catalytic converter HONDA S2000 2003 1.G Owners Manual

This shows how much f uel you have.
It is most accurate when the car is on
level ground. It may show slightly
more or less than the actual amount
whenyouaredrivingoncurvyor
hilly roads.The odometer shows the total dis-
tance your car has been driven. It
displays in miles and kilometers.
It is illegal under U.S. f ederal law and
Canadian provincial regulations to
disconnect, reset, or alter the
odometer with the intent to change
the number of miles or kilometers
indicated.
Gauges
Inst rument s and Cont rols
Fuel Gauge
Odometer
50
TRIP METER FUEL GAUGE
TRIP BUTTON
ODOMETER SELECT BUTTON
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.

Place any packages, valuables, etc.,
in the trunk or take them with you. Turn of f the lights.
Always use the parking brake when
you park your car. The indicator on
the instrument panel shows that the
parking brake is not f ully released; it
does not indicate that the parking
brakeisfirmlyset.Makesurethe
parking brake is set f irmly or your
car may roll if it is parked on an
incline. If the car is f acing uphill, turn the
f ront wheels away f rom the curb and
put the transmission in f irst gear.
If the car is f acing downhill, turn the
f ront wheels toward the curb and put
the transmission in reverse gear.
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. Make sure the convertible top and
the windows are closed.
Lockthedoorswiththekeyorthe
remote transmitter.
Never park over dry leaves, tall
grass, or other f lammable
materials. The three way catalytic
converter gets very hot, and could
cause these materials to catch on
fire.
Parking T ips
Parking
Driving139

Thediagramsinthissectiongive
you the dimensions and capacities of
your Honda, 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 . 248
................................
Specif ications .250
DOT Tire Quality Grading ......................
(U.S. Vehicles) .252
.................................
Treadwear .252
......................................
Traction .252
.............................
Temperature .253
...........................
Tire Inf ormation .254 .........................
Oxygenated Fuels .255
......
Driving in Foreign Countries . 256
.......................
Emissions Controls .257
.....................
The Clean Air Act .257
Crankcase Emissions Control ....................................
System .257
Evaporative Emissions Control ....................................
System .257
...
Exhaust Emissions Controls . 258
....................
PGM-FI System .258
Ignition Timing Control ................................
System .258
Secondary Air Injection ................................
System .258
Three Way Catalytic ...........................
Converter .258
....................
Replacement Parts . 258
..
Three Way Catalytic Converter . 259
..............
State Emissions Testing . 260
T echnical Inf ormat ion
T echnical Inf ormation247

If you are planning to take your
Honda outside the U.S. or Canada,
contact the tourist bureaus in the
areas you will be traveling in to f ind
out about the availability of unleaded
gasoline with the proper octane
rating.
If unleaded gasoline is not available,
be aware that using leaded gasoline
in your Honda will af f ect perf or-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. and
Canadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into
compliance will require the replace-
ment of several components, such as
theoxygensensorsandthethree
way catalytic converter. These re-
placements are not covered under
warranty.
Driving in Foreign Countries
T echnical Inf ormation256

This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Secondary
Air Injection System, and Three Way
Catalytic Converter. These four
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. During engine warm-up, air is
pumped into the exhaust to reduce
emissions when the engine is cold.
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 ), dinitrogen
(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
Genuine Honda replacement parts or
their equivalent f or repairs. Using
lowerqualitypartsmayincreasethe
emissions f rom your car.
The PGM-FI System uses sequential
multiport f uel injection. It has three
subsystems: Air Intake, Engine
Control, and Fuel Control. The
Engine Control Module (ECM) 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 emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual f or more informa-
tion.
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 .
2
2
Exhaust Emissions Controls Replacement Parts
Onboard Ref ueling Vapor
Recovery
PGM-FI Syst em Ignit ion T iming Cont rol Syst em
Secondary A ir Inject ion Syst emThree Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation258

Keep the engine tuned-up.
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.
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.
Park your car away f rom 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 car’s three way catalytic
converter. Have your car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
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.
Three Way Catalytic Converter
T echnical Inf ormation259
THREE WAY CATALYTIC CONVERTER

CONT INUED
...........................
Storing Your Car .206
.......................................
Stuck Car .243
Supplemental Restraint System ......................................
Servicing .39
.........................
SRS Indicator .38 ,47
...............
Tensioners, Seat Belts . 34
.....................................
Tachometer .49
......
Taillights, Changing Bulbs in . 202
.
Taking Care of the Unexpected . 217
Technical Descriptions ......
DOT Tire Quality Grading . 252
.....
Emissions Control Systems . 257
.....................
Oxygenated Fuels .255
Three Way Catalytic ...............................
Converter .259
.......................
Temperature Gauge .49
...................
Tensioners, Seat Belts . 34
..
Three Way Catalytic Converter . 259
....................................
Tire Chains .195
.........
Tire, How to Change a Flat . 219
...........................
Tire Inf ormation .254
...............................................
Tires .189
..............................
Air Pressure .189 ...................................
Balancing .192
.........................
Checking Wear .191
.................
Compact Spare Tire . 218
......
DOT Tire Quality Grading . 252
......................................
Inf lation .189
..................................
Inspection .191
...................................
Replacing .193
......................................
Rotating .192
...........................................
Snow .195
............................
Specif ications .251
...................
Tools, Tire Changing . 219
Towing ......................
A Trailer, Do Not .145
................
Emergency Wrecker . 245
..................
Trailer, Do Not Tow a . 145
Transmission Checking Fluid Level, 6-speed ..........
Manual Transmission . 172
...........................
Fluid Selection .172
..............
Identif ication Number . 248
Shif ting the 6-speed Manual .........................
Transmission .137
.....................................
Treadwear .252
.......................................
Trip Meter .51
................................................
Trunk .66
........
Emergency Trunk Opener . 67.................................
Opening the .66
...................
Open Monitor Light . 47
....................................
Turn Signals .55
......................
Vehicle Dimensions .250
....
Vehicle Identif ication Number . 248
.............................
Vehicle Storage .206
........................................
Ventilation .88
.................................................
VIN .248
...............................
Vinyl Cleaning .212
..................................
Viscosity, Oil .162
.....................
Underside, Cleaning .213
Unexpected, Taking Care ..........................................
of the .217
....
Unif orm Tire Quality Grading . 252
........................
Unleaded Gasoline .120
.....................
Upholstery Cleaning .211
.......
Used Oil, How to Dispose of . 164
Index
T U
V
VII