2011 HONDA ACCORD exhaust system

Your vehicle’s exhaust contains
carbon monoxide gas. Carbon
monoxide should not enter the
vehicle in normal driving if you
maintain your vehicle properly and
f ollow the inf ormation on this page.High levels of carbon monoxide can
collect rapidly in enclosed areas,
such as a garage. Do not run the
engine with the garage door closed.
Even with the door open, run the
engine only long enough to move the
vehicle out of the garage.
Have the exhaust system inspected
f or leaks whenever:
The vehicle is raised f or an oil
change.
You notice a change in the sound
of the exhaust.
The vehicle was in a collision that
may have damaged the underside. With the trunk open, airf low can pull
exhaust gas into your vehicle’s
interior and create a hazardous
condition. If you must drive with the
trunk open, open all the windows and
set the heating and cooling system/
climate control system as shown
below.
Select the f resh air mode.
Select the mode.
Turn the f an on high speed.
Set the temperature control to a
comfortable setting.
If you must sit in your parked vehicle
with the engine running, even in an
unconf ined area, adjust the heating
and cooling system/climate control
system as f ollows: 1. 2.3.4.
Carbon Monoxide Hazard
Driver and Passenger Saf ety
51
Carbon monoxide gas is toxic.
Breathing it can cause
unconsciousness and even killyou.
Avoid any enclosed areas or
activities that expose you to
carbon monoxide.
Main Menu

All service items not detailed in this
section should be perf ormed by a
certif ied technician or other qualif ied
mechanic.
To eliminate potential hazards, read
the instructions bef ore you begin,
and make sure you have the tools
and skills required.Make sure your vehicle is parked
on level ground, the parking brake
is set, and the engine is of f .
Some of the most important saf ety
precautions are given here. However,
we cannot warn you of every
conceivable hazard that can arise in
perf orming maintenance. Only you
can decide whether or not you
should perf orm a given task.Do
not run the engine unless
instructed to do so.
Let the
engine and exhaust system cool
down bef ore touching any parts. Be sure
there is adequate ventilation
whenever you operate the
engine.
Wear eye protection and
protective clothing when working
with the battery or compressed air.
To reduce the possibility of f ire or
explosion, keep cigarettes, sparks,
and flames away from the battery
and all f uel-related parts.
To clean parts, use a commercially
available degreaser or parts
cleaner, not gasoline.
Maintenance Saf ety
Important Saf ety Precautions
Injury f rom moving parts.
Burns f rom hot parts.
Carbon Monoxide poison
f rom engine exhaust.
Potential Vehicle Hazards
342
Failure to properly follow
maintenance instructions and
precautions can cause you to
be seriously hurt or killed.
Always follow the procedures
and precautions in this owner’smanual.
Improperly maintaining this
vehicle, or failing to correct a
problem before driving can
cause a crash in which you can
be seriously hurt or killed.
Always follow the inspection
and maintenance
recommendations and
schedules in this owner’smanual.
Main Menu

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Maintenance Minder
349
Maintenance Main Items
Replace engine oil
Replace engine oil and oil filter
Inspect front and rear brakes
Check parking brake adjustment
Inspect these items: Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS/VSA)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections Maintenance Sub Items
Rotate tires
Replace air cleaner element
Replace dust and pollen filter
Inspect drive belt
Replace transmission fluid
Replace spark plugs
Replace timing belt and inspect water pump
(V6 engine only)
Inspect valve clearance
Replace engine coolant
AB
Symbol
12 3 4 5
Symbol1 1
:
Inspect idle speed every 160,000 miles (256,000 km).
Adjust the valves during services A, B, 1, 2, or 3 only if they are noisy.
If the message ‘‘SERVICE’’ does not appear more than 12 months after the
display is reset, change the engine oil every year.
See information on maintenance and emissions warranty in the center
column on page .
Independent of the Maintenance Minder information, replace the brake
fluid every 3 years.
NOTE: 1:
348
TM
If you drive in dusty conditions, replace every 15,000
miles (24,000 km).
If you drive primarily in urban areas that have high
concentrations of soot in the air from industry and from
diesel-powered vehicles, replace every 15,000 miles
(24,000 km).
If you drive regularly in very high temperatures (over
110°F, 43°C), or in very low temperatures (under 20°F,29°C), replace every 60,000 miles (U.S.)/100,000 km
(Canada).
Maintenance Minder
Main Menu

The exhaust emissions controls
includethreeorfoursystems:
PGM-FI, ignition timing control,
exhaust gas recirculation (6-cylinder
models), and three way catalytic
converter. These 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
covered by warranties separate f rom
the rest of your vehicle. 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
Honda replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
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 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. It
then controls how much f uel to inject
under all operating conditions.
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
V6 models
Exhaust Emissions Controls
Replacement Parts
Emissions Cont rols
Three Way Catalytic Converter
PGM-FI System Exhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
T echnical Inf ormation
431
Main Menu

