engine HONDA S2000 2008 2.G Repair Manual

If there was no coolant in the
reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge or lower
bef ore checking the radiator.Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off.Put the radiator cap back on
tightly. Run the engine, and check
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (see
on page ).
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
Start the engine, and set the
temperature control dial to
maximum heat. Add coolant to the
radiator up to the base of the f iller
neck. If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and ref illed with
the proper mixture as soon as you
can.
9.
8.
7. 10.
11.228
Emergency
Towing
If theEngineOverheats
T aking Care of t he Unexpect ed
217
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
\f—\f—y


y
(\fy\fy
2008 S2000

Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning indicators.
Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(see on page).
This indicator should never come on
when the engine is running. If it
starts flashing or stays on, the oil
pressure has dropped very low or
lost pressure. Serious engine
damage is possible, and you should
take immediate action.
If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
Go to a service station or garage
where you can get technical
assistance.
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
1.
2.
3.
4.
170
131
228
L ow Oil Pressure Indicator, Charging System Indicator
Emergency T owing
L ow Oil Pressure
Indicator
Charging System
Indicator
218
Running the engine with low oil
pressure can cause serious mechanical
damage almost immediately. Turn of f
the engine as soon as you can saf ely get
the vehicle stopped.
\f—\f—y

y
(\fy\fy
2008 S2000

If the indicator comes on repeatedly,
even though it may go of f as you
continue driving, have your vehicle
checked by a dealer as soon as
possible.
If this indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your vehicle’s perf ormance, it can
reduce your f uel economy and cause
increased emissions. Continued
operation may cause serious damage.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.
If you have recently ref ueled your
vehicle, the indicator coming on
could be due to a loose or missing
f uel f ill cap. You will also see a
‘‘CHECK FUEL CAP’’ message on
the inf ormation display. Tighten the
cap until it clicks at least once.
Tightening the cap will not turn the
indicator of f immediately; it can take
several days of normal driving. If your vehicle’s battery has been
disconnected or gone dead, these
codes are erased. It can take several
days of driving under various
conditions to set the codes again.
To check if they are set, turn the
ignition switch to the ON (II)
position, without starting the engine.
The malf unction indicator lamp will
come on f or 20 seconds. If it then
goes of f , the readiness codes are set.
If it blinks f ive times, the readiness
codes are not set. If possible, do not
take your vehicle f or an emissions
test until the readiness codes are set.
Refer to for
more information (see page ).
245
Malf unction Indicator L amp
Readiness Codes
Emissions T estingT aking Care of t he Unexpect ed
219
If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.
\f—\f—y
y
(\fy\fy
2008 S2000

µÎ
Î
No.
No. Amps. Circuits Protected Amps. Circuits Protected
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
10
11
12
13 7.5 A
15 A
7.5 A
7.5 A 10 A
20 A
7.5 A 15 A
7.5 A
7.5 A 15 A
10 A Windshield Wiper,
Auto Stop Signal
Washer Motor
IGP (DBW)
IGP (LAF)
Accessory Socket
Windshield Wiper
Turn Signal Light
ACG
Meter, Backup Lights
Not used
Engine Start
Fuel Pump, SRS
SRS 10 A
15 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A
7.5 A 20 A
20 A
15 A
15 A
15 A Daytime Running Lights
Keyless Entry
Back-up
Interior Light
Small Lights
Radio
TPMS
Heater Control,
Cooling Fan Relay
Power Mirrors
Right Power Window
Lef t Power Window
IG Coil
LAF
DBW
: if equipped
Fuse Locations
226
I
IN
NT
TE
ER
RI
IO
OR
RF
FU
US
SE
EB
BO
OX
X
\f—\f—y

y
(\fy\f
y
2008 S2000

Your vehicle has several identif ying
numbers located in various places.
The vehicle identif ication number
(VIN) is the 17-digit number your
dealer uses to register your vehicle
f or warranty purposes. It is also
necessary f or licensing and insuring
your vehicle. The easiest place to
find the VIN is on a plate fastened to
the top of the dashboard. You can
seeitbylookingthroughthe
windshield on the driver’s side. It is
also on the certification label
attached to the driver’s doorjamb,
and is stamped on the engine
compartment bulkhead. The VIN is
also provided in bar code on the
certif ication label.
Identif ication Numbers
232
VEHICLE IDENTIFICATION NUMBERCERTIFICATION LABEL
\f—\f—y
y
(\fy\fy
2008 S2000

The transmission number is on a
label underneath the transmission.
The engine number is stamped on
the f ront right corner of the engine
block, below the valve cover.
Identif ication Numbers
Technical Inf ormation
233
TRANSMISSION NUMBERENGINE NUMBER
\f—\f—y

y
(\fy\fy
2008 S2000

Î
Î
´
µ
Î
Î
Specif ications
234
Dimensions
Engine
WeightsCapacities
Seating Capacities
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)
132 cu-in (2,157 cm
)
11.1 : 1
3.43 x 3.57 in (87.0 x 90.7 mm)
Length
Width
Height
Wheelbase
Track
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
Gross vehicle weight rating
(GVWR)
Excluding the oil remaining in the engine
0.16 US gal (0.6
)
Including the coolant in the reserve tank and that remaining in the
engine
Reserve tank capacity:
Fuel tank
Engine coolant
Engine oil
Manual
transmission
fluid
Differential
fluid
Windshield
washer
reservoir
6.3 US qt (6.0
)
2.6 US qt (2.5)
0.81 US qt (0.77)
0.78 US qt (0.74)
1.7 US qt (1.6
)
1.6 US qt (1.5)
5.9 US qt (5.6)
4.8 US qt (4.5)
5.1 US qt (4.8)
2.01 US gal (7.6
)
1.72 US gal (6.5)
13.2 US gal (50
)
Total
Front
2
2
Front
Rear
1:
2:
NGK :
DENSO : Change
Total
Change
Including filter
Without filter
Total
Change
Total
Change
Total
U.S. Vehicles
Canadian
Vehicles
0mm
0.1 mm
1
2
\f—\f—y
\fy
(\fy\fy
2008 S2000

Î
ÎThe 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 f rom the tank
also produces hydrocarbons.
Controlling the production of NOx,
CO, and HC is important to the
environment. Under certain
conditions of sunlight and climate,
NOx and HC react to f orm
photochemical ