The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. The emissions control systems are
designed and certif ied to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent f or repairs. Using lower
quality parts may increase the
emissions f rom your vehicle.
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
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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 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 Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Three Way Catalytic Converter
Technical Inf ormation
355
CONT INUED
....................................
Accessories .236
ACCESSORY (Ignition Key .....................................
Position) .128
............
Accessory Power Sockets . 156
....................
Additives, Engine Oil . 288
.....................
Adjusting the Sound .175
Adjust Outside Temp. ...................................
Display . 73, 96
........
Advice For Pregnant Women . 17
.....................................
Airbag (SRS) .9
.....
Airbag, Additional Information . 23
...
Additional Safety Precautions . 35
.............................
Airbag Service .34
Check Airbag System ...................................
Message .83
How the Passenger Airbag Of f ......................
Indicator Works .33
How the Side Airbag Of f ......................
Indicator Works .32
..
How the SRS Indicator Works . 32
How Your Front Airbags .........................................
Work .26
...
How Your Side Airbags Work . 30How Your Side Curtain
..........................
Airbags Work .31
........................
SRS Components .23
............................
Air Conditioning .160
.........................................
Usage .162
.......................
Air Pressure, Tires .311
......................................
Alignment .312
.......................
Alcohol in Gasoline .230
Anti-lock Brakes (ABS) ...............................
Indicator . 65, 255
.......................................
Message .83
...................................
Operation .255
..............
Anti-thef t, Audio System . 201
Anti-thef t Steering Column ............................................
Lock .128
................................
Audio System .170
................
Automatic Lighting Off . 122
.
Automatic Seat Belt Tensionners . 21
..............
Automatic Transmission . 246
..........................
Capacity,Fluid .346
...............
Checking Fluid Level . 293
....
Sequential SportShif t Mode . 248
.......................................
Shif ting .246
.
Shif t Lever Position Indicator . 246
................
Shif t Lever Positions . 246
....................
Shif t Lock Release . 251......................
Auxiliary Input Jack .184
Battery Charging System ...........................
Indicator . 62, 332
.......................................
Message .84
............................
Jump Starting .327
..............................
Maintenance .316
............................
Specif ications .347
..............................
Bef ore Driving .229
..........................................
Belts, Seat .8
.........................
Beverage Holders .156
..................................
Booster Seats .52
Index
A
B
INDEX
I
