautions
(carbon monoxide)
僅 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 immedi-
ately.
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.
僅 Do not operate the engine in confined
or closed areas (such as garages) any
Emission control system
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