Hyundai EQUUS 2016, Owner'S Manual

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7-89
Maintenance
07
The emission control system of your
vehicle is covered by a written limited
warranty. Please refer to the Owner’s
Handbook & Warranty Information
booklet for more warranty information.
Your vehicle is equipped with an
emission control system to meet all
applicable emission regulations.
Below are the three emission control
systems.
(1) Crankcase emission control sys-
tem
(2) Evaporative emission control sys-
tem
(3) Exhaust emission control system
In order to assure the proper opera-
tion of the emission control systems,
it is recommended that you have
your car inspected and maintained
by an authorized EQUUS dealer in
accordance with the maintenance
schedule in this manual.
Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
• To prevent a misfiring during a
dynamometer test, press the
Electronic Stability Control (ESC)
system OFF.
• After a dynamometer test, turn
ON the ESC system back.
1. Crankcase emission control
system
The positive crankcase ventilation
system is to prevent the gas emis-
sion from the crankcase and to
reduce the air pollution. This system
supplies filtered-out, fresh air to the
crankcase through the air intake
hose. Inside the crankcase, the fil-
tered-out air mixes with gases, which
then pass through the PCV valve into
the induction system.
2. Evaporative emission control
(including ORVR: Onboard
Refueling Vapor Recovery)
system
The Evaporative Emission Control
System is designed to prevent fuel
vapor emission into the atmosphere.
(The ORVR system is designed to
keep the fuel vapors in a canister
while being refueled at the gas sta-
tion, preventing the fuel vapor emis-
sion 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 are
absorbed in the canister, and are
drawn into the engine intake mani-
fold through the purge control sole-
noid valve.
E EM MIIS SS SIIO ON N C CO ON NT TR RO OL L S SY YS ST TE EM M