catalytic converter Hyundai Matrix 2005 Owner's Manual

EMISSION CONTROL SYSTEM 7-1
SH000A1-E
7. EMISSION
CONTROL SYSTEM
SH010A1-E EMISSION CONTROL SYSTEMS (Not all models) Depending upon the market for which the ve-hicle is destined, the emission control systemwill comprise one or more of the followingemission control devices. (1) Crankcase emission control system (2) Evaporative emission control system (3) Exhaust emission control system In order that the proper functioning of the emis- sion control systems may be ensured, it isrecommended that the vehicle is inspected andmaintained by an Hyundai authorised repairerin accordance with the maintenance schedulein this manual. SH010B1-E 1. CRANKCASE EMISSION CONTROL SYSTEM
The positive crankcase ventilation system is employed to prevent air pollution caused byblow-by gases being emitted from the crank-case by introducing fresh air to the crankcase through the air cleaner where this mixes withblow-by gases and then passes through thePCV valve into the intake manifold from whereit subsequently enters the combustion cham-ber and is burned.
SH010D1-E 3. EXHAUST EMISSION CONTROL SYSTEM The exhaust emission control system is a highlyeffective system which controls exhaust emis-sion whilst maintaining good vehicle perfor-mance.
SH010C1-E
2. EVAPORATIVE EMISSION
CONTROL SYSTEM
The Evaporative Emission Control System is designed to prevent fuel vapours from escap-ing into the atmosphere through the fuel tankventilation system.Whilst the engine is not running, fuel vapoursgenerated inside the fuel tank are absorbedand stored in a charcoal canister. When theengine is started, the vapours stored in thecanister are drawn into the induction systemthrough the purge control solenoid valve andare subsequently burned.The purge control solenoid valve is controlledby the ECU; when the engine coolant tempera-ture is low or the engine is idling, the purgecontrol valve is closed and fuel vapours remainstored in the canister. Under normal runningconditions when the engine is warm, the valveopens and the vapours are drawn into the inlettract and subsequently burned in the combus-tion chamber. SH020A1-E
Catalytic Convertor Operation Precautions; For a petrol engine Hyundai Matrix models are fitted with catalytic convertors which require special operatingconsiderations. The catalytic convertor servesto oxidize certain noxious elements of theexhaust gases leaving the engine to reduce thelevel of pollutants emitted from the vehicle and,provided that care is exercised to prevent dam-age, the catalyst will operate efficiently for thelife of the vehicle.
7HFC5013
Catalytic Converter

EMISSION CONTROL SYSTEM
7-2
It is of the utmost importance that the following information is read and understood by thevehicle operator in order to prevent operationalproblems arising from damage to the catalyst.Damage to the catalyst will result if contamina-tion occurs through the use of leaded fuel.Whilst the vehicle is fitted with a reduced diam-eter filler neck to prevent charging of the fueltank with a leaded fuel pump nozzle, it ispossible that the use of funnels or jerry cans willpermit leaded fuel to be introduced into the fueltank.The catalyst is intolerant of unburnt fuel andtherefore if an engine misfire condition exists,damage to the catalyst will occur. It is impera-tive that if a misfire condition develops, thevehicle is immediately presented to a Hyundaiauthorised repairer for rectification. Similarly,the practice of certain ignition system diagno-sis procedures which involve inducing a misfire(cylinder power balance tests for example)may result in catalyst damage.For these reasons, it is advisable that theexhaust gas emission be tested at each routineservice with a gas analyzer having a Hydrocar-bon measuring facility to ensure continuedreliability of the catalyst.Push or tow starting of the vehicle is to beavoided since unburnt fuel may be enter thecatalyst and result in damage. (Note, it isimpossible to push or tow start a Hyundaimodel equipped with fuel injection since thefuel pump safety interlock will prevent the pumpfrom operating under these conditions).
Operation of the catalyst involves extremelyhigh temperatures being attained within thecatalytic convertor, and although the convertoris fitted with heat shields, it is important that thevehicle is not parked over combustible or vola-tile material which may result in fire.If the above precautions are not adhered to andthe catalyst becomes inoperative, the resultantincrease in core temperature will result in a"melt down" where the catalyst core will meltand subsequently may block the exhaust sys-tem.Due to the fragile nature of the catalyst ele-ment, it is important that damage does notoccur when the vehicle is raised by means of agarage jack. Care must also be exercised toavoid driving over road hazards or debris whichmay cause damage to the catalyst element. H020D01S-GAT ; For a diesel engineAll Hyundai vehicles are equipped with oxida- tion type catalytic converter to reduce the car-bon monoxide, hydrocarbons and particulatecontained in the exhaust gas.
H020C01S-GAT EGR SYSTEM ; For a diesel engine This system helps control oxides of nitrogen by recirculating a part of the exhaust gas into theengine.

