2008 HONDA CIVIC COUPE catalytic converter

This shows how much f uel you have.
It may show slightly more or less
than the actual amount.This shows the temperature of the
engine’s coolant. During normal
operation, the reading should rise to
about the middle of the gauge. In
severe driving conditions, such as
very hot weather or a long period of
uphill driving, the reading may rise
intotheupperhalfofthegauge.Ifit
reaches the red (Hot) mark, pull
safely to the side of the road. See
page f or instructions and
precautions on checking the engine
cooling system.Your vehicle’s onboard diagnostic
system will detect a loose or missing
f uel f ill cap as an evaporative system
leak. The f irst time a leak is detected
a ‘‘CHECK FUEL CAP’’ message
appears on the information display.
Turn the engine of f , and conf irm the
f uel f ill cap is installed. If it is, loosen
it, then retighten it until it clicks at
least once. The message should go
off after several days of normal
driving once you tighten or replace
the f uel f ill cap. To scroll to another
display, press the SEL/RESET
button. The ‘‘CHECK FUEL CAP’’
message will appear each time you
restart the engine until the system
turns the message of f .
279
Fuel Gauge T emperature Gauge Check Fuel Cap Message
Gauges
68
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.
——

y

y
(+yy

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 parking brake is
f ully released bef ore driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
Make sure the moonroof (if
equipped) and the windows are
closed.
Lock the doors.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Turn of f the lights.
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.
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.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.
On vehicles with security system
Parking T ips
Parking
212
Never install a sunshade between the
upper and lower meters on the
instrument panel. If you do, you could
cause heat damage to the upper meter
on a very hot day.
——

y
y
(+y
y

The exhaust emissions controls
include three or f our systems:
PGM-FI, ignition timing control,
exhaust gas recirculation (DX, LX,
EX and EX-L), and three way
catalytic converter. These systems
work together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
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 howmuch air is going into the engine. It
then controls how much f uel to inject
under all operating conditions.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
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.
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.
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 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.
2
2
On DX, LX, EX and EX-L models
Exhaust Emissions Controls
Replacement Parts
Emissions Cont rols
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em Three Way Catalytic Converter
306
——

y
y
(+y

y

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.
The three way catalytic converter
must operate at a high temperaturefor 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. 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.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
T echnical Inf ormation
307
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTER
DX, Canadian DX-G, LX, EX, EX-L Si model
——

y

y
(+y
y

ÎÎ
.........................
Seats, Folding Rear . 98
............................
Security System . 181
.....................
Selecting a Child Seat . 39
...............................
Serial Number . 294
...........................
Service Intervals . 225
...........................
Service Manual . 315
.........
Service Station Procedures . 187
..........................
Setting the Clock . 180
...
Shif t Lever Position Indicators . 208
........................
Shif t Lock Release . 211
................................
Side Airbags . 9, 26
..........................
Of f Indicator . 29, 58
..................
Side Curtain Airbags . 9, 28
Side Marker Lights, Bulb
..............................
Replacement . 249
...............................
Signaling Turns . 72
..................................
Snow Chains . 263
.....................................
Snow Tires . 263
...........
Sockets, Accessory Power . 108
................................
Sound System . 119
Spare Tire
......................................
Inf lating . 270
............................
Specif ications . 298
....................................
Spark Plugs . 296
................................
Specif ications . 296
................................
Speed Control . 182 ........................
Speed Limiter . 207, 210
..........
SRS, Additional Inf ormation . 21
...
Additional Safety Precautions . 31
.............................
Airbag Service . 30
......
Airbag System Components . 21
How the Passenger Airbag
...............
Of f Indicator Works . 29
How the Side Airbag Of f ......................
Indicator Works . 29
..
How the SRS Indicator Works . 28
How Your Front Airbags
.........................................
Work . 23
...
How Your Side Airbags Work . 26
How Your Side Curtain Airbags
.........................................
Work . 28
.............................
SRS Indicator . 28, 58
....
START (Ignition Key Position) . 78
.......................
Starting the Engine . 204
In Cold Weather at High ..................................
Altitude . 204
................
With a Dead Battery . 277
........
Steam Coming f rom Engine . 279
Steering Wheel
................................
Adjustments . 75
.............
Anti-theft Column Lock . 78
.......
Steering Wheel Buttons . 177, 182 ...................
Stereo Sound System . 119
....................
Storing Your Vehicle . 267
Supplemental Restraint
..................................
System .9,21
......................................
Servicing . 30
.........................
SRS Indicator . 28, 58
...................
System Components . 21
.........................................
SVC . 124, 148
..................................
Synthetic Oil . 235
..........
Taillights, Changing Bulbs . 250
.
Taking Care of the Unexpected . 269
Technical Descriptions
....
DOT Tire Quality Grading . 299
.....
Emissions Control Systems . 305
.....................
Oxygenated Fuels . 187
Three Way Catalytic
.......................
Converter . 306, 307
.......................
Temperature Gauge . 68
.....................
Tether Anchor Points . 45
................
Thef t Protection, Radio . 179
Three Way Catalytic
...........................
Converter . 306, 307
..................
Tilt the Steering Wheel . 75
Index
T
VIII
——

y
y
(+yy