2006 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.If your f uel f ill cap is loose or
missing, a ‘‘CHECK FUEL CAP’’
message appears in the information
display af ter you start the engine.
The message goes f rom CHECK to
FUEL,thentoCAPrepeatedly.You
will also hear a beep.
Turn the engine of f , and conf irm the
f uel f ill cap is installed. If it is, loosen
the cap, then retighten it until it
clicks at least once. When you
restart the engine, the message
appears again. To clear the message,
press and hold the SEL/RESET
button until it goes away.
261
Fuel Gauge T emperature Gauge Check Fuel Cap Indicator
Gauges
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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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.If the vehicle is f acing uphill, turn
the front wheels away from the
curb. If you have a manual
transmission, put it in f irst gear.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb. If you have a manual
transmission, put it in reverse gear.
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.
On vehicles with security system
Parking T ips
Parking
202
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.
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Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle, and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers .276
................................
Specif ications .278
DOT Tire Quality Grading
......................
(U.S. Vehicles) .280
Unif orm Tire Quality ..................................
Grading .280
.................................
Treadwear .280
......................................
Traction .280
.............................
Temperature .281
.................................
Tire Labeling .282 .......................
Emissions Controls .283
.....................
The Clean Air Act .283
Crankcase Emissions Control
....................................
System .283
Evaporative Emissions Control ....................................
System .283
Onboard Ref ueling Vapor ................................
Recovery .283
...
Exhaust Emissions Controls .284
....................
PGM-FI System .284
Ignition Timing Control
................................
System .284
Exhaust Gas Recirculation ....................
(EGR)System .284
Three Way Catalytic ...........................
Converter .284
....................
Replacement Parts .284
..
Three Way Catalytic Converter .285
..............
State Emissions Testing .286
T echnical Inf ormation
Technical Inf ormation
275
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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 from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
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. 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 emissions controls
include three or f our systems: PGM-
FI, ignition timing control, exhaust
gas recirculation (DX, LX, and EX),
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 from 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
Replacement Parts
Exhaust Emissions Controls
PGM-FI System Exhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
Three Way Catalytic Converter
Emissions Cont rols
284
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On DX, LX, and EX models

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 tuned-up.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
Technical Inf ormation
285
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTER
Si model
DX, Canadian DX-G, LX, EX
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Î
Î
..........
Taillights, Changing Bulbs .236
.
Taking Care of the Unexpected .251
Technical Descriptions
....
DOT Tire Quality Grading .280
.....
Emissions Control Systems .283
.....................
Oxygenated Fuels .180
Three Way Catalytic
.......................
Converter .284,285
.......................
Temperature Gauge .66
.....................
Tether Anchor Points .45
................
Thef t Protection, Radio .172
Three Way Catalytic
...........................
Converter .284,285
..................
Tilt the Steering Wheel .73
............................
Security System .174
.....................
Selecting a Child Seat .39
...............................
Serial Number .276
...........................
Service Intervals .209
...........................
Service Manual .291
.........
Service Station Procedures .181
..........................
Setting the Clock .173
...
Shif t Lever Position Indicators .198
........................
Shif t Lock Release .201
................................
Side Airbags .9,26
..........................
Of f Indicator .29,58
..................
Side Curtain Airbags .9,28
Side Marker Lights, Bulb
..............................
Replacement .235
...............................
Signaling Turns .70
..................................
Snow Chains .247
.....................................
Snow Tires .246
...........
Sockets, Accessory Power .104
................................
Sound System .115
Spare Tire
......................................
Inf lating .252
............................
Specif ications .279
....................................
Spark Plugs .278
................................
Specif ications .278
................................
Speed Control .175
........................
Speed Limiter .197,200 ..........
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) .76
.......................
Starting the Engine .194
In Cold Weather at High ..................................
Altitude .194
................
With a Dead Battery .259
..............
State Emissions Testing .286
........
Steam Coming f rom Engine .261
Steering Wheel
................................
Adjustments .73
.............
Anti-theft Column Lock .76
.......
Steering Wheel Buttons .170,175 ...................
Stereo Sound System .115
....................
Storing Your Vehicle .250
Supplemental Restraint
..................................
System .9,21
......................................
Servicing .30
.........................
SRS Indicator .28,58
...................
System Components .21
.........................................
SVC .120,144
..................................
Synthetic Oil .221
Index
T
VIII
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