2003 Hyundai Sonata Owners Manual

7-
2 EMISSIONCONTROLSYSTEMS
H010A01L-AAT
EMISSION CONTROL SYSTEM
H010B01A-AAT
1. Crankcase  Emission Control
Purge Control Solenoid Valve (PCSV)
The purge control  solenoid valve is  controlled
by the Engine Control 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 driving, the PCSV  opens to
introduce evaporated fuel  to the engine.
System
Your  Hyundai  is equipped  with  an  emission
control system to meet  all requirements of the
U.S. Environmental Protection Agency or Cali-
fornia Air  Resources Board.
There are three emission control systems which
are as  follows.
The  positive crankcase  ventilation  system  is
employed  to prevent  air  pollution  caused  by
blow-by gases  being  emitted from  the crank-
case.  This system  supplies 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
and into the  induction system.
(1)
(2)
(3)
Crankcase  emission control  system
Evaporative emission  control  system
Exhaust emission  control  system
H010D01A-AAT
3.
Exhaust Emission Control System
In  order to  assure the  proper  function of  the
emission control  systems, it  is recommended
that  you have  your  car inspected  and  main-
tained by an  authorized Hyundai dealer in ac-
cordance with the maintenance schedule in this
manual.
H010C02S-AAT
2.
Evaporative Emission Control
(IncludingORVR:OnboardRefueling
Vapor Recovery)  System
The  Exhaust  Emission  Control  System  is  a
highly effective system which controls exhaust
emissions   while   maintaining   good  vehicle
performace.
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,  pre-
venting  the  escape   of  fuel  vapors  into  the
atmosphere.)
Caution  for  Inspection   and  Maintenance
Test (2.7  V6  Vehicle with  Traction Control
System)
H010E01Y-AAT
EGR System (If installed)
This system  helps reduce  nitrogen oxides  by
recirculating a part of  the exhaust gas into the
engine, thereby  reducing cylinder combustion
temperature, which  results  in lower  output of
oxides of  nitrogen.
o
To  prevent  the  vehicle  from  misfiring
during  dynamometer   testing,   discon-
nect the  ABS connector  located on  the
left  side of  the engine  compartment.
For more information,  see shop manual
(BR-67, Wheel  Speed Sensor)
o
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.
Product Specification
CategoriesHyundai Manuals, Hyundai Sonata Manuals
Tags,
Model Year2003
Download File
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- 205 pages
Document TypeOwners Manual
LanguageEnglish
Product BrandHyundai, Sonata
Document File TypePDF
CopyrightAttribution Non-commercial
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2003 Hyundai Sonata Owners Manual SKU UPC Model
Vicki on May 31, 2014.

Just bought the 2003 Sonata on Craig's List and easily found a manual to assist with the "trial & error" method. Thanks.


Mario on Mar 20, 2013.



hectre frres on Mar 13, 2013.

im human


Clarence Dortch on Dec 20, 2012.

great


Clarence Dortch on Dec 20, 2012.

I do not have any.


Jill on Sep 01, 2012.

great


Jill on Sep 01, 2012.

great


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