2007 HONDA CIVIC HYBRID catalytic converter

When either of the trip meters (trip
A or trip B) is displayed, your
vehicle’s average fuel mileage since
you last reset that trip meter can be
shownontheinformationdisplay
(mpg or l/100km). This number is
updated once per 10 seconds. To see
the average f uel mileage, press and
release the SEL/RESET button
repeatedly.This shows how much f uel you have.
It may show slightly more or less
than the actual amount.
The average f uel mileage will be
reset when you reset the trip meter,
or if the vehicle’s battery goes dead
or is disconnected.
This meter shows the number of
miles or kilometers driven since you
last reset it.
There are two trip meters: TRIP A
and TRIP B. Switch between these
displays by pressing the SEL/
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 SEL/RESET
button until the number resets to
‘‘0.0.’’ A verage Fuel Mileage Fuel Gauge
Trip Meter
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.

Make sure the windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.If the vehicle is f acing downhill,
turn the front wheels toward the
curb.
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.
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 on an
incline.
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.
If the vehicle is f acing uphill, turn
the front wheels away from the
curb.
Set the parking brake bef ore you put
the transmission in Park. This keeps
the vehicle from moving and putting
pressure on the parking mechanism
in the transmission.
Parking T ips
Parking
172
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.

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 .240
................................
Specif ications .242
DOT Tire Quality Grading
......................
(U.S. Vehicles) .244
Unif orm Tire Quality ..................................
Grading .244
.................................
Treadwear .244
......................................
Traction .244
.............................
Temperature .245
.................................
Tire Labeling .246 .......................
Emissions Controls . 247
.....................
The Clean Air Act . 247
Crankcase Emissions Control ....................................
System .247
Evaporative Emissions Control ....................................
System .247
Onboard Ref ueling Vapor ................................
Recovery .247
...
Exhaust Emissions Controls .248
....................
PGM-FI System .248
Ignition Timing Control
................................
System .248
Exhaust Gas Recirculation ...................
(EGR) System .248
Three Way Catalytic ...........................
Converter .248
....................
Replacement Parts .248
..
Three Way Catalytic Converter .249
..............
State Emissions Testing .250
T echnical Inf ormation
Technical Inf ormation
239

The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our 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 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 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)
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 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 ), nitrogen
(N ), and water vapor.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
248

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
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
Technical Inf ormation
249
THREE WAY CATALYTIC CONVERTER
U.S. model shown

CONT INUED
.........................................
Spotlights .97
..........
SRS, Additional Inf ormation .21
...
Additional Safety Precautions .32
.............................
Airbag Service .32
How the Passenger Airbag Of f
......................
Indicator Works .31
How the Side Airbag Of f ......................
Indicator Works .30
..
How the SRS Indicator Works .30
How Your Front Airbags
.........................................
Work .24
...
How Your Side Airbags Work .28
How Your Side Curtain
..........................
Airbags Work .29
........................
SRS Components .21
.............................
SRS Indicator . 30, 59
....
START (Ignition Key Position) .79
..............
State Emissions Testing .250
.......................
Starting the Engine .165
In Cold Weather at High ..................................
Altitude .165
................
With a Dead Battery . 223
........
Steam Coming f rom Engine . 225
Steering Wheel ..................................
Adjustment .75
.............
Anti-theft Column Lock . 79...................
Stereo Sound System . 106
....................
Storing Your Vehicle .213
Supplemental Restraint ..................................
System .9,21
......................................
Servicing .32
.........................
SRS Indicator . 30, 59
...................
System Components . 21
.........................................
SVC . 111, 124
..................................
Synthetic Oil .190
Taillights, Changing ..................................
Bulbs . 200, 201
.
Taking Care of the Unexpected . 215
Technical Descriptions ......
DOT Tire Quality Grading . 244
.....
Emissions Control Systems . 247
.....................
Oxygenated Fuels .150
..........
State Emissions Testing . 250
Three Way Catalytic ...............................
Converter .249
.................................
Tire Labeling .246
.......................
Temperature Gauge .65
..............
Tether Anchorage Points . 47
............................
Thef t Protection .142 ..
Three Way Catalytic Converter . 249
..........................
Time, Setting the .119
....................................
Tire Chains .211
.........
Tire, How to Change a Flat . 217
...........................
Tire Inf ormation .244
...............................................
Tires .207
..............................
Air Pressure .208
.........................
Checking Wear .209
..........................
Compact Spare .216
......
DOT Tire Quality Grading . 244
......................................
Inf lation .207
..................................
Inspection .209
..............................
Maintenance .209
...................................
Replacing .210
......................................
Rotating .210
...........................................
Snow .211
............................
Specif ications .243
................................
Tire Chains .211
...................
Tools, Tire Changing . 217
Towing .....................................
A Trailer .175
..................
Emergency Towing . 237
...........................
Traction Devices .211
Index
INDEX
T
VII