catalytic converter HONDA CIVIC 2002 7.G Owners Manual

This shows how much f uel you have.
It is most accurate when the car is on
level ground. It may show slightly
more or less than the actual amount
whenyouaredrivingoncurvyor
hilly roads.
There are two trip meters: Trip A
and Trip B. The odometer and the
two trip meters use the same display.
Switch between these displays and
the odometer by pressing the Select/
Reset button repeatedly. Each trip
meter works independently, so you
can keep track of two dif f erent
distances.
To reset a trip meter, display it, and
then press and hold the Select/Reset
button until the number resets to‘‘0.0’’.
The needle returns to the bottom
after you turn off the ignition. Thegauge shows the f uel level reading
immediately af ter you turn the
ignition switch back ON (II).
Gauges
Inst rument s and Cont rols
Fuel Gauge
DX
67
FFUUEELLGGAAUUGGEETTEEMMPPEERRAATTUURREEGGAAUUGGEE
OODDOOMMEETTEERR//TTRRIIPPMMEETTEERR
SSPPEEEEDDOOMMEETTEERR
SSEELLEECCTT//RREESSEETTBBUUTTTTOONN
Please ref uel early, as driving to the
last drop of f uel can result in damage
to the engine and/or three way catalytic
converter.

µMake sure the moonroof and the
windows are closed.
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. Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Lockthedoorswiththekeyorthe
remote transmitter.
Never park over dry leaves, tall
grass, or other f lammable
materials. The three way catalytic
converter gets very hot, and could
cause these materials to catch on
fire.
Always use the parking brake when
you park your car. The indicator on
the instrument panel shows that the
parking brake is not f ully released; it
does not indicate that the parking
brakeisfirmlyset.Makesurethe
parking brake is set f irmly or your
car may roll if it is parked on an
incline.
If your car has an automatic
transmission, set the parking brake
bef ore you put the transmission in
Park.Thiskeepsthecarfrom
moving and putting pressure on the
parking mechanism in the
transmission making it easier to
move the shift lever out of Park
when you want to drive away. If the car is f acing uphill, turn the
f ront wheels away f rom the curb. If
you have a manual transmission, put
it in f irst gear.
If the car is f acing downhill, turn the
f ront wheels toward the curb. If you
have a manual transmission, put it in
reverse gear.
Parking
Parking T ips
Driving187

Thediagramsinthissectiongive
you the dimensions and capacities of
your Honda, 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 . 294
................................
Specif ications . 296
DOT Tire Quality Grading
.............................
(U.S.Cars) .298
.................................
Treadwear . 298
......................................
Traction . 298
.............................
Temperature . 299
.........................
Oxygenated Fuels . 300
......
Driving in Foreign Countries . 301 .......................
Emissions Controls . 302
.....................
The Clean Air Act . 302
Crankcase Emissions Control
....................................
System . 302
Evaporative Emissions Control ....................................
System . 302
Onboard Ref ueling Vapor ................................
Recovery . 302
...
Exhaust Emissions Controls . 303
....................
PGM-FI System . 303
Ignition Timing Control
................................
System . 303
Exhaust Gas Recirculation ...................
(EGR) System . 303
Three Way Catalytic ...........................
Converter . 303
....................
Replacement Parts . 303
..
Three Way Catalytic Converter . 304
..............
State Emissions Testing . 305
T echnical Inf ormat ion
T echnical Inf ormation293

If you are planning to take your
Honda outside the U.S. or Canada,
contact the tourist bureaus in the
areas you will be traveling in to f ind
out about the availability of unleaded
gasoline with the proper octane
rating.
If unleaded gasoline is not available,
be aware that using leaded gasoline
in your Honda will af f ect perf or-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. and
Canadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into
compliance will require the replace-
ment of several components, such as
theoxygensensorsandthethree
way catalytic converter. These re-
placements are not covered under
warranty.
Driving in Foreign Countries
T echnical Inf ormation301

The emissions control systems are
covered by warranties separate f rom
the rest of your car. 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
Genuine Honda replacement parts or
their equivalent f or repairs. Using
lowerqualitypartsmayincreasethe
emissions f rom your car.
The exhaust emissions controls
include three or f our systems: PGM-
FI, Ignition Timing Control, Exhaust
Gas Recirculation (SOHC VTEC
engine only), and Three Way
Catalytic Converter. These three or
f our 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 PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM)
or the Powertrain Control Module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how much f uel to inject under all operat-
ing 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 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 ), dinitrogen
(N ), and water vapor.
2
2
On EX model only
Replacement Parts
Exhaust Emissions Controls
Emissions Cont rols
T echnical Inf ormation
PGM-FI Syst em Ignit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
303

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.
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 com-
bustible materials that come near it.
Park your car away f rom 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 car’s three way catalytic
converter. Keep the engine tuned-up.
Have your car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
(EX) (DX, LX)
T echnical Inf ormation
Three Way Catalytic Converter
304
TTHHRREEEEWWAAYYCCAATTAALLYYTTIICCCCOONNVVEERRTTEERRTTHHRREEEEWWAAYYCCAATTAALLYYTTIICCCCOONNVVEERRTTEERR

Î
.................
Vehicle Capacity Load . 174
......................
Vehicle Dimensions . 296
....
Vehicle Identif ication Number . 294
.............................
Vehicle Storage . 256
.....................................
Ventilation . 109
.................................................
VIN . 294
...............................
Vinyl Cleaning . 261
..................................
Viscosity, Oil . 210
.............
WARNING, Explanation of . ii
.........
Warning Labels, Location of . 55
..................
Warranty Coverages . 309
Washer, Windshield
........
Checking the Fluid Level . 219
.......................................
Indicator . 63
Technical Descriptions
......
DOT Tire Quality Grading . 298
.....
Emissions Control Systems . 302
.....................
Oxygenated Fuels . 300
Three Way Catalytic
...............................
Converter . 304
.......................
Temperature Gauge . 68
..............
Tether Anchorage Points . 42
............................
Thef t Protection . 157
..
Three Way Catalytic Converter . 304
..........
Time, Setting the . 119, 131, 143
....................................
Timing Belt . 237
....................................
Tire Chains . 244
.........
Tire, How to Change a Flat . 267
...............................................
Tires . 238
..............................
Air Pressure . 238
.........................
Checking Wear . 240
..........................
Compact Spare . 266
......
DOT Tire Quality Grading . 298
......................................
Inf lation . 238
..................................
Inspection . 240
..............................
Maintenance . 240
...................................
Replacing . 242
......................................
Rotating . 241
...........................................
Snow . 243
............................
Specif ications . 297 ................................
Tire Chains . 244
...................
Tools, Tire Changing . 267
Towing
.....................................
A Trailer . 193
..................
Emergency Towing . 290
...........................
Traction Devices . 244
Transmission
Checking Fluid Level, ..............................
Automatic . 220
Checking Fluid Level, ...................................
Manual . 221
..................
Fluid Selection . 220, 221
..............
Identif ication Number . 295
.............
Shif ting the Automatic . 183
..................
Shif ting the Manual . 180
.....................................
Treadwear . 298
.......................................
Trip Meter . 67
................................................
Trunk . 86
........................................
Opening . 86
...................
Open Monitor Light . 63
....................................
Turn Signals . 72
.....................
Underside, Cleaning . 263 Unexpected, Taking Care
..........................................
of the . 265
....
Unif orm Tire Quality Grading . 298
........................
Unleaded Gasoline . 164
.....................
Upholstery Cleaning . 260
.......
Used Oil, How to Dispose of . 212
Index
U W
V
VIII