2007 Hyundai Matrix Owners Manual

EMISSION CONTROL SYSTEMS
7
CATALYTIC CONVERTER
3
SH020A1-E
Catalytic Convertor Operation
Precautions
It is of the utmost importance that the
following information is  read and un-
derstood  by the  vehicle  operator  in
order to prevent operational problems
arising from damage to the  catalyst.
Damage  to the  catalyst will  result  if
contamination occurs through the use
of leaded  fuel.   Whilst the vehicle  is
fitted  with  a  reduced diameter  filler
neck to  prevent charging  of the  fuel
tank with a leaded fuel pump nozzle, it
is possible that  the use of funnels  or
fuel cans will permit leaded fuel to be
introduced into the fuel tank.
The  catalyst is  intolerant of  unburnt
fuel and therefore if an engine misfire
condition exists, damage to the cata-
lyst will occur.   It is imperative  that if
a misfire  condition develops, the  ve-
hicle  is immediately  presented  to  a
Hyundai authorised repairer for rectifi-
cation.  Similarly, the  practice of cer-
tain ignition system  diagnosis proce-
dures which involve inducing a misfire
(cylinder power balance  tests for ex-
ample) may result in catalyst damage.
For these reasons, it is advisable that
the exhaust gas emission be tested at
each routine service  with a gas ana-
lyzer having a Hydrocarbon measuring
facility to  ensure continued reliability
of the  catalyst.
;
For a petrol engine
Push or tow starting of the vehicle is to
be  avoided  since unburnt  fuel  may
enter the  catalyst and result in  dam-
age.  (Note, it is impossible to push or
tow start  a Hyundai model  equipped
with fuel injection since the fuel pump
safety interlock will prevent the pump
from operating under these conditions).
Operation of the catalyst involves ex-
tremely high  temperatures  being at-
tained within  the catalytic  convertor,
and  although the  convertor  is  fitted
with heat  shields, it is  important that
the vehicle is not parked over combus-
tible  or  volatile  material which  may
result in fire.
If the  above precautions are  not ad-
hered  to  and the  catalyst  becomes
inoperative, the  resultant increase in
core temperature will result in a "melt
down" where the catalyst core will melt
and subsequently  may block the  ex-
haust system.
Catalytic  Converter
HFC505
Hyundai Matrix models are fitted with
catalytic convertors which require spe-
cial operating considerations. The cata-
lytic convertor  serves to oxidize  cer-
tain noxious elements of the  exhaust
gases leaving the engine to reduce the
level  of  pollutants emitted  from  the
vehicle and, provided that care is ex-
ercised to prevent damage, the cata-
lyst will operate  efficiently for the  life
of the vehicle.
fcuk-7.p65
3
12/27/2006, 10:17 AM
Product Specification
Categories Hyundai Manuals, Hyundai Matrix Manuals
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- 490 pages
Document TypeOwners Manual
LanguageEnglish
Product BrandHyundai, Matrix
Document File TypePDF
CopyrightAttribution Non-commercial
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