2004 HONDA S2000 fuel

Try to maintain a constant speed.
Everytimeyouslowdownand
speed up, your vehicle uses extra
fuel.Usethecruisecontrolwhen
appropriate.
Combine several short trips into
one.
The air conditioning puts an extra
load on the engine which makes it
usemorefuel.Usethefresh-air
ventilation when possible.
Always maintain your vehicle
according to the maintenance
schedule. See
on page
.
an underinf lated tire
causes more ‘‘rolling resistance,’’
which uses f uel.
The build-up of snow or mud on
your vehicle’s underside adds
weight and rolling resistance.
Frequent cleaning helps your f uel
mileage and reduces the chance of
corrosion.
Drive moderately. Rapid
acceleration, abrupt cornering,
and hard braking use more f uel.
Always drive in the highest gear
possible.122
For example,
Fuel Economy
Improving Fuel Economy
Owner’s
Maintenance Checks
Bef ore Driving104

̵
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Your authorized Honda dealer
knows your vehicle best and can
provide competent, ef f icient service.
However, service at a dealer is not
mandatory to keep your warranties
in effect. Maintenance may be done
by any qualif ied service f acility or
skilled person to keep your
warranties in ef f ect. Keep all the
receipts as proof of completion, and
have the person who does the work
f ill out the Maintenance Record.
Check your warranty booklet f or
more inf ormation.
We recommend the use of Honda
parts and f luids whenever you have
maintenance done. U.S. Vehicles:
According to state and federal
regulations, f ailure to perf orm
maintenance on the items marked
with will not void your emissions
warranties. However, Honda
recommends that all maintenance
services be perf ormed at the
recommended time or mileage
period to ensure long-term reliability.
Youshouldcheckthefollowing
items at the specif ied intervals. If
you are unsure of how to perf orm
any check, turn to the appropriate
page listed.
Engine oil level Check every
time you fill the fuel tank. See
page .
Engine coolant level Check the
radiator reserve tank every time
you f ill the f uel tank. See page .
Brakes Check the f luid level
monthly. See page .
Tires Check the tire pressure
monthly. Examine the tread f or
wear and foreign objects. See page .
Lights Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
and license plate lights monthly.
See page . 103
103
136
145
137
Maintenance Schedule
Maint enance
Servicing Your Vehicle Maintenance, replacement, or
repair of emissions control
devices and systems may be done
by any automotive repair
establishment or individual using
parts that are ‘‘certif ied’’ to EPA
standards.Owner’s Maintenance Checks
122

ÌÌ
Ì
Maint enance123
Check oil and coolant at each fuel stop
Every 7,500 miles (12,000 km) or every 1 year, whichever comes first Every 7,500 miles (12,000 km)
Service the items listed at the indicated distance (or time, if given).
miles x 1,000
km x 1,000
Check inflation and condition once a month
Check engine oil and coolant
Check tires
Replace engine oil
Check tires inflation and condition
Replace engine oil filter
Check front and rear brakes
Check parking brake adjustment
Inspect the following items:
Tie-rod ends, steering gearbox, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections
Inspect drive belts
Replace dust and pollen filter
Replace air cleaner element
Replace spark plugs
Inspect valve clearance
Replace manual transmission fluid
Replace rear differential fluid
Inspect idle speed
Replace engine coolant
Replace brake fluid
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th
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er
rw
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Inspect every 105,000 miles (168,000 km)(
(O
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re
ev
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2y
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ea
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s f
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es
s f
fi
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)
At 120,000 miles (192,000 km) or 10 years, then every 60,000 miles (96,000 km) or 5 years
Every 3 years (independent of mileage)
(
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)
15
24 30
4845
7260
9675
120 90
144 105
168120
192135
216150
240
See information on maintenance and emissions warranty, middle column, page .
: 122
Maintenance Schedule for Normal Conditions

ÎÌ
Ì
Ì
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Maint enance124
Service the items listed at the indicated distance (or time, if given).
miles x 1,000
km x 1,000 Check oil and coolant at each fuel stop
Check inflation and condition once a month
Every 3,750 miles (6,000 km) or every 6 months, whichever comes first Every 7,500 miles (12,000 km)
Every 15,000 miles (24,000 km) (Use normal schedule except in dusty conditions)
( ( O
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re
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ry
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ye
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r,
, w
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(
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s f
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)
(
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ry
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30
48
15
24 45
72
( (
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)
60
96 75
120 90
144 105
168120
192135
216150
240
Inspect every 105,000 miles (168,000 km)
At 120,000 miles (192,000 km) or 10 years, then every 60,000 miles (96,000 km) or 5 years Every 3 years (independent of mileage)
Check engine oil and coolant
Check tires
Replace engine oil and oil filter
Check tires inflation and condition
Check front and rear brake
Inspect the following items:
Tie-rod ends, steering gearbox, and boots
Suspension components
Driveshaft boots
Check parking brake adjustment
Lubricate all hinges, locks, and latches
Inspect the following items: Brake hoses and lines (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections
Lights and controls, Vehicle underbody
Inspect drive belts
Replace dust and pollen filter
Replace air cleaner element
Replace spark plugs
Inspect valve clearance
Replace manual transmission fluid
Replace rear differential fluid
Inspect idle speed
Replace engine coolant
Replace brake fluid
See dust and pollen filter on page for replacement information under special driving conditions. Every 7,500 miles (12,000 km) or every 6 months, whichever comes first
See information on maintenance and emissions warranty, middle column, page .
1:
: 143
122
1
Maintenance Schedule for Severe Conditions

