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
qualitypartsmayincreasethe
emissions f rom your vehicle.
The emissions control systems are
covered by warranties separate f rom
the rest of your vehicle. Read your
warranty manual f or more inf orma-
tion.
The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our systems work
together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
come 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 exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
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
Exhaust Emissions Controls Replacement Parts
Emissions Cont rols
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
288
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..............
Panel Brightness Control . 73
........................
Park Gear Position . 195
...........................................
Parking . 198
...............................
Parking Brake . 100
Parking Brake and Brake
.................
System Indicator . 59, 269
.................................
Parking Lights . 72
..
Parking Over Things that Burn . 289
..................
Playing the Radio . 113, 130
........................
Playing a Disc . 122, 142
.........................
Playing a PC Card . 151
.............................
PGM-FI System . 288
.........
Pregnancy, Using Seat Belts . 16
.........
Protecting Adults and Teens . 11
...
Additional Safety Precautions . 17
.....
Advice f or Pregnant Women . 16
........................
Protecting Children . 33
.....................
General Guidelines . 33
...........................
Protecting Inf ants . 38
...........
Protecting Larger Children . 47
.............
Protecting Small Children . 39 ...................
Radiator Overheating . 265
.............
Radio/CD Sound System . 112
Radio/CD/PC Card Sound
........................................
System . 130
...........................
Readiness Codes . 268
Rear Lights, Bulb
.......................
Replacement . 239-241
..........................
Rear Seat, Folding . 93
............................
Rear View Mirror . 99
.................
Rear Window Def ogger . 74
...............
Reclining the Seat Backs . 91
.......
Recommended Shif t Speeds . 192
.............................
Reminder Lights . 59
................
Remote Audio Controls . 166
.......................
Remote Transmitter . 88
Replacement Inf ormation
..............
Dust and Pollen Filter . 242
................
Engine Oil and Filter . 226
..........................................
Fuses . 270
................................
Light Bulbs . 236
................
Maintenance Minder . 213
...........................................
Tires . 249
.............................
Wiper Blades . 243 Replacing Seat Belts Af ter a
............................................
Crash . 20
Reserve Tank, Engine ...............................
Coolant . 181, 228
...............................
Restraint, Child . 33
..................
Reverse Gear Position . 195
................................
Rotation, Tire . 248
..................................
Saf ety Belts . 8, 18
.........
Safety Defects, Reporting . 296
.................................
Saf ety Features . 7
...........................................
Airbags . 9
.......................................
Seat Belts . 8
.............
Saf ety Labels, Location of . 52
...............................
Saf ety Messages . ii
.....................................
Seat Belts . 8, 18
...............
Additional Information . 18
Automatic Seat Belt
...............................
Tensioners . 19
................
Lap/Shoulder Belt . 14, 19
........................
Maintenance . 20, 242
Reminder Light and
................................
Beeper . 18, 59
Index
R
S
P
VI
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