catalytic converter HONDA S2000 2007 2.G Owners Manual

This shows how much fuel you have.
It may show slightly more or less
th an the actual amount. Your
vehicl e’s on board diagnostic
system will detect a loose or missing
fu el fill cap as an evaporative system
leak. The first time a leak is detected
a ‘‘CHECK FUEL CAP’’ message
appears on the information display.
Turn the engine off, and confi rm the
fuel fill cap is installed. If it is, loosen
it, then retighten it until it clicks at
least once. The message should go
off after several days of normal
driving once you tighten or replace
the fuel fill cap. To scroll to another
display, press the trip button. The
‘‘CHECK FUEL CAP’’ message will
appe ar each time you restart the
engine until the system turns the
message off. If
the system still detects a leak in
the vehicle’s evaporative emissions
system, the malfunction indicator
lamp (MIL) comes on. If the fuel fill
cap was not already tightened, turn
the engine off, and check or
retighten the fuel fill cap until it
clicks at least once. The MIL should
go off after several days of normal
driving once the cap is tightened or
replaced. If the MIL does not go of f ,
have your vehicle inspected by a
dealer. For more inf ormation, see
page . 187
Fuel Gauge
Check Fuel Cap Message
Gauges
52
Avoid driving with an extremely low
f uel level. Running out of f uel could
cause the engine to misf ire, damaging
the catalytic converter.

Make sure the convertible top and
the windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Lock the doors.
Never park over dry leaves, tall
grass, or other f lammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.If the vehicle is f acing uphill, turn
the front wheels away from the
curb, and put the transmission in
f irst gear.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb, and put the transmission in
reverse gear.
Make sure the parking brake is
f ully released bef ore driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
Resting your f oot on the pedal keeps
the brakes applied lightly, builds up
heat, and reduces their ef f ectiveness.
It also keeps your brake lights on all
the time, conf using drivers behind
you.
Constant application of the brakes
when going down a long hill builds
up heat and reduces their ef f ective-
ness. Use the engine to assist the
brakes by taking your f oot of f the
accelerator and downshif ting to a
lower gear. Your vehicle is equipped with disc
brakes at all f our wheels. A power
assist helps reduce the ef f ort needed
on the brake pedal. The anti-lock
brake system (ABS) helps you retain
steering control when braking very
hard.
Always use the parking brake when
you park your vehicle. Make sure
the parking brake is set f irmly, or
your vehicle may roll if it is parked
on an incline.
CONT INUED
Parking
Parking T ips Braking System
Parking, Braking System
Driving
127

Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers . 200
................................
Specif ications .202
DOT Tire Quality Grading ......................
(U.S. Vehicles) .204
Unif orm Tire Quality ..................................
Grading .204
.................................
Treadwear .204
......................................
Traction .204
.............................
Temperature .205
.................................
Tire Labeling .206 .......................
Emissions Controls .207
.....................
The Clean Air Act .207
Crankcase Emissions Control ....................................
System .207
Evaporative Emissions Control ....................................
System .207
Onboard Ref ueling Vapor ................................
Recovery .207
...
Exhaust Emissions Controls . 208
....................
PGM-FI System .208
Ignition Timing Control ................................
System .208
Three Way Catalytic ...........................
Converter .208
....................
Replacement Parts . 208
..
Three Way Catalytic Converter . 209
..............
State Emissions Testing . 210
T echnical Inf ormation
Technical Inf ormation
199

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
quality parts may increase the
emissions f rom your vehicle.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
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 f uel control. The
engine control module (ECM) 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. 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
Emissions Cont rols
Exhaust Emissions Controls Replacement PartsIgnit ion T iming Cont rol Syst em
PGM-FI System Three Way Catalytic Converter
208

The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred 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 f ire any
combustible materials that come
near it. Park your vehicle away from
high grass, dry leaves, or other
f lammables.A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. 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 inef f ective. Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
Technical Inf ormation
209
THREE WAY CATALYTIC CONVERTER

ÎÎ
CONT INUED
..........
Taillights, Changing Bulbs . 159
.
Taking Care of the Unexpected . 173
Technical Descriptions ....
DOT Tire Quality Grading . 204
.....
Emissions Control Systems . 207
Three Way Catalytic ...............................
Converter .209
.......................
Temperature Gauge .53
...................
Tensioners, Seat Belts . 18
................
Thef t Protection, Radio . 105
..
Three Way Catalytic Converter . 209............................
Time, Setting the .54
....................................
Tire Chains .168
.........
Tire, How to Change a Flat . 175
.................................
Tire Labeling .206
...............................................
Tires .163
..............................
Air Pressure .165
...................................
Balancing .166
........................................
Chains .168
.................
Checking Wear . 165, 166
.................
Compact Spare Tire . 174
....
DOT Tire Quality Grading . 204
......................................
Inf lation .164
..................................
Inspection .165
...................................
Replacing .167
........................
Rotation, Do not .166
...........................................
Snow .168
............................
Specif ications .203
...................................
Wear . 165, 166
...................
Tools, Tire Changing . 175
Towing ......................
A Trailer, Do Not .131
................
Emergency Wrecker . 196
..................
Trailer, Do Not Tow a . 131
Side Turn Signal, Bulb
..............................
Replacement .158
...............................
Signaling Turns .57
.....................................
Snow Tires .168
..................................
Sound System .88
Spare Tire ......................................
Inf lating .165
............................
Specif ications .203
....................................
Spark Plugs .202
................................
Specif ications .202
................................
Speed Control .106
................................
Speed Limiter .126
..........
SRS, Additional Inf ormation . 20
...
Additional Safety Precautions . 28
.............................
Airbag Service .27
......
Airbag System Components . 20
How the SRS Indicator .......................................
Works .25
How Your Airbags .........................................
Work .22
.............................
SRS Indicator . 25, 47
...................................
Start Button .124
.......................
Starting the Engine .124
In Cold Weather at High ..................................
Altitude .124
................
With a Dead Battery . 182 ..............
State Emissions Testing . 210
........
Steam Coming f rom Engine . 183
Steering Wheel .............
Anti-theft Column Lock . 62
.....................
Stereo Sound System .88
....................
Storing Your Vehicle .171
................................
Stuck Vehicle .196
Supplemental Restraint System ..................................
Servicing .27
.........................
SRS Indicator . 25, 47
...................
System Components . 20
..................................
Synthetic Oil .147
Index
T
INDEX
VII