2006 HONDA ACCORD COUPE engine

Î
ÎThe 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.
Controlling the production of NOx,
CO, and HC is important to the
environment. Under certain
conditions of sunlight and climate,
NOx and HC react to f orm
photochemical ‘‘smog.’’ Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas. The 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.
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.
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.
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 .
Emissions Cont rols
The Clean Air Act
Crankcase Emissions Control
System
Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Technical Inf ormation
297
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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.
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. Itthen controls how much f uel to inject
under all operating conditions. 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 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. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemExhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
Three Way Catalytic Converter
298
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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
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
299
4-cylinder models
6-cylinder models
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTERS
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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 retested 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). 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).
Then drive in city/suburban
traffic for at least 10 minutes.
When traffic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
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 the
readiness codes are still not set, see
your dealer.
Make sure the vehicle has been
parked with the engine of f f or 6
hours or more.
Make sure the ambient
temperature is between 40° and
95°F.
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 (A/T) or fifth/sixth (M/T). Do not use
thecruisecontrol.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).
State Emissions T esting
T esting of Readiness Codes
300
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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 complements the service manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
This manual describes the procedures involved in the
replacement of damaged body parts.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
306
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.
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CONT INUED
BatteryCharging System ...........................
Indicator . 57, 276
............................
Jump Starting .272
..............................
Maintenance .260
....................
Specifications . 291, 293
..............................
Bef ore Driving .183
....................................
Belts,Seat .8,17
...........................
Beverage Holders .98
..................................
Booster Seats .47
Brakes
...........
Anti-lock System (ABS) .209
.............
Break-in, New Linings .184
...........................................
Fluid .243
.........................................
Parking .96
..........................
System Design .208
.................
System Indicator . 58, 278
........................
Wear Indicators .208
.............................
Braking System .208
.................
Break-in, New Vehicle .184
..
Brightness Control, Instruments . 71
........................
Brights, Headlights .69
....................................
Accessories .191
ACCESSORY (Ignition Key
.......................................
Position) .76
............
Accessory Power Sockets .100
................
Adding Engine Coolant .236
Additional Inf ormation About Your
.........................................
Airbags .21
....................
Additives, Engine Oil .233
.......
Adjusting the Steering Wheel .73
...........................
Advanced Airbags .25
.........
Advice f or Pregnant Women .15
...............................
Airbag (SRS) . 9, 21
..............
Air Conditioning System .106
.........................
Manual System . 108
.....................
Automatic System .113
Automatic System with
.................
navigation system .117
.......................
Air Pressure, Tires .256
.......................
Alcohol in Gasoline .184
All Children Should Sit in a
.....................................
Back Seat .33
......................................
Antif reeze .236
Anti-lock Brakes (ABS)
...............................
Indicator . 59, 209 ...................................
Operation .209
..............
Anti-thef t, Audio System .172
.
Anti-thef t Steering Column Lock .76
............................................
Armrest .85
................................
Audio System .124
.................
AM/FM/CD Player .126
.............
AM/FM/CD Changer .136
AM/FM/CD Changer with
.................
navigation system .149
...
Automatic Lighting Off Feature .70
...
Automatic Seat Belt Tensioners .19
..
Automatic Climate Control . 113, 117
.............
Automatic Speed Control .175
..............
Automatic Transmission .203
..................
Capacity, Fluid . 290, 292
.......
Checking Fluid Level . 239, 240
.......................................
Shif ting .203
Shif t Lever Position
...............................
Indicators .203
................
Shif t Lever Positions .204
....................
Shif t Lock Release .206
Index
A B
INDEX
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..............................
Economy, Fuel .190
..................................
Emergencies .263
.............
Battery, Jump Starting .272
...........
Brake System Indicator .278
................
Changing a Flat Tire .265
.....
Charging System Indicator .276
..................
Checking the Fuses .280
.........
Hazard Warning Flashers .71
............................
Jump Starting .272
.....
Low Oil Pressure Indicator .276
...
Malf unction Indicator Lamp .277
...
Manually Closing Moonroof .279
..................
Overheated Engine .274
.......................................
Towing .285
...........................
Emergency Brake .96
......................
Emergency Flashers .71
......................
Emergency Towing .285
............
Emergency Trunk Opener .81
.......................
Emissions Controls .297
.............
Emissions Testing, State .300 Engine
............
Adding Engine Coolant .236
....................................
Additives .233
.....
Changing the Oil and Filter .233
....
Coolant Temperature Gauge . 64
.........................
If It Won’t Start .270
Malf unction Indicator
......................................
Lamp .277
.........................
Oil Lif e Display .221
........
Oil Pressure Indicator . 57, 276
.............................
Oil, Synthetic .233
..............
Oil, What Kind to Use .232
...............................
Overheating .274
....................
Specifications . 291, 293
....................
Speed Limiter . 202, 205
.......................................
Starting .199
..........
Engine Speed Limiter . 202, 205
......................
Ethanol in Gasoline .184
.
Evaporative Emissions Controls .297
...............................
Exhaust Fumes .50
Expectant Mothers, Use of Seat
........................................
Belts by .15
................
Daytime Running Lights .70
Daytime Running Lights
.......................................
Indicator .60
.................................
Dead Battery .272
............
Def ects, Reporting Saf ety .304
................
Def ogger, Rear Window .72
Defrosting the
....................
Windows . 111, 115, 120
............................
Dimensions .290, 292
...............
Dimming the Headlights . 69
Dipstick .
Automatic Transmission . 239, 240
..........................
Engine Oil . 188, 189
..........................
Directional Signals .69
........
Disc Brake Wear Indicators .208
.....................
Disposal of Used Oil . 235
....
Door and Trunk Open Monitor . 61
Doors ..............
Locking and Unlocking .77
......................
Power Door Locks .77
........
DOT Tire Quality Grading .294
Downshif ting, Manual
.............................
Transmission .200
...........
Driver and Passenger Safety .5
...........................................
Driving .197
....................................
Economy .190 ..........
Dual Temperature Control .121
..................
Dust and Pollen Filter .252
Index
INDEX
E
III
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ÎÎ
..................................................
Keys .74
.....................................
Heater, Seat .90
.............
High Altitude, Starting at .199
HomeLink Universal
................................
Transceiver .178
..
Hood, Opening and Closing the .186
..................................................
Horn .67
...........................
Hydraulic Clutch .244
.................
Jacking up the Vehicle .267
.......................................
Jack, Tire .266
................................
Jump Starting .272
...
Identif ication Number, Vehicle .288
..............
If the Engine Overheats .274
.............
If the Engine Won’t Start .270
Ignition
..............................................
Keys .74
...........................................
Switch .76
............
Timing Control System .298
........................
Immobilizer System .75
.........
Important Safety Precautions .6
...................................
Indicators . 55, 56
.......
ABS (Anti-lock Brake) . 59, 209
Brake (Parking and Brake ............................
System) . 58, 278
................
Charging System . 57, 276
...........................
Check Fuel Cap .65
.............................
Cruise Control .62 ................
Door and Trunk Open .61
DRL (Daytime Running
......................................
Lights) .60
...................................
High Beam .60
........
Key (Immobilizer System) .59
.....................................
Lights On .60
......................................
Low Fuel .60
................
Low Oil Pressure . 57, 276
..................
Maintenance Minder .61
..............
Malfunc tion Lamp . 57, 277
.................
Passenger Airbag Off . 29
.................
Seat Belt Remider . 17, 57
..........................
Security System .61
...........................
Side Airbag Of f .58
...............................................
SRS .58
Turn Signal and Hazard
...................................
Warning .59
VSA (Vehicle Stability ..............................
Assist) . 62, 211
..........................
Washer Level . 60
.........
Indicators, Instrument Pan el . 57
...............................
Inf ant Restraint .37
......................................
Inf ant Seats .37
...................
Inf lation, Proper Tire .255
........
Recommended Pressures .256 ........................
Inf ormation Display .63
...........................
Check Fuel Cap .65
..........................
Engine Oil Lif e .221
...................
Maintenance Items .224
.....................................
Odometer .63
.................
Outside Temperature .65
.....................................
Tripmeter .64
...................................
Inside Mirror .95
.............................
Inspection, Tire .256
....................
Installing a Child Seat .40
............................
Instrument Panel .55
........
Instrument Panel Brightness .71
..............
Instruments and Controls .53
...............................
Interior Lights .102
........................................
Introduction .i
Index
J
K
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INDEX
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