2005 HONDA CIVIC HYBRID engine

Î
ÎThe United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page .
The burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx) and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas.
In Canada, Honda vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive crankcase ventilation valve routes
them from the crankcase back to the
intake manif old. They are then
drawn into the engine and burned.
The onboard ref ueling vapor
recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f . As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
143
The Clean Air Act
Crankcase Emissions Control
System
Onboard Ref ueling Vapor
Recovery Evaporative Emissions Control
System
Emissions Cont rols
T echnical Inf ormation
207

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
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.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 ), nitrogen
(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 from
the rest of your vehicle. Read your
warranty manual for more inf orma-
tion.
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 PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel control. The
transmission control module (TCM)
in automatic transmission (CVT)
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.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
208

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
209
THREE WAY CATALYTIC CONVERTER

If you take your vehicle f or a state
emissions test shortly af ter the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain ‘‘readiness
codes’’ that must be set in the on-
board diagnostics f or the emissions
systems. These codes are erased
when the battery is disconnected,
and set again only after several days
of driving under a variety of
conditions.
If the testing f acility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle re-tested within the
next two or three days, you can
condition the vehicle f or retesting by
doing the f ollowing.Make sure the gas tank is nearly,
but not completely, f ull (around
3/4). Make sure the vehicle has been
parked with the engine of f f or 8
hours or more.
Make sure the ambient
temperature is between 20° and
95°F.
Without touching the accelerator
pedal, start the engine, and let it
idle f or 20 seconds.
Keep the vehicle in Park
(automatic transmission) or
Neutral (manual transmission).
Increase the engine speed to 2,000
rpm,andholditthereuntilthe
temperature gauge rises to at least
1/4of thescale(about3minutes).
Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
(80to97km/h)foratleast20
minutes. Drive on the highway in
D (CVT) or 5th (M/T). Do not usethecruisecontrol.Whentraffic
allows, drive f or 90 seconds
without moving the accelerator
pedal. (Vehicle speed may vary
slightly; this is okay.) If you cannot
do this f or a continuous 90
seconds because of traf f ic
conditions, drive f or at least 30
seconds, then repeat it two more
times (for a total of 90 seconds).
If the testing facility determines the
readiness codes are still not set, see
your dealer. Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
T esting of Readiness Codes
St at e Emissions T est ing
210

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#
) This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual describes the procedures involved in the
replacement of damaged body parts. This manual complements the service manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
216
NOTE: Dealers and Companies please provide dealer or company name,
and also the name of the person to whose attention the shipment should
be sent. For purchases outside U.S.A. please write to the address shown
below for a quotation.
P.O. BOX 07280·DETROIT, MICHIGAN 48207·1-800-782-4356
Customer Name Attention
Apartment Number
State & Zip Code
City
Daytime Telephone Number
Check or money order enclosed payable to Helm Inc U.S. funds only.
Do not send cash
Master
Card VISA
Check here if your billing address is different
from the shipping address shown above.
Account Number Expiration: Mo. Yr.
CUSTOMER SIGNATURE DATE
Street Address No P.O. Box Number
()
These Publications cannot be returned for credit without receiving advance authorization within 14
days of delivery. On returns, a restocking fee may be applied against the original order.

CONT INUED
BatteryCharging System ...........................
Indicator .54, 189
............................
Jump Starting .184
..............................
Maintenance .173
............................
Specif ications .203
..............................
Bef ore Driving .111
....................................
Belts,Seat .8,18 .............................
Beverage Holder .83
..................................
Booster Seats .42
Brakes ...........
Anti-lock System (ABS) . 139
.............
Break-in, New Linings . 112
....................
Bulb Replacement .161
...........................................
Fluid .158
.........................................
Parking .81
.................
System Indicator . 54,191
........................
Wear Indicators .138
.............................
Braking System .138
.................
Break-in, New Vehicle . 112
..
Brightness Control, Instruments . 67
........................
Brights, Headlights .66
Bulb Replacement ..........................
Back-up Lights .162
..............................
Brake Lights .161
................
Front Parking Lights . 160
........
Front Side Marker Lights . 160
.................................
Headlights .159
.........
High-mount Brake Light . 163
.........
Rear Side Marker Lights . 161
............................
Specif ications .203
....................................
Accessories .119
ACCESSORY (Ignition Key .......................................
Position) .72
...............
Accessory Power Socket . 83
....................
Additives, Engine Oil . 151
...............................
Airbag (SRS) .9, 21
...
Airbags, Additional Information . 21
...
Additional Safety Precautions . 26
.............................
Airbag Service .26
How the Side Airbag Of f ......................
Indicator Works .26
..
How the SRS Indicator Works . 25
How Your Front Airbags .........................................
Work .22
...
How Your Side Airbags Work . 24
........................
SRS Components .21
................
Air Conditioning System . 86
.......................
Air Pressure, Tires .168
..................
High Speed Driving . 169
.........................
Normal Driving .169
......................................
Antif reeze .153
Anti-lock Brakes (ABS) ...............................
Indicator .54, 139
...................................
Operation .139 ..............
Anti-thef t, Audio System . 106
Anti-thef t Steering Column ..............................................
Lock .72
..................................
Audio System .93
........................
Auto Idle Stop .129, 135
...
Automatic Seat Belt Tensioners . 19
.............
Automatic Speed Control . 108
.
Automatic Transmission (CVT) . 131
..........................
Capacity,Fluid .202
...............
Checking Fluid Level . 156
.......................................
Shif ting .132
Shif t Lever Position ...............................
Indicators .131
................
Shif t Lever Positions . 131
....................
Shif t Lock Release . 134
Index
A
B
INDEX
I