1FEATURES OF YOUR HYUNDAI
50
B260M01A-AAT
Low Fuel Level Warning
Light
The low fuel level warning light comes on when the fuel tank is approachingempty. When it comes on, you should add fuel as soon as possible. Driving with the fuel level warning light on orwith the fuel level below "E" can cause the engine to misfire and damage the catalytic converter. B260F01A-AAT High Beam Indicator
Light
The high beam indicator light comes on whenever the headlights are switched to the high beam or flash position.B260K01B-GAT Tail Gate Open Warning
Light
This light remains on unless the tail gate is completely closed. B260L01A-GAT Door Ajar Warning Light
The door ajar warning light warns you that a door is not completely closed.
B260G01A-AAT Low Oil Pressure
Warning Light
CAUTION:
If the oil pressure warning light stays on while the engine is run- ning, serious engine damage may result. The oil pressure warninglight comes on whenever there is insufficient oil pressure. In normal operation, it should come on whenthe ignition switch is turned on, then go out when the engine is started. If the oil pressure warning light stays on while the engine isrunning, there may be a serious malfunction. If this happens, stop the car assoon as it is safe to do so, turn off the engine and check the oil level. If the oil level is low, fill the engine oilto the proper level and start the engine again. If the light stays on with the engine running, turn theengine off immediately. In any in- stance where the oil light stays on when the engine is running, theengine should be checked by an authorized Hyundai dealer before the car is driven again.
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Emission Control System ............................................ 7-2
Catalytic Converter ...................................................... 7-3
EGR System ................................................................ 7-4
7
EMISSION CONTROL SYSTEM
7

7
EMISSION CONTROL SYSTEMS
3CATALYTIC CONVERTER
H020A01A-GAT
(If Installed) ; For a gasoline engine
HFC5013
The catalytic converter is part of the
exhaust emission control system. Its purpose is to remove certain engine emission products from the engine'sexhaust. It looks something like a muffler and is located underneath the car in the exhaust system.
Catalytic Converter H020B01A-GAT
About the Catalytic Converter
Exhaust gases passing through the
catalytic converter cause it to operate at very high temperatures. As a re- sult, the introduction of large amounts of unburned gasoline may cause it tooverheat and create a fire hazard. This can be avoided by observing the following:
o Use unleaded fuel only.
o Maintain your engine in good con- dition. Extremely high converter temperatures can result from im-proper operation of the electrical, ignition or fuel injection systems. o If your engine stalls, pings, knocks,
or is hard to start, take your car to your Hyundai dealer as soon as possible and have the difficulty corrected.
o Avoid driving with a very low fuel level. If your run out of gasoline, itcould cause the engine to misfireand result in excessive loading of the catalytic converter.
o Avoid idling the engine for periods longer than 10 minutes.
o Your Hyundai should not be either pushed or pulled to get it started.This can cause the catalytic con- verter to overload.
o Take care not to stop your Hyundai
over any combustible material suchas grass, paper, leaves or rags. As these materials could come in con- tact with the catalytic converter andcould cause a fire.
o Do not touch the catalytic con-
verter or any other part of the ex-haust system while the engine is running as it is very hot and could result in burns.
o Remember that your Hyundai
dealer is your best source of assis-tance.
H020D01S-GAT
; For a diesel engine
All Hyundai vehicles are equipped
with oxidation type catalytic converter to reduce the carbon monoxide, hy- drocarbons and particulate containedin the exhaust gas.

10INDEX
2
A Accessory Tray ......................................................... 1-71
Air Bag ...................................................................... 1-37
Air Cleaner Filter ....................................................... 6-17
Air Conditioning
Care ....................................................................... 6-25
Operation ............................................................... 6-25
Switch ..................................................................... 1-88
Air Conditioner Filter ................................................. 1-90
Antenna ................................................................... 1-124
Ashtray ...................................................................... 1-65
Audio System ............................................................ 1-93
Auto Fuel Cut Switch ................................................ 1-80
B
Battery ............................................................. 2-19, 6-31
Bleeding The Fuel System ....... ................................6-33
Brake Anti-lock system ..................................................... 2-13
Brake traction control system ................................ 2-14
Checking the brakes .............................................. 6-22
Fluid ....................................................................... 6-23
Pedal clearance ..................................................... 6-28
Pedal free play ....................................................... 6-28
Practices ................................................................ 2-15
Brake Pad Wear Warning Sound .............................1-52
Brake Traction Control System ................................ 2-14
Breaking-In your new Hyundai ................................... 1-3
Bulbs Wat tage ........................................................... 6-38C
Care of Cassette Tapes ....................
..................... 1-123
Care of Disc ............................................................ 1-122
Cargo Area Cover ..................................................... 1-79
Cassette Tape Player Operation (H220, H280) ............. .
................................................................... 1-99, 1-113
Catalytic Converter ..................................................... 7-3
CD Auto changer ...................................................... 1-77
CD Auto Changer (H 260, H280) ................ 1-107, 1-118
Child-Protector Rear Door Lock ................................. 1-9
Child Restraint S ystem ................................. 1-28 ~ 1-34
Cigarette Lighter ....................................................... 1-64
Clock ....................................................................... 1-64
Clutch Checking fluid ...................................................... 6-24
Pedal free play ..................................................... 6-17
Combination Light
Headlight flasher .................................................... 1-59
Headlight swi tch ..................................................... 1-58
High-beam swi tch .................................................. 1-59
Lane change si gnal ................................................ 1-58
Turn signal oper ation............................................. 1-58
Compact Disc Player Operation (H260, H280) .............. .
................................................................. 1-104, 1-115
Cooling Fans ............................................................. 6-32
Corrosion Protection Cleaning the interior ................................................. 4-5
Protecting your Hyundai from corrosion .................. 4-2
Washing and waxing ................................................ 4-4