1998 HONDA PRELUDE engine

Specifications

* 1 : Including the coolant in the reserve tank and that remaining in the

engine.

Reserve tank capacity:

0.16 US gal (0.6 l ,0.13 Imp gal)

* 2 : Type SH

* 3 : Except Type SH
* 4 : Excluding the oil remaining in the engine.

Technical Information
page 190 .ProCarManuals.comMain Menu Table of Contents s t

Emissions Controls

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 from 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 form photochemical "smog." Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas. The Clean Air Act
The United States Clean Air Act* sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to do to maintain them. This section summarizes how
the emissions controls work.Scheduled maintenance is on page 164.
* In Canada, Honda vehicles comply
with the Canadian Motor Vehicle Safety Standards (CMVSS) forEmissions valid at the time they are
manufactured. Crankcase Emissions Control
System
Your vehicle has a Positive Crankcase Ventilation System. This
keeps gasses that build up in the engine's crankcase from going into
the atmosphere. The Positive Crank- case Ventilation valve routes them
from the crankcase back to the intake manifold. They are thendrawn into the engine and burned.
Evaporative Emissions Control
System
As gasoline evaporates in the fuel tank, an evaporative emissions
control canister filled with charcoaladsorbs the vapor. It is stored in this
canister while the engine is off. After
the engine is started and warmed up,
the vapor is drawn into the engine and burned during driving.

Technical InformationProCarManuals.comMain Menu Table of Contents s t

Emissions Controls

Exhaust Emissions Controls
The exhaust emissions controls include four systems: PGM-FI,
Ignition Timing Control, ExhaustGas 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 from the crankcase and
evaporative emissions control
systems.

PGM-FI System

The PGM-FI System uses sequential multiport fuel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM) uses various sensors to determine
how much air is going into the engine. It then controls how much
fuel to inject under all operating conditions. Ignition Timing Control System
This system constantly adjusts the ignition timing, reducing the amount
of HC, CO and NOx produced.
Exhaust Gas Recirculation (EGR)
System

The Exhaust Gas Recirculation (EGR) system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding exhaust
gas to the air/fuel mixture reduces the amount of NOx produced when
the fuel is burned.
Three Way Catalytic Converter
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 (C02), dinitrogen
(
N2), and water vapor.

Replacement Parts

The emissions control systems are designed and certified 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 newGenuine Honda replacement parts or
their equivalent for repairs. Using
lower quality parts may increase the emissions from your vehicle.
The emissions control systems are covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.

Technical Information
ProCarManuals.comMain Menu Table of Contents s t

Three Way Catalytic Converter
The three way catalytic converter contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without affecting the metals.
The catalytic converter is referred to as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Honda part or its equivalent.
The three way catalytic converter must operate at a high temperature
for the chemical reactions to take place. It can set on fire any com-
bustible materials that come near it. Park your vehicle away from high
grass, dry leaves, or other flamma-
bles.
A defective three way catalytic
converter contributes to air pollution,
and can impair your engine's per-
formance. Follow these guidelines to
protect your vehicle's three way
catalytic converter. Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the catalyst metals, making the three
way catalytic converter ineffective. Keep the engine tuned-up. Have your vehicle diagnosed and
repaired if it is misfiring, back-
firing, stalling, or otherwise not
running properly.

Technical Information

THREE WAY CATALYTIC CONVERTERProCarManuals.comMain Menu Table of Contents s t

Authorized Manuals

These Publications cannot be returned for credit without receiving advance authorization within 14
days of delivery. On returns, a restocking fee may be applied against the original order.
Service Manual:
This manual covers maintenance and recommended procedures for repair to engine and chassis components.It is written for the Journeyman mechanic, but is simpleenough for most mechanically-inclined owners to under-

stand.

Electrical Troubleshooting Manual:
This manual complements the Service Manual by providing in-depth troubleshooting information for eachelectrical circuit in your vehicle.
Body Repair Manual:
This manual describes the procedures involved in the replacement of damaged body parts.
P.O. BOX 07280 DETROIT, MICHIGAN 48207 1-800-782-4356

NOTE: Dealers and Companies please provide dealer or company name,
and also the name of the person to whose attention the shipment should be sent. For purchases outside U.S.A. please write to the address shown

below for a quotation.ProCarManuals.comMain Menu Table of Contents s t

Index
Accessories and Modifications.... 126 Accessories................................. 126
Additional Safety Precautions.. 127Modifications............................. 127
ACCESSORY (Ignition Key Position)........................................ 71
Accessory Power Socket................ 88
Active Torque Transfer System
(ATTS)
Indicator................................ 54, 149
Operation.................................... 149
Adding Automatic Transmission
Fluid........................................ 183
Brake Fluid................................. 185
Clutch Fluid................................ 186
Engine Coolant........................... 177
Engine Oil...................................173
Manual Transmission Fluid ..... 184
Power Steering Fluid................. 186
Windshield Washer Fluid......... 182
Additional Information About Your Seat Belts........................ 40
Lap/Shoulder Belt....................... 40
Seat Belt Maintenance................ 42

Seat Belt System Components... 40

Additional Information About

YourSRS................................... 43

Additional Safety Precautions.... 46
How Your Airbags Work............ 43

How Your SRS Indicator Light
Works........................................45

SRS Components......................... 43

Additives, Engine Oil..................... 174

Adjustments
Headlights.................................. 205

Head Restraints........................... 77
Mirrors..........................................
83

Seats.............................................. 7 5

Steerin
g Wheel............................ 64

Airbag (SRS).................................... 43

Air Cleaner Element...................... 187
Air Conditioning............................... 92 Maintenance............................... 195