Î
Bulb Replacement....................
Turn Signal Lights . 160
..............................
Bulbs, Halogen .159
............................
Capacities Chart .202
.............
Carbon Monoxide Hazard . 45
.............................
Carrying Cargo .121
Cassette Player ............................................
Care .105
...................................
Operation .103
..............
CAUTION, Explanation of . ii
.........................................
CD Care .100
.....................................
CD Changer .99
.....
CD Changer Error Messages . 102
.........
CD Player Error Messages . 101
.........................................
CD Player .98
....................................
Ceiling Light .84
........................
Certif ication Label .200
............................................
Chains .172
....................
Changing a Flat Tire .177
Changing Oil ........................................
How to .151
......................................
When to .145
...
Charging System Indicator . 54,189 ............
Checklist, Bef ore Driving . 126
.....................................
Child Saf ety .27
..............................
Booster Seats .42
...................................
Child Seats .34
.....
Important Saf ety Reminders . 27
..........................................
Inf ants .32
............................
Large Children .41
.........................................
LATCH .36
...........................
Lower Anchors .36
......................
Risks with Airbags .28
.............................
Small Children .33
.........................................
Tethers .40
.........
Where Should a Child Sit? . 28
..................
Childproof Door Locks . 73
.........................
Clock, Setting the .107
...................................
Clutch Fluid .158
........................
CO in the Exhaust .207
............
Cold Weather, Starting in . 127
..............................
Compact Spare .176
...............
Consumer Inf ormation . 212
.............
Controls, Instruments and . 49
Coolant ........................................
Adding .153
....................................
Checking .116
.........................
Proper Solution .153
...................
Temperature Gauge . 63Crankcase Emissions Control
........................................
System .207
................
Cruise Control Indicator . 56
............
Cruise Control Operation . 108
.................
Cup (Beverage) Holder . 83
..........
Customer Relations Of f ice . 212
................
DANGER, Explanation of . ii
...................................
Dashboard .3, 50
................
Daytime Running Lights . 66
Daytime Running Lights .......................................
Indicator .57
.................................
Dead Battery .184
............
Def ects, Reporting Saf ety . 214
..........................
Def og and Def rost .90
................
Def ogger, Rear Window . 68
................
Def rosting the Windows . 90
....................................
Dimensions .202
...............
Dimming the Headlights . 66
Dipstick ..........
Automatic Transmission . 156
..................................
Engine Oil .116
..........................
Directional Signals .66
........
Disc Brake Wear Indicators . 138
Index
C
D
II

CONT INUED
.....................
Disposal of Used Oil .153
Doors ..............
Locking and Unlocking . 73
......................
Power Door Locks .73
..........
DOT Tire Quality Grading . 204
Downshif ting, Manual .............................
Transmission .128
...........
Driver and Passenger Safety . 5
...........................................
Driving .127
....................................
Economy .117
..................
Dust and Pollen Filter . 165
..............................
Economy, Fuel .117
......
Electric Power Steering (EPS) . 55
..................................
Emergencies .175
............................
Jump Starting .184
.......................................
Towing .197
.............
Hazard Warning Button . 67
.............
Battery, Jump Starting . 184
...........
Brake System Indicator . 191
................
Changing a Flat Tire . 177
.....
Charging System Indicator . 189
..................
Checking the Fuses . 192
.....
Low Oil Pressure Indicator . 188 ...
Malf unction Indicator Lamp . 190
..................
Overheated Engine . 186
...........................
Emergency Brake .81
......................
Emergency Flashers .67
......................
Emergency Towing .197
............
Emergency Trunk Opener . 74
.......................
Emissions Controls .207
.............
Emissions Testing, State . 210
Engine ....
Coolant Temperature Gauge . 63
......
Engine Speed Limiter . 128,133
.........................
If It Won’t Start .182
Malf unction Indicator ................................
Lamp .54, 190
........
Oil Pressure Indicator . 54,188
..............
Oil, What Kind to Use . 150
...............................
Overheating .186
............................
Specif ications .202
.......................................
Starting .127
.
Evaporative Emissions Controls . 207
...............................
Exhaust Fumes .45
Expectant Mothers, Use of Seat ........................................
Belts by .16 .....................................
Fan, Interior .88
.........................................
Features, .85
....................
Filling the Fuel Tank . 113
Filters .........................
Dust and Pollen .165
...............................................
Oil .151
.............
Flashers, Hazard Warning . 67
...................
Flat Tire, Changing a . 177
Fluids ..........
Automatic Transmission . 156
..........................................
Brake .158
.........................................
Clutch .158
..............
Manual Transmission . 157
..................
Windshield Washer . 155
FM Stereo Radio .....................................
Reception .96
..........................
Four-way Flashers .67
..............................
Front Airbags .9 ,21
........................................
Front Seat .77
......................................
Adjusting .77
.....................................
Airbags .9, 21
Index
F
E
INDEX
III