2007 HONDA ACCORD SEDAN catalytic converter

This shows how much fuel you have.
It may show slightly more or less
th an the actual amount. The needle
returns to the bottom after you turn
off the ignition. The
information display in the
instrument panel shows you the
engine oil life and maintenance
service items when the ignition
switch is in the ON (II) position. This
information helps to keep you aware
of the periodic maintenance your
vehicle needs for continued trouble-
free driving. Refer to page for
more information.
If
your fuel cap is loose or missing, a
‘‘CHECK FUEL CAP’’ message will
appear in the information display. As
soon as it is safely possible, turn the
engine off and check that the fuel
cap is installed. If it is, loosen the cap
and tighten it to at least 1 click.
Al though you can use the select/
resetknobtocyclethefuelcap
warningo ffofthedisplay,itwillbe
displayedagai neachtimetheengine
isstarted.Itwillta keseveraldaysof
normaldrivingforthevehicletotu rn
thewarningoff.
Ifthevehicleonboarddiagnostic
systemcontinue stodetecta
problem,the mal function indicator
lamp(MIL)willilluminate.Ifthe
MILdoesnotgo off, have your
de aler inspect the vehicle. For more
info rmation, see page . 193
254
Fuel Gauge
Check Fuel Cap IndicatorMaintenance Minder Display
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.

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 your vehicle has an automatic
transmission, set the parking brake
bef ore you put the transmission in
Park. This keeps the vehicle f rom
moving and putting pressure on the
parking mechanism in the
transmission.Make sure the moonroof (if
equipped) and the windows are
closed.
Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Lockthedoorswiththekeyorthe
remote transmitter.
If your vehicle has a manual
transmission, put it in f irst gear. Make sure the parking brake is
f ully released bef ore driving away.
Driving with the parking brake
damage the rear brakes. the front wheels away from the
If the vehicle is f acing downhill,
turn the front wheels toward the
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. Check the indicator on the
instrument panel to verif y that the
security system is set.
U.S. EX, EX-L, and 6-cylinder models Canadian SE, EX-L, and 6-cylindermodels
Parking T ips
Parking
178
curb and set the parking brake.
If your vehicle has a manual If the vehicle is f acing uphill, turn
transmission, put it in f irst gear.
transmission, put it in reverse gear
partially set can overheat or curb and set the parking brake.
If your vehicle has a manual

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 . 266
................................
Specif ications .268
DOT Tire Quality Grading ......................
(U.S. Vehicles) .271
Unif orm Tire Quality ..................................
Grading .271
.................................
Treadwear .271
......................................
Traction .271
.............................
Temperature .272
.................................
Tire Labeling .273
.......................
Emissions Controls .274
.....................
The Clean Air Act .274
Crankcase Emissions Control ....................................
System .274
Evaporative Emissions Control ....................................
System .274
Onboard Ref ueling Vapor ................................
Recovery .274
...
Exhaust Emissions Controls . 275
....................
PGM-FI System .275
Ignition Timing Control ................................
System .275
Exhaust Gas Recirculation ...................
(EGR) System . 275
Three Way Catalytic ...........................
Converter .275 ....................
Replacement Parts . 275
..
Three Way Catalytic Converter . 276
EmissionsTesting.........................277
T echnical Inf ormation
Technical Inf ormation
265

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 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 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.
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
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI System
Three Way Catalytic Converter
Exhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
Technical Inf ormation
275

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.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.
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.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
276
4-cylinder models
V6 models
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTERS

CONT INUED
Technical Descriptions......
DOT Tire Quality Grading . 271
.....
Emissions Control Systems . 274
Three Way Catalytic ...............................
Converter .276
.......................
Temperature Gauge .65
..............
Tether Anchorage Points . 48
..
Three Way Catalytic Converter . 276
..........................
Time, Setting the .143
....................................
Timing Belt .217
....................................
Tire Chains .234
.........
Tire, How to Change a Flat . 241
.................................
Tire Labeling .273
...............................................
Tires .228
..............................
Air Pressure .229
.........................
Checking Wear .230
..........................
Compact Spare .240
......
DOT Tire Quality Grading . 271
......................................
Inf lation .228
..................................
Inspection .230
...................................
Replacing .232
......................................
Rotating .231
...........................................
Snow .233
............................
Specif ications .270
...................
Tools, Tire Changing . 241Towing
.....................................
A Trailer .184
................
Emergency Wrecker . 262
Transmission Checking Fluid Level, ......................
Automatic . 211, 212
Checking Fluid Level, ...........................
Manual . 213, 214
..
Fluid Selection . 211, 213, 214, 215
..............
Identif ication Number . 267
.............
Shif ting the Automatic . 173
..................
Shif ting the Manual . 170
.....................................
Treadwear .271
.......................................
Trip Meter .65
................................................
Trunk .82
....................
Emergency Opener .83
.................................
Opening the .82
...................
Open Monitor Light . 60
....................................
Turn Signals .69 ..................................
Vanity Mirror .96
.................
Vehicle Capacity Load . 165
......................
Vehicle Dimensions .268
....
Vehicle Identif ication Number . 266
Vehicle Stability Assist (VSA) ....................................
System .182
...
VSA Activation Indicator . 60, 182
.........................
VSA Of f Switch .183
........
VSA System Indicator . 60, 182
.............................
Vehicle Storage .236
.................................................
VIN .266
..................................
Viscosity, Oil .204
...........
Voice Control System . 104, 116
............
WARNING, Explanation of . iii
.........
Warning Labels, Location of . 54
....................
Warranty Coverages .281
Unexpected, Taking Care of
...............................................
the .239
....
Unif orm Tire Quality Grading . 271
........................
Unleaded Gasoline .154 .......
Used Oil, How to Dispose of . 207
Index
U V
W
INDEX
VII