2002 HONDA S2000 Owners Manual

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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.
Scheduled maintenance is on page
.
The burning of gasoline in your car’s
engine produces several byproducts.
Some of these are carbon monoxide
(CO), oxides of nitrogen (NOx) and
hydrocarbons (HC). Gasoline
evaporating from 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.
Your car has a Positive Crankcase
Ventilation System. This keeps
gasses that build up in the engine’s
crankcase from going into the
atmosphere. The Positive Crankcase
Ventilation valve routes them fromthe 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.
In Canada, Honda vehicles comply
with the Canadian Motor Vehicle
Saf ety Standards (CMVSS) f or
Emissions valid at the time they are
manuf actured. 154
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
T echnical Inf ormation
Emissions Cont rols
258

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.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The emissions control systems are
covered by warranties separate f rom
the rest of your car. Read your
warranty manual f or more inf orma-
tion.
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
lower quality parts may increase the
emissions f rom your car.
2
2
Exhaust Emissions Controls
Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Secondary A ir Inject ion Syst em
Three Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation 259

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.
T echnical Inf ormation
Three Way Catalytic Converter
260
TTHHRREEEEWWAAYYCCAATTAALLYYTTIICCCCOONNVVEERRTTEERR

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 for re-testing
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 on Neutral.
Increase the engine speed to 2,000
rpm and hold it there until the
temperature gauge rises to at least
1/4of thescale(approximately3
minutes).
CONT INUED
T echnical Inf ormation
St at e Emissions T est ing
T esting of Readiness Codes
261

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.
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 5
th. Do not use the cruise control.
When traffic allows, drive for 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 f acility determines the
readiness codes are still not set, see
your Honda dealer.
St at e Emissions T est ing
T echnical Inf ormation
262

Customer Relations................................
Inf ormation . 264
....................
Warranty Coverages . 265
Reporting Saf ety Def ects
..........................
(U.S. Vehicles) . 266
.....................
Authorized Manuals . 267
Warranty and Customer Relations
Warrant y and Cust omer Relat ions 263

Honda dealership personnel are
trained prof essionals. They should
be able to answer all your questions.
If you encounter a problem that your
dealership does not solve to your
satisf action, please discuss it with
the dealership’s management. The
Service Manager or General
Manager can help. Almost all
problems are solved in this way.
If you are dissatisf ied with the
decision made by the dealership’s
management, contact your Honda
Customer Relations Of f ice.U.S. Owners: In Puerto Rico and the U.S. Virgin
Islands:
When you call or write, please give
us this inf ormation:
Vehicle Identif ication Number
(see page )
Name and address of the dealer
who services your vehicle
Date of purchase
Mileage on your vehicle
Your name, address, and tele-
phone number
A detailed description of the
problem
Name of the dealer who sold the
vehicle to you
Canadian Owners:
250
Cust omer Relat ions Inf ormat ion
Warrant y and Cust omer Relat ions
264 CUSTOMER RELATIONS
RELATIONS AVEC LA CLIENTÉLE
Bella International
P.O. Box 190816
San Juan, Puerto Rico 00919-0816
(787) 250-4318
American Honda Motor Co.
Honda Consumer Affairs
Department
Mail stop 500-2N-7D 1919 Torrance Blvd
Torrance, CA 90501-2746
telephone: (800) 993-1009
Honda Canada Inc.
715 Milner Avenue
Toronto, ON
M1B 2K8
Tel: 1-888-9-HONDA-9
Fax: Toll-free 1-877-939-0909 Toronto (416) 287-4776

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a seat
belt that f ails to f unction properly is
covered f or the usef ul lif e of the
vehicle.
provides
coverageforaslongasthepur-
chaser of the muf f ler owns the car.
all exterior body panels are
covered f or rust-through f rom the
inside f or the specif ied time period
with no mileage limit.
covers
your new vehicle, except f or the
battery, emissions control systems,
and accessories, against def ects in
materials and workmanship.
these two
warranties cover your car’s emis-
sions control systems. Time, mileage,
and coverage are conditional. Please
read the warranty manual for exact
inf ormation.
this warranty gives up
to 100 percent credit toward a
replacement battery.
Your new Honda is covered by these
warranties:
Genuine Honda Accessories are
covered under this warranty. Time
and mileage limits depend on the
type of accessory and other f actors.
Please read your warranty manual
f or details.covers all genuine
Honda replacement parts against
defects in materials and workman-
ship. provides prorated
coverage f or a replacement battery
purchased f rom a Honda dealer.
Please ref er to the 2002 Warranty
Manual that came with your car.
Restrictions and exclusions apply to
all these warranties. Please read the
2002 Honda Warranty Inf ormation
booklet that came with your car f or
precise inf ormation on warranty
coverages. Your Honda’s original
tires are covered by their
manuf acturer. Tire warranty inf or-
mation is in a separate booklet.Seat Belt Limited Warranty
Replacement Muf f ler L if et imeLimited Warranty
Rust Perf orat ion L imit ed Warrant y
New Car Limited Warranty
Emissions Cont rol Syst ems Def ect sWarrant y and Emissions
Perf ormance Warranty
Original Equipment Bat t ery L imit edWarranty Accessory Limited Warranty
Replacement Part s L imit edWarranty Replacement Bat t ery L imit ed
WarrantyU.S. Owners
Canadian Owners
Warranty Coverages
Warrant y and Cust omer Relat ions265