The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation 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 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 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 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 ), dinitrogen
(N ), and water vapor.
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.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
T echnical Inf ormation283
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..................
Childproof Door Locks . 85
.......................................
Child Seats . 34
...........
Lower Anchorage Points . 46
..........
Tether Anchorage Points . 50
..............
Climate Control Sensors . 121
.........................
Clock, Setting the . 153
...................................
Clutch Fluid . 226
........................
CO in the Exhaust . 282
............
Cold Weather, Starting in . 179
..............................
Compact Spare . 248
.................
Console Compartment . 107
...............
Consumer Inf ormation . 288
.............
Controls, Instruments and . 59
Coolant
........................................
Adding . 219
....................................
Checking . 169
.........................
Proper Solution . 219
...................
Temperature Gauge . 69
Crankcase Emissions Control ........................................
System . 282
............
Cruise Control Operation . 155
.............
Customer Service Of f ice . 288
................
DANGER, Explanation of . ii .......................................
Dashboard . 60
................
Daytime Running Lights . 76
............
Def ects, Reporting Saf ety . 290
................
Def ogger, Rear Window . 77
....................................
Dimensions . 274
...............
Dimming the Headlights . 74
Dipstick
.
Automatic Transmission . 221, 222
..................................
Engine Oil . 168
..........................
Directional Signals . 74
........
Disc Brake Wear Indicators . 188
.....................
Disposal of Used Oil . 217
Doors
..............
Locking and Unlocking . 83
..........
DOT Tire Quality Grading . 277
Downshif ting, 5-speed Manual
.............................
Transmission . 180
...........
Driver and Passenger Safety . 5
...........................................
Driving . 177
....................................
Economy . 170
................
In Foreign Countries . 281
..........
Dual Temperature Control . 119
..................
Dust and Pollen Filter . 235 ..............................
Economy, Fuel . 170
............
Emergencies on the Road . 247
.............
Battery, Jump Starting . 255
...........
Brake System Indicator . 262
................
Changing a Flat Tire . 249
.....
Charging System Indicator . 260
..................
Checking the Fuses . 265
.....
Low Oil Pressure Indicator . 259
...
Malf unction Indicator Lamp . 260
...
Manually Closing Moonroof . 263
..................
Overheated Engine . 257
.........................
Emergency Brake . 103
......................
Emergency Flashers . 76
......................
Emergency Towing . 264
.......................
Emissions Controls . 282Engine
....
Coolant Temperature Gauge . 69
Malf unction Indicator
................................
Lamp . 62, 260
........
Oil Pressure Indicator . 62, 259
..............
Oil, What Kind to Use . 214
...............................
Overheating . 257
............................
Specif ications . 274
....................
Speed Limiter . 181, 184
Index
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