catalytic converter HONDA ACCORD 2008 8.G Owners Manual

This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise
from the bottom mark to about the
middle of the gauge. In severe
driving conditions, such as very hot
weather or a long period of uphill
driving, the pointer may rise to the
upper zone. If it reaches the red
(hot) mark, pull saf ely to the side of
the road. Turn to page for
instructions and precautions on
checking the engine cooling system.This shows how much f uel you have.
It may show slightly more or less
than the actual amount. The needle
returns to the bottom after you turn
of f the ignition.
If your f uel f ill cap is loose or
missing, a ‘‘CHECK FUEL CAP’’
message appears on the information
display af ter you start the engine.
For more inf ormation, see page .
The inf ormation display in the
instrument panel shows you the
engine oil lif e and maintenance
service items when the ignition
switch is in the ON (II) position. This
inf ormation helps to keep you aware
of the periodic maintenance your
vehicle needs f or continued trouble-
f ree driving. Ref er to page f or
more inf ormation. 262
307 367
Gauges
Temperature Gauge Fuel Gauge
Check Fuel Cap Message
Maintenance Minder
66
Avoid driving with an extremely low
f uel level. Running out of f uel could
cause the engine to misf ire, damaging
the catalytic converter.
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Always use the parking brake when
you park your vehicle. Make sure
the parking brake is set f irmly, or
your vehicle may roll if it is parked
on an incline.
If your vehicle has an automatic
transmission, set the parking brake
bef ore you put the transmission in
Park. This keeps the vehicle f rom
moving and putting pressure on the
parking mechanism in the
transmission.Make sure the moonroof (if
equipped) and the windows are
closed.
Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Make sure the parking brake is
f ully released bef ore driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
If the vehicle is f acing uphill, turn
the f ront wheels away f rom the
curb. If your vehicle has a manual
transmission, put it in f irst gear.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb. If your vehicle has a manual
transmission, put it in reverse gear.
Lock the doors.
Check the indicator on the
instrument panel to verif y that the
security system is set.
Never park over dry leaves, tall
grass, or other f lammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.
Except LX
Parking T ips
Parking
Driving
289
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The PGM-FI system uses sequential
multiport f uel injection. It has three
subsystems: air intake, engine
control, and f uel control. The
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles uses
various sensors to determine how
much air is going into the engine. Itthen controls how much f uel to inject
under all operating conditions. The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
The emissions control systems are
covered by warranties separate f rom
the rest of your vehicle. Read your
warranty manual f or more inf orma-
tion.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust emissions controls
includethreeorfoursystems:PGM-
FI, ignition timing control, exhaust
gas recirculation (V6 models), and
three way catalytic converter. These
three or four systems work together
to control the engine’s combustion
and minimize the amount of HC, CO,
and NOx that come out the tailpipe.
The exhaust emissions control
systems are separate f rom the
crankcase and evaporative emissions
control systems.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), nitrogen
(N ), and water vapor.
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
2
2
V6 models
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emExhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
Three Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation
395
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The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Honda part
or its equivalent.Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective.Keep the engine well maintained.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any
combustible materials that come
near it. Park your vehicle away from
high grass, dry leaves, or other
f lammables. A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your vehicle’s three way
catalytic converter.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
396
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTERS
2.4
engine models V6 models
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..........
SRS, Additional Inf ormation . 21
...
Additional Safety Precautions . 31
.............................
Airbag Service . 31
......
Airbag System Components . 21
How the Passenger Airbag Of f
......................
Indicator Works . 30
How the Side Airbag Of f ......................
Indicator Works . 29
..
How the SRS Indicator Works . 29
How Your Front Airbags
.......................................
Works . 23
.
How Your Side Airbags Works . 27
How Your Side Curtain Airbags
.........................................
Work . 28
.............................
SRS Indicator . 29, 57
....
START (Ignition Key Position) . 78
.......................
Starting the Engine . 281
In Cold Weather at High ..................................
Altitude . 281
................
With a Dead Battery . 364
........
Steam Coming f rom Engine . 367
Steering Wheel
................................
Adjustments . 75
.............
Anti-theft Column Lock . 78
.......
Steering Wheel Buttons . 211, 232
...................
Stereo Sound System . 133 ......................................
Sun Visors . 114
........................
Sunglasses Holder . 113
Supplemental Restraint
..................................
System .9,21
......................................
Servicing . 31
.........................
SRS Indicator . 29, 57
...................
System Components . 21
..................................
Synthetic Oil . 317
.
Taking Care of the Unexpected . 355
Technical Descriptions
......
DOT Tire Quality Grading . 388
.....
Emissions Control Systems . 394
Three Way Catalytic
...............................
Converter . 396
.......................
Temperature Gauge . 66
....................
Temperature, Outside . 65
..............
Tether Anchorage Points . 46
................
Thef t Protection, Radio . 213
..
Three Way Catalytic Converter . 396
..........................
Time, Setting the . 214
....................................
Timing Belt . 328
....................................
Tire Chains . 349
.........
Tire, How to Change a Flat . 357 ...........................
Tire Inf ormation . 390
.................................
Tire Labeling . 390
Tire Pressure Monitoring
............
System (TPMS) . 295, 392
Low Tire Pressure ...........................
Indicator . 59, 295
Required Federal ............................
Explanation . 392
..................
TPMS Indicator . 59, 296
...............................................
Tires . 343
..............................
Air Pressure . 344
........................................
Chains . 349
.........................
Checking Wear . 345
..........................
Compact Spare . 356
......
DOT Tire Quality Grading . 388
......................................
Inf lation . 343
..................................
Inspection . 345
...................................
Replacing . 348
......................................
Rotating . 347
................................
Service Lif e . 346
...........................................
Snow . 349
....................
Specif ications . 385, 387
...................
Tools, Tire Changing . 357
Index
T
VIII
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