2007 HONDA S2000 air condition

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating f rom 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. 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.
In Canada, Honda vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive
crankcase ventilation valve routes
them from the 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.
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 .
Emissions Cont rols
The Clean Air Act
Crankcase Emissions Control
System
Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Technical Inf ormation
207

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
quality parts may increase the
emissions f rom your vehicle.
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 from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
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.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel 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 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 PartsIgnit ion T iming Cont rol Syst em
PGM-FI System Three Way Catalytic Converter
208

CONT INUED
....................................
Accessories .115
ACCESSORY (Ignition Key .......................................
Position) .62
...............
Accessory Power Socket . 78
....................
Additives, Engine Oil . 146
...............................
Airbag (SRS) . 9, 20
................
Air Conditioning System . 84
............................................
Usage .86
.......................
Air Pressure, Tires .165
.......................
Alcohol in Gasoline .110
AM/FM Stereo Radio .....................................
Reception .91
......................................
Antif reeze .149
Anti-lock Brakes (ABS) ...............................
Indicator . 45, 129
...................................
Operation .128
.
Anti-thef t Steering Column Lock . 62
............................
Anti-thef t System .61
......................................
Audio Panel .79
..................................
Audio System .88
...
Automatic Seat Belt Tensioners . 18
.............
Automatic Speed Control . 106 ........
Back-up Light Replacement . 159
Battery Charging System ...........................
Indicator . 46, 186
............................
Jump Starting .182
..............................
Maintenance .169
............................
Specif ications .203
..............................
Bef ore Driving .109
....................................
Belts,Seat .8,16
.............................
Beverage Holder .78
..................................
Booster Seats .38
............................................
Brakes .127
...........
Anti-lock System (ABS) . 128
.............
Break-in, New Linings . 110
...........................................
Fluid .154
.........................................
Parking .76
..........................
System Design .128
.................
System Indicator . 46, 188
........................
Wear Indicators .128
.............................
Braking System .127
.................
Break-in, New Vehicle . 110
..
Brightness Control, Instruments . 58
........................
Brights, Headlights .57 .........................
Bulb Replacement .155
..........................
Back-up Lights .159
.................................
Headlights .155
...........
Side Turn Signal Lights . 158
............................
Specif ications .203
....................
Turn Signal Lights . 157
..............................
Bulbs, Halogen .155
............................
Capacities Chart .202
.............
Carbon Monoxide Hazard . 41
....................
Cargo, How to Carry .117
.............
CAUTION, Explanation of . iii
.........................................
CD Care .101
...................................
CD Changer .100
.....
CD Changer Error Messages . 103
.........
CD Player Error Messages . 102
.........................................
CD Player .98
........................
Certif ication Label .200
.................................
Chains, Tires .168
....................
Changing a Flat Tire .175
Index
B
A
C
INDEX
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