..........................
CD Changer . 165, 214
.......................................
CD Player . 144
........................
Certif ication Label . 418
............................................
Chains . 386
....................
Changing a Flat Tire . 393
Changing Oil
........................................
How to . 354
......................................
When to . 343
...
Charging System Indicator . 56, 405
............
Check Fuel Cap Message . 298
............
Checklist, Bef ore Driving . 316
.....................................
Child Saf ety . 33
..............................
Booster Seats . 48
.............................
Child Seats . 40, 41
Important Saf ety
..........................
Reminders . 33-50
..........................................
Inf ants . 38
..........................
Larger Children . 47
.........................................
LATCH . 42
......................
Risks with Airbags . 34
.............................
Small Children . 39
..........................................
Tether . 46
...........................
Warning Labels . 52
..........
Where Should a Child Sit . 34
.......................................
Child Seats . 33
.........................................
LATCH . 42 ..........
Tether Anchorage Points . 46
..................
Childproof Door Locks . 86
................
Cleaning the Seat Belts . 375
...............
Climate Control System . 128
..........................
On/Off Button . 130
..............................................
Clock . 254
...................................
Clutch Fluid . 363
..................
CO in the Exhaust . 51, 432
............
Cold Weather, Starting in . 317
..............................
Compact Spare . 392
.........................................
Compass . 259
.................
Console Compartment . 115
.................
Consumer Inf ormation . 436
.............
Controls, Instruments and . 53
Coolant
........................................
Adding . 356
....................................
Checking . 303
.........................
Proper Solution . 356
...................
Temperature Gauge . 66
Crankcase Emissions Control
........................................
System . 430
................
Cruise Control Indicator . 62
............
Cruise Control Operation . 263
.........................
Customer Service . 436 ...............
DANGER, Explanation of . iii
...................................
Dashboard . 3, 54
..........
Daytime Running Lights . 61, 71
Daytime Running Lights
.......................................
Indicator . 61
.................................
Dead Battery . 400
............
Def ects, Reporting Saf ety . 438
................
Def ogger, Rear Window . 74
......
Def rosting the Windows . 126, 132
............................
Dimensions . 420, 422
...............
Dimming the Headlights . 69
Dipstick
..........
Automatic Transmission . 359
..................................
Engine Oil . 302
..........................
Directional Signals . 69
........
Disc Brake Wear Indicators . 326
.....................
Disposal of Used Oil . 355
Doors
..........................
Auto Door Lock . 80
.......................
Auto Door Unlock . 83
..............
Childproof Door Locks . 86
..............
Locking and Unlocking . 79
..........
DOT Tire Quality Grading . 424
Index
D
II
Main Menu

CONT INUED
Downshif ting, Manual.............................
Transmission . 318
...........
Driver and Passenger Safety . 5
...........................................
Driving . 315
....................................
Economy . 304
Driving Position Memory
........................................
System . 101
..........
Dual Temperature Control . 133
..................
Dust and Pollen Filter . 376
..............................
Economy, Fuel . 304
Electronic Stability Control (ESC)
........................................
System . 329
..................................
Emergencies . 391
.............
Battery, Jump Starting . 400
...........
Brake System Indicator . 407
................
Changing a Flat Tire . 393
.....
Charging System Indicator . 405
.........
Hazard Warning Flashers . 73
............................
Jump Starting . 400
..................
Checking the Fuses . 408
.....
Low Oil Pressure Indicator . 405
...
Malf unction Indicator Lamp . 406
..................
Overheated Engine . 403 .......................................
Towing . 415
.........................
Emergency Brake . 112
......................
Emergency Flashers . 73
......................
Emergency Towing . 415
.......................
Emissions Controls . 430
........................
Emissions Testing . 433Engine
............
Adding Engine Coolant . 356
....
Coolant Temperature Gauge . 66
.........................
If It Won’t Start . 398
...
Malf unction Indicator Lamp . 406
.......................
Oil Lif e Indicator . 343
..............
Oil Pressure Indicator . 405
..............
Oil, What Kind to Use . 352
...............................
Overheating . 403
....................
Specif ications . 420, 422
....................
Speed Limiter . 319, 323
.......................................
Starting . 317
................................................
V6 . 422
...................................
4-cylinder . 420
..........
Engine Speed Limiter . 319, 323
......................
Ethanol in Gasoline . 297
.
Evaporative Emissions Controls . 430
...............................
Exhaust Fumes . 51
Expectant Mothers, Use of Seat
........................................
Belts by . 16 ..........................
Fan, Interior . 123, 131
.........................................
Features . 121
....................
Filling the Fuel Tank . 297
Filters
........................
Dust and Pollen . 376
...............................................
Oil . 354
.............
Flashers, Hazard Warning . 73
...................
Flat Tire, Changing a . 393
.....................................
Floor Mats . 375
Fluids
..........
Automatic Transmission . 359
..........................................
Brake . 362
.........................................
Clutch . 363
..............
Manual Transmission . 361
..........................
Power Steering . 363
..................
Windshield Washer . 358
........................................
Fog Lights . 72
...........................
Folding Rear Seat . 97
..........................
Four-way Flashers . 73
..............................
Front Airbags . 9, 23
Index
INDEX
E F
III
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