Keeping the tires properly inf lated
provides the best combination of
handling, tread lif e, and riding
comf ort.Underinf lated tires wear unevenly,
adversely affect handling and fuel
economy, and are more likely to
fail from being overheated.
Overinf lated tires can make your
vehicleridemoreharshly,are
more prone to damage f rom road
hazards, and wear unevenly.
We recommend that you visually
check your tires every day. If you
think a tire might be low, check it
immediately with a tire gauge. Thecompactsparetirepressureis:
For convenience, the recommended
tire sizes and cold air pressures are
on a label on the driver’s doorjamb.
For additional technical inf ormation,
see page .Tire pressure f or high speed driving
is the same as f or normal driving.
Use a gauge to measure the air
pressure at least once a month. Even
tires that are in good condition may
lose one to two psi (10 to 20 kPa, 0.1
to 0.2 kgf /cm ) per month.
Remember to check the spare tire at
thesametime.
Check the pressure in the tires when
they are cold. This means the vehicle
has been parked f or at least three
hours, or driven less than 1 mile (1.6
km).
Add or release air, if needed, to
match the recommended cold tire
pressures.
182Tire Size Cold Tire Pressure
for Normal Driving
Tire Size Cold Tire Pressure
for Normal Driving
Tires
Maint enance
Inf lation
146
Front:
Rear:
60 psi (420 kPa , 4.2 kgf/cm
)
215/45R17 87W 32 psi (220 kPa , 2.2
kgf/cm
)
245/40R17 91W 32 psi (220 kPa , 2.2 kgf/cm
)

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No. Amps.No. Amps. Circuits Protected
Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13 7.5 A
15 A
10 A
20 A
7.5 A 15 A
7.5 A
15 A
7.5 A 15 A
10 A 14
15
16
17
18
19
20
21
22
23
24
25
26
2710 A
10 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A
7.5 A 20 A
20 A Daytime Running Lights
Keyless Entry
Back-up
Interior Light
Small Lights
Radio
Starter Signal
Heater Control,
Cooling Fan Relay
Power Mirrors
Right Power Window
Lef t Power Window
Not used
Not used
Not used
Windshield Wiper,
Auto Stop Signal
Washer Motor
Not used
Not used
Accessory Socket
Windshield Wiper
Turn signal Light
ACG
Instrument Light, Backup
Lights
Ignition Coil
Engine Start
Fuel Pump, SRS
SRS
: Canadian Model
Fuse Locations
T aking Care of t he Unexpect ed172
I IN NT TE
ER
RI IOOR R F
FU
US SEE B
BOOX X

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Specif ications
T echnical Inf ormation180
Dimensions
WeightsCapacities
Engine 162.0 in (4,115 mm)
68.9 in (1,750 mm)
50.6 in (1,285 mm)
94.5 in (2,400 mm)
57.9 in (1,470 mm)
59.4 in (1,510 mm)
13.2 US gal (50)
131.6 cu-in (2,157 cm
)
11.1 : 1 1.72 US gal (6.5
)
2.01 US gal (7.6)
5.1 US qt (4.8
)
5.1 US qt (4.8)
5.9 US qt (5.6)
1.7 US qt (1.6)
1.7 US qt (1.6)
0.78 US qt (0.74
)
0.81 US qt (0.77)
2.7 US qt (2.6)
4.4 US qt (4.2)
3.43 x 3.57 in (87.0 x 90.7 mm)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating
Fuel tank
Engine coolant
Engine oil
Manual
transmission
fluid
Differential
oil
Windshield
washer
reservoir
See the certification label attached
to the driver’s doorjamb.
Water cooled 4-stroke DOHC
VTEC 4-cylinder gasoline engine
Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Spark Plug Gap
0.04 in (1.1 mm)PK22PR-L11S PFR7G-11S
Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity:
0.16 US gal (0.6
)
Excluding the oil remaining in the engine.
Front
Rear
1:
2:
NGK :
DENSO : Change
Total
Change
Total
Change
Total
Change
Total
U.S. Vehicles
Canadian
Vehicles
0mm
0.1 mm
1
2
Including filter
Without filter

The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Secondary
Air Injection System, 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)
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 con-
ditions.During engine warm-up, air is
pumped into the exhaust to reduce
emissions when the engine is cold.
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.
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 from
the rest of your vehicle. Read your
warranty manual f or more informa-
tion.
The Onboard Ref ueling Vapor
Recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
2
2
Emissions Cont rols
T echnical Inf ormation
Exhaust Emissions Controls
Onboard Ref ueling Vapor
Recovery Replacement Parts
PGM-FI Syst emSecondary A ir Inject ion Syst em
Three Way Catalytic Converter
Ignit ion T iming Cont rol Syst em
186