1998 HONDA PRELUDE ignition

Low Oil Pressure Indicator

This indicator should light when the
ignition switch is ON (II), and go outafter the engine starts. It should
never come on when the engine is
running. If it starts flashing, it indicates that the oil pressure
dropped very low for a moment, then
recovered. If the indicator stays on
with the engine running, it shows that the engine has lost oil pressureand serious engine damage is
possible. In either case, you should
take immediate action.
Running the engine with low oil
pressure can cause serious mechanical damage almost immediately. Turn off
the engine as soon as you can safely get
the vehicle stopped.

1. Safely pull off the road and shut off the engine. Turn on the hazard
warning indicators.
2. Let the vehicle sit for a minute. Open the hood and check the oil
level (see page 123). Although oil
level and oil pressure are not directly connected, an engine that
is very low on oil can lose pressure
during cornering and other driving

maneuvers.

3. If necessary, add oil to bring the level back to the full mark on thedipstick (see page 173). 4. Start the engine and watch the oil
pressure indicator. If the lightdoes not go out within ten seconds,
turn off the engine. There is a
mechanical problem that needs to
be repaired before you can continue driving. (See Towing on

page 250.)
Taking Care of the Unexpected
NOTICE

LOW OIL PRESSURE INDICATOR
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Charging System Indicator

CHARGING SYSTEM INDICATOR
This indicator should come on when the ignition switch is ON (II), and goout after the engine starts. If it
comes on brightly when the engine
is running, it indicates that the
charging system has stopped
charging the battery. Immediately turn off all electrical
accessories: radio, heater, A/C, rear
defogger, cruise control, etc. Try not
to use other electrically-operated controls such as the power windows.
Keep the engine running and take
extra care not to stall it. Starting the
engine will discharge the battery
rapidly. By eliminating as much of the
electrical load as possible, you can
drive several miles (kilometers)
before the battery is too discharged to keep the engine running. Drive to
a service station or garage where
you can get technical assistance.
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Malfunction Indicator Lamp

This indicator comes on for a few seconds when yon turn the ignition
switch ON (II). If it comes on at any
other time, it indicates one of the
engine's emissions control systems
may have a problem. Even though
you may feel no difference in your
vehicle's performance, it can reduce
your fuel economy and cause your
vehicle to put out excessive emissions. Continued operation may
cause serious damage. If you have recently refueled your
vehicle, the cause of this indicator coming on could be a loose or
missing fuel fill cap. Check the cap
and tighten it until it clicks. Replace
the fuel fill cap if it is missing.
Tightening the cap will not make the indicator turn off immediately; it
takes three driving trips.
If the indicator remains on past threedriving trips, or the fuel cap was not
loose or missing, have the vehicle
checked by the dealer as soon as
possible. Drive moderately until the dealer has inspected the problem.
Avoid full-throttle acceleration and driving at high speed.
You should also have the dealer inspect your vehicle if this indicator
comes on repeatedly, even though it
may turn off as you continue driving.If you keep driving with the
malfunction indicator lamp on, you can
damage your vehicle's emissionscontrols and engine. Those repairs may
not be covered by your vehicle 's warranties.
Taking Care of the Unexpected
MALFUNCTION INDICATOR LAMP


NOTICE
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Brake System Indicator

The Brake System indicator light comes on when you turn the ignitionON (II). If the parking brake is notset, it goes off after you start the
engine. If the parking brake is set, it
goes off when you fully release the
parking brake with the engine
running.
If it comes on at any other time, it
indicates a problem with the vehicle's
brake system. In most cases, the problem is a low fluid level in the brake fluid reservoir. Press lightly on
the brake pedal to see if it feels
normal. If it does, check the brake
fluid level the next time you stop at a service station (see page 185). If the
fluid level is low, take the vehicle to
your dealer and have the brake system inspected for leaks or worn
brake pads.
However, if the brake pedal does not
feel normal, you should take
immediate action. Because of the
brake system's dual-circuit design, a
problem in one part of the system
will still give you braking at two
wheels. You will feel the brake pedal go down much farther before the
vehicle begins to slow down, and you will have to press harder on thepedal. The distance needed to stop
will be much longer.
Slow down by shifting to a lower
gear, and pull to the side of the road
when it is safe. Because of the longer distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed, and repaired as

soon as possible.

If you must drive the vehicle a short
distance in this condition, drive
slowly and cautiously.
Taking Care of the Unexpected

BRAKE SYSTEM INDICATOR

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Fuses

Checking and Replacing Fuses

If something electrical in your
vehicle stops working, the first thing you should check for is a blown fuse. Determine from the chart on pages 248 and 249, or the diagram on the
fuse box lid, which fuse or fuses control that component. Check those
fuses first, but check all the fuses
before deciding that a blown fuse is not the cause. Replace any blown
fuses and check the component's
operation.

1. Turn the ignition switch to LOCK (0). Make sure the headlights and
all other accessories are off.
2. Remove the cover from the fuse
box.
3. Check each of the large fuses in
the under-hood fuse box by
looking through the top at the wireinside. Removing these fuses
requires a Phillips-head screw-driver. 4. Check the smaller fuses in the
under-hood fuse box and all the
fuses in the interior fuse box by
pulling out each fuse with the fuse
puller provided in the interior fuse
box.
Taking Care of the Unexpected
FUSE

BLOWN
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Technical Information

The diagrams in this section give you the dimensions and capacities of
your Honda, and the locations of the identification numbers. The expla-
nations of several electronic and mechanical systems on your Honda
are for the more technically-oriented
owner. Identification Numbers................. 252
Specifications................................. 254
Tire Information............................ 256 Tire Size Designation................ 256
Wheel Size Designation............ 256
Tire Speed Ratings.................... 256 Tire Pressure Adjustment For High Speed Driving........ 257
DOT Tire Quality Grading....... 257 Treadwear.............................. 257
Traction.................................. 258
Temperature.......................... 258 Oxygenated Fuels.......................... 259
Driving in Foreign Countries....... 260
Emissions Controls........................ 261
The Clean Air Act...................... 261Crankcase Emissions Control System..................................... 261
Evaporative Emissions Control System..................................... 261
Exhaust Emissions Controls.... 262 PGM-FI System..................... 262
Ignition Timing ControlSystem................................. 262
Exhaust Gas Recirculation (EGR) System.................... 262
Three Way Catalytic
Converter............................ 262

Replacement Parts..................... 262
Three Way Catalytic Converter... 263

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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
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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
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