Usage.............................................92

Air Outlets (Vents).......................... 94
Air Pressure, Tires........................ 197 High Speed Driving................... 257
Normal Driving.......................... 198
Alcohol in Gasoline........................ 259 Antifreeze....................................... 177
Anti-lock Brakes (ABS) Indicator Eight..................... 54, 148Operation.................................... 146
Anti-theft Steering Column

Lock............................................... 71

Appearance Care........................... 219 Ashtrays (Optional)......................... 89
Audio System................................. 100
Automatic Speed Control................ 65
Automatic Transmission............... 136
Capacity, Fluid........................... 254
Checking Fluid Level................ 183
Sequential SportShift Mode..... 139
Shifting........................................ 137
Shift Lever Position Indicator.. 136
Shift Lever Positions................. 137
Shift Lock Release..................... 143
CONTINUEDProCarManuals.comMain Menu s t

Index

Battery Charging SystemIndicator............................ 53, 241
Jump Starting............................. 236 Maintenance............................... 190
Specifications............................. 255
Before Driving............................... 119
Belts, Seat........................................... 4
Beverage Holder.............................. 86
Body Repair.................................... 225

Brakes
Anti-lock System (ABS)............ 146
Break-in, New Linings .............. 120

Fluid............................................ 185
Light, Burned-out...................... 211

Parking.......................................... 84

System Indicator.......................... 53
Wear Indicators......................... 145
Brakes, ABS Operation.................................... 146
System Indicator................. 54, 148
Braking System.............................. 145
Break-in, New Car......................... 120
Brightness Control, Instruments... 61 Brights, Headlights......................... 60
Bulb Replacement
Back-up Lights........................... 211
Brake Lights............................... 211
Ceiling Lights............................. 215Courtesy Lights......................... 215
Front Parking Lights................. 208
Front Side Marker Lights......... 209
Headlights.................................. 206
High-mount Brake Light.......... 213
License Plate Light.................... 214
Rear Side Marker Lights.......... 211
Specifications............................. 255
Trunk Light................................ 216 Turn Signal Lights..................... 210
Bulbs, Halogen............................... 206
Cables, Jump Starting With.......... 236
Capacities Chart............................. 254

Carbon Monoxide Hazard.............. 47
Cargo, Loading...............................
128

Cassette Playe r

Care.............................................
116

Operation....................................

113

CAUTION, Explanatio n
of...............

ii

CD Changer...................................
.
109
CD Player........................................ 109

Certification Label......................... 252

Chains............................................. 202

Change Oil How to.........................................175

When to....................................... 164

Changing a Flat Tire ..................... 229
Changing Engine Coolant............. 179
Charging System Indicator .... 53, 241 Checking Automatic Transmission

Fluid........................................ 183

Battery Condition...................... 190

Brake Fluid................................. 185
Clutch Fluid................................186
Drive Belts.................................. 196
Engine Coolant........................... 124

Engine Oil................................... 123

Fuses........................................... 246
Manual Transmission Fluid ..... 184
Power Steering Fluid................. 186
Checklist, Before Driving............. 132
Child Safety......................................19
Cleaner, Air.................................... 187ProCarManuals.comMain Menu s t

Index

Cleaning
Aluminum Wheels..................... 221Carpeting.................................... 222
Exterior....................................... 220
Fabric.......................................... 222
Interior........................................ 222
Seat Belts....................................223
Vinyl............................................ 222
Windows..................................... 223
Clock, Setting the ............................ 85
Clutch Fluid.................................... 186
Coin Box........................................... 88
CO in the Exhaust......................... 261
Cold Weather, Starting in............. 133
Compact Spare............................... 228
Consumer Information*................ 266
Controls, Instruments and.............. 49
Coolant
Adding......................................... 177
Checking..................................... 124

Proper Solution.......................... 177

Replacing.................................... 179

Temperature Gauge.................... 57
Corrosion Protection..................... 224

Courtesy Lights............................... 90
Crankcase Emission Control

System......................................... 261

Cruise Control Operation............... 65

Customer Relations Office........... 266

DANGER, Explanation of................. ii
Dashboard........................................ 50
Daytime Running Lights................. 60
Dead Battery, What to Do............ 236
Defects, Reporting Safety............. 270
Defog and Defrost........................... 98
Defogger, Rear Window................. 63
DEXRON ®
III Automatic
Transmission Fluid.................... 183
Dimensions..................................... 254
Dimming the Headlights ................ 60
Dipstick Automatic Transmission........... 183
Engine Oil................................... 123
Directional Signals........................... 61
Disabled, Towing Your Car If...... 250
Disc Brake Wear Indicators......... 145
Disposal of Used Oil...................... 176 Doors
Locking and Unlocking............... 72
Power Door Locks....................... 72
DOT Tire Quality Grading........... 257
Downshifting, 5-speed Manual Transmission.............................. 134
Drive Belts...................................... 190
Driving............................................ 131
Economy..................................... 125
In Bad Weather.......................... 150
In Foreign Countries................. 260
Economy, Fuel............................... 125
Emergencies on the Road............. 227 Battery, Jump Starting.............. 236
Brake System Indicator............ 243Changing a Flat Tire................. 229
Charging System Indicator ...... 241
Checking the Fuses................... 245
Low Oil Pressure Indicator...... 240
Malfunction Indicator Lamp.... 242
Manually Closing Moonroof.... 243
Overheated Engine................... 238 CONTINUEDProCarManuals.comMain Menu s t