sensor HONDA PRELUDE 2000 Owner's Manual (in English)

Page 48 of 293

Additiona
l Informatio n Abou t You r SR S

SR S Component s

Your Supplemental Restraint System (SRS) includes: Two front airbags. The driver's
airbag is stored in the center of
the steering wheel; the front
passenger's airbag is stored in the dashboard. Both are marked "SRS
AIRBAG." Sensors that can detect a
moderate to severe frontal
collision. A sophisticated electronic system
that continually monitors thesensors, control unit, the airbag
activators, and all related wiring
when the ignition is ON (II). An indicator light on the
instrument panel that alerts you to
a possible problem with thesystem (see page 47). Emergency backup power in case
your car's electrical system is disconnected in a crash. Ho
w You r Airbag s Wor k
If you ever have a moderate to severe frontal collision, the sensors
will detect rapid deceleration and signal the control unit to instantly
inflate the airbags.
During a crash, your seat belt helps
restrain your lower body and torso.
Your airbag provides a cushion to help restrain and protect your headand chest.
Driver an d Passenge r Safet y
CONTINUED

Page 49 of 293

Additional Informatio n Abou t You r SR S
Since both airbags use the same
sensors, both airbags normally
inflate at the same time. However, it is possible for only one airbag to
inflate.
This can occur when the severity of a collision is at the margin, or
threshold, that determines whether or not the airbags will deploy. Insuch cases, the seat belt will provide
sufficient protection, and the
supplemental protection offered by
the airbag would be minimal.
After inflating, the airbagsimmediately deflate, so they won'tinterfere with the driver's visibility,
or the ability to steer or operate
other controls.
The total time for inflation and deflation is approximately one-tenth
of a second, so fast that most
occupants are not aware that the
airbags deployed until they see them
lying in their laps. After a crash, you may see what
looks like smoke. This is actually
powder from the airbag's surface.
Although the powder is not harmful, people with respiratory problems
may experience some temporarydiscomfort. If this occurs, get out of
the car as soon as it is safe to do so.
U.S. Owners
For additional information on how
your airbags work, see the booklet
titled SRS: What You Need to Know
About Airbags that came with your
owner's manual.
Canadian Owners
For additional information on how
your airbags work, ask your dealer
for a copy of the booklet titled SRS:
What You Need to Know About Airbags.
Drive r an d Passenge r Safet y

Page 235 of 293


Interio
r Care , Corrosio n Protectio n

Ai r Freshener s
If you want to use an air freshener/
deodorizer in the interior of your car,
it is best to use a solid type. Some
liquid air fresheners contain chemi-
cals that may cause parts of the
interior trim and fabric to crack or discolor.
If you use a liquid air freshener,
make sure you fasten it securely so it
does not spill as you drive. Corrosio
n Protectio n
Two factors normally contribute to causing corrosion in your car:
1. Moisture trapped in body cavities. Dirt and road salt that collects in
hollows on the underside of the car stays damp, promoting
corrosion in that area.
2. Removal of paint and protective coatings from the exterior and
underside of the car.
Many corrosion-preventive measures are built into your Honda. You can
help keep your car from corroding
by performing some simple periodic
maintenance:
Repair chips and scratches in the
paint as soon as you discover them. Inspect and clean out the drain
holes in the bottom of the doors
and body. Check the floor coverings for
dampness. Carpeting and floor
mats may remain damp for a long-
time, especially in winter. This dampness can eventually cause
the floor panels to corrode. Use a high-pressure spray to clean
the underside of your car. This is especially important in areas that
use road salt in winter. It is also a
good idea in humid climates andareas subject to salt air. Be careful
of the ABS wheel sensors and
wiring at each wheel. Have the corrosion-preventive
coatings on the underside of your
car inspected and repaired
periodically.
Appearanc e Car e

Page 272 of 293


If you are planning to take your
Honda outside the U.S. or Canada,
contact the tourist bureaus in the areas you will be traveling in to find
out about the availability of unleaded
gasoline with the proper octane
rating.

If unleaded gasoline is not available,
be aware that using leaded gasoline in your Honda will affect perfor-
mance and fuel mileage, and damage
its emissions controls. It will no longer comply with U.S. and
Canadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into compliance will require the replace-
ment of several components, such as
the oxygen sensors and the three
way catalytic converter. These re- placements are not covered under
warranty.
Drivin
g in Foreig n Countrie s

Technica l Informatio n

Page 274 of 293

Emission
s Control s

Exhaus t Emission s Control s
The exhaust emissions controls include four systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three WayCatalytic 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 exhaustemissions 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. Throughchemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO 2), dinitrogen
(N 2), and water vapor. Replacemen
t Part s
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 car.
The emissions control systems are covered by warranties separate from
the rest of your car. Read your
warranty manual for more informa- tion.

Technical Informatio n