2004 Acura RSX air condition

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The 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. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas.
In Canada, Acura 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 Crank-
case 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 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
.
157
Emissions Cont rols
T echnical Inf ormation
Crankcase Emissions Control
System
Evaporative Emissions Control
System
The Clean Air Act
225

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 .
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 from 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 Fuel Control.
The Engine Control Module (ECM)
or the Powertrain Control Module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much f uel to inject under all operat-
ing conditions.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
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 Acura replacement parts or
their equivalent f or repairs. Using
lower quality parts may increase the
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 inf orma-
tion.
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
T echnical Inf ormation
Onboard Ref ueling Vapor
Recovery
Exhaust Emissions Controls Replacement PartsPGM-FI Syst em
Ignit ion T iming Cont rol Syst emThree Way Catalytic Converter
226

CONT INUED
....................................
Accessories .127
ACCESSORY (Ignition Key .......................................
Position) .66
..............
Accessory Power Sockets . 85
....................
Additives, Engine Oil . 165
.............................
Airbag (SRS) .10, 22
...
Airbags, Additional Information . 22
...
Additional Safety Precautions . 28
.............................
Airbag Service .28
How the Side Airbag Cutof f ......................
Indicator Works .27
..
How the SRS Indicator Works . 26
How Your Front Airbags .........................................
Work .22
...
How Your Side Airbags Work . 25
........................
SRS Components .22
................
Air Conditioning System . 88
.......................
Air Pressure, Tires .184
......................................
Antif reeze .168
Anti-lock Brakes (ABS) ...............................
Indicator .51, 147
...................................
Operation .147
Anti-thef t Steering Column ..............................................
Lock .65 ..................................
Audio System .92
...
Automatic Seat Belt Tensioners . 20
.............
Automatic Speed Control . 115
..............
Automatic Transmission . 139
..........................
Capacity,Fluid .220
...............
Checking Fluid Level . 169
.......................................
Shif ting .139
.
Shif t Lever Position Indicator . 139
................
Shif t Lever Positions . 139
....................
Shif t Lock Release . 144
Battery Charging System ...........................
Indicator .51, 205
............................
Jump Starting .200
..............................
Maintenance .188
............................
Specif ications .221
..............................
Bef ore Driving .119
....................................
Belts,Seat .8,19
...........................
Beverage Holders .85
..................................
Booster Seats .42
Brakes ...........
Anti-lock System (ABS) . 147
.............
Break-in, New Linings . 121....................
Bulb Replacement .174
...........................................
Fluid .171
.................
System Indicator . 51,208
........................
Wear Indicators .146
.............................
Braking System .146
.................
Break-in, New Vehicle . 121
..
Brightness Control, Instruments . 61
........................
Brights, Headlights .60
Bulb Replacement ..........................
Back-up Lights .178
..............................
Brake Lights .178
................
Front Parking Lights . 177
.........
Front Turn Signal Lights . 176
.................................
Headlights .174
.........
High-mount Brake Light . 178
.........
Rear Side Marker Lights . 178
............................
Specif ications .221
..............................
Bulbs, Halogen .174
Index
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B
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