catalytic converter HONDA CIVIC HATCHBACK 2004 7.G Owners Manual

The odometer and the trip meters
use the same display. Switch these
displays by pressing the Select/
Reset knob.
The trip meter shows the number of
miles (U.S.) or kilometers (Canada)
driven since you last reset it.There are two trip meters: Trip A
and Trip B. 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’’.
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.
The odometer shows the total dis-
tance your vehicle has been driven.
It measures miles in U.S. model and
kilometers in Canadian model.
It is illegal under U.S. f ederal law and
Canadian provincial regulations to
disconnect, reset, or alter the
odometer with the intent to change
the number of miles or kilometers
indicated.
Gauges
Inst rument s and Cont rols
Odometer/T rip Meter
Fuel Gauge
57
TACHOMETER TEMPERATURE GAUGE
U.S. model shown SPEEDOMETER
SELECT/RESET BUTTON FUEL GAUGE
ODOMETER/
TRIP METER
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 the vehicle is f acing uphill, turn
the f ront wheels away f rom the
curb, and put the transmission in
f irst gear.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb, and put the transmission 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.Your vehicle is not designed to tow a
trailer. Attempting to do so can void
your warranties.
Make sure the moonroof and the
windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.
in the cargo area, or take them
with you.
Lock the doors.
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.
Driving
Parking Brake
Towing a Trailer
Parking, Towing a Trailer
126
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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 . 188
................................
Specif ications . 190
DOT Tire Quality Grading
......................
(U.S. Vehicles) . 192
.................................
Treadwear . 192
......................................
Traction . 192
.............................
Temperature . 193
.................................
Tire Labeling . 193 .......................
Emissions Controls . 194
.....................
The Clean Air Act . 194
Crankcase Emissions Control
....................................
System . 194
Evaporative Emissions Control ....................................
System . 194
Onboard Ref ueling Vapor ................................
Recovery . 194
...
Exhaust Emissions Controls . 195
....................
PGM-FI System . 195
Three Way Catalytic
...........................
Converter . 195
....................
Replacement Parts . 195
..
Three Way Catalytic Converter . 196
..............
State Emissions Testing . 197
T echnical Inf ormat ion
T echnical Inf ormation 187
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The exhaust emissions controls
include three systems: PGM-FI,
Ignition Timing Control, and Three
Way Catalytic Converter. These
three 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)
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 con-
ditions.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
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.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
quality parts may increase the
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.
2
2
Emissions Cont rols
T echnical Inf ormation
Exhaust Emissions Controls
Replacement Parts
PGM-FI Syst em
Three Way Catalytic Converter
Ignit ion T iming Cont rol Syst em
195
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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.
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.
Parkyourvehicleawayfromhigh
grass, dry leaves, or other f lamma-
bles.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
T echnical Inf ormation
196 THREE WAY CATALYTIC CONVERTER
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Î
.....................................
Tachometer . 57
......
Taillights, Changing Bulbs in . 149
Taking Care of the
...............................
Unexpected . 165
....................................
Tape Player . 100
Technical Descriptions
......
DOT Tire Quality Grading . 192
.....
Emissions Control Systems . 194
Three Way Catalytic
...............................
Converter . 195
.......................
Temperature Gauge . 58
..............
Tether Anchorage Points . 42
..
Three Way Catalytic Converter . 196
..................
Tilt the Steering Wheel . 63
..........................
Time, Setting the . 104
....................................
Tire Chains . 161
.........
Tire, How to Change a Flat . 167 ...........................
Tire Inf ormation . 193
...............................................
Tires . 157
..............................
Air Pressure . 157
.........................
Checking Wear . 159
..........................
Compact Spare . 166
......
DOT Tire Quality Grading . 192
......................................
Inf lation . 157
..................................
Inspection . 159
...................................
Replacing . 160
......................................
Rotating . 160
...........................................
Snow . 161
............................
Specif ications . 191
................................
Tire Chains . 161
...................
Tools, Tire Changing . 167
Towing
.....................................
A Trailer . 126
................
Emergency Wrecker . 185
Transmission
Checking Fluid Level, ...................................
Manual . 143
...........................
Fluid Selection . 143
..............
Identif ication Number . 188
..................
Shif ting the Manual . 124
.....................................
Treadwear . 192
.......................................
Trip Meter . 57
....................................
Turn Signals . 61 Warning Beepers
..............................
Headlights on . 61
.............................
Key in Ignition . 66
.............
WARNING, Explanation of . ii
.........
Warning Labels, Location of . 48
..................
Warranty Coverages . 201
Unexpected, Taking Care
..........................................
of the . 165
....
Unif orm Tire Quality Grading . 192
........................
Unleaded Gasoline . 110
.......
Used Oil, How to Dispose of . 140
Supplemental Restraint
................................
System . 10, 22
......................................
Servicing . 28
.........................
SRS Indicator . 26, 52
...................
System Components . 22
..................................
Synthetic Oil . 138
.................
Vehicle Capacity Load . 118
......................
Vehicle Dimensions . 190
....
Vehicle Identif ication Number . 188
.............................
Vehicle Storage . 163
........................................
Ventilation . 88
.................................................
VIN . 188
..................................
Viscosity, Oil . 138
Index
T U V W
VIII
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