2000 HONDA S2000 air condition

Emissions Controls
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
form photochemical
"smog." Carbon
monoxide does not contribute to
smog creation, but it
is a poisonous
gas.
250 Technical Information
The Clean Air Act
The United States Clean Air Act*
sets standards for automobile
emissions.
It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to
do to maintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page
148.
* In Canada, Honda vehicles comply
with the
Canadian Motor Vehicle
Safety Standards
(CMVSS) for
Emissions valid at the time they are
manufactured.
Crankcase Emissions Control
System
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 from the
crankcase back to the intake
manifold.
They are then drawn into
the engine and burned.
Evaporative Emissions Control
System
As gasoline evaporates in the fuel
tank, an evaporative emissions
control canister filled with charcoal
adsorbs the vapor.
It is stored in this
canister while the engine is
off. After
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.

Exhaust Emissions Controls
The exhaust emissions controls
include four 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 from the crankcase and
evaporative emissions control
systems.
PGM-FI System
The PGM-FI System uses sequential
multiport fuel 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
fuel to inject under all operating
conditions.
Ignition Timing Control System
This system constantly adjusts the
ignition timing, reducing the amount
of
HC, CO and NOx produced.
Secondazy Air Injection System
During engine warm-up, air is
pumped into the exhaust to reduce
emissions when
the engine is cold.
Three Way Catalytic Converter
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
(COz), dinitrogen
(Nz), and water vapor.
Emissions Controls
Replacement Parts
The emissions control systems are
designed and certified 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 for repairs. Using
lower quality parts may increase the
emissions from your car.
The emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual for more informa­
tion.
Technical Information 251

A
Accessories Installation .................................. 122
Accessory
Power Socket ................ 81
ACCESSORY (Ignition Key
Position) ........................................
61
Adding
Brake Fluid ................................. 170
Clutch Fluid ................................ 171
Engine Coolant.. ......................... 161
Engine
Oil ................................... 157
Manual Transmission Fluid ..... 168
Windshield
Washer Fluid ......... 167
Additional Information About
Your
Seat Belts ........................ 33
Lap/Shoulder Belt.. ..................... 33
Seat Belt Maintenance ................ 34
Seat Belt System Components
... 33
Additional Information About
Your SRS ...................................
37
Additional Safety Precautions .... 38
How
the Automatic Seat Belt
Tensioners Work ..................... 37
How Your Airbags Work ............ 35
How the SRS Indicator
Works ........................................ 37
SRS Components ......................... 35
Additives, Engine Oil... .................. 158
Adjustments
Mirrors ..........................................
79
Seats .............................................. 68
Airbag (SRS) ...................................... 9
Air Cleaner Element.. ....................
l72
Air Conditioning ............................... 86
Maintenance ............................... 182
Usage ............................................. 86
Air Outlets (Vents) .......................... 88
Air Pressure,
Tires ........................ 185
Alarm, Anti-theft.. .......................... 113
Alcohol in Gasoline ........................ 248
Aluminum Wheels, Cleaning ........
206-
Antifreeze ....................................... 161
Anti-lock
Brakes (ABS)
Indicator Light ..................... 45, 138
Operation .................................... 136
Anti-theft Steering Column Lock
.. 60
Anti-theft System ........................... 113
Appearance Care ...........................
203
Audio Panel. ...................................... 82
Audio System ................................... 94
Index
Automatic Car Washes ................. 204
Automatic Speed Control.. .............. 55
IB
Back-up Lamp Replacement.. ....... 198
Battery Charging System
Indicator.. .......................... 44, 227
Jump Starting ............................. 220
Maintenance ............................... 177
Specifications ............................. 245
Before Driving ............................... 115
Belts, Seat ........................................... 8
Beverage Holder ..............................
81
Body Repair .................................... 210
Brakes ............................................. 136
Anti-lock System (ABS) ............ 137
Break-in, New Linings .............. 116
Fluid ............................................
170
Light, Burned-out ...................... 198
Parking .......................................... 80
System Indicator .......................... 44
Wear Indicators, Disc ............... 136
CONTINUED

Index
Brakes,ABS Certification Label ......................... 242
Vinyl ............................................ 207
Operation
.................................... 137 Chains ............................................. 191 Windows ..................................... 208
System
Indicator .................. 44, 139 Change Oil Climate Control System .................. 86
Braking System .............................. 136 Howto ......................................... 159 Clutch Fluid .................................... 171
Break-in, New Car ......................... 116 When to ....................................... 146 CO in the Exhaust ......................... 250
Brightness Control, Instruments ... 52 Changing a Flat Tire ..................... 213 Cold Weather, Starting in ............. 132
Brights, Headlights ......................... 51 Changing Engine Coolant.. ........... 163 Compact Spare Tire ....................... 212
Bulb Replacement... ....................... 192 Charging System Indicator .... 44, 227 Controls, Instruments and .............. 41
Back-up Lights ........................... 198 Check Engine Light ................ 45, 228
Covertible Top ................................. 71
Brake Lights ............................... 198 Checking
Closing the Convertible Top ...... 7 4
Headlights ..................................
195 Battery Condition ...................... 177 Convertible Top Cover. ............... 76
License Plate Lights .................. 200 Brake Fluid ................................. 170 Maintenance ................................. 77
Parking Lights ........................... 196 Clutch Fluid ................................ 171 Opening the Covertible Top ....... 71
Side Marker Lights ................... 198
Drive Belt.. .................................. 184 Coolant
Specifications .............................
245 Engine Coolant.. ......................... 120 Adding ......................................... 161
Turn Signal Lights ..................... 196 Engine Oil.. ................................. 119 Checking ..................................... 120
Bulbs, Halogen ............................... 194 Fuses ........................................... 232 Proper Solution .......................... 161
Manual Transmission Fluid ..... 168 Temperature Gauge .................... 47
c Checklist, Before Driving ............. 115 Corrosion Protection ..................... 208
Cleaner, Air .................................... 172 Crankcase Emission Control
Cables, Jump Starting With ..........
220 Cleaning .......................................... 203 System ......................................... 250
Capacities Chart. ............................ 244
Aluminum Wheels ..................... 206 Cruise Control Operation ............... 55
Carbon Monoxide Hazard .............. 39 Exterior ....................................... 204 Customer Relations
Cargo, Carrying .............................
124 Interior ........................................ 207 Information ................................. 254
CAUTION, Explanation of ............... ii Leather ........................................ 207
CD Changer. ................................... 107 Seat Belts .................................... 207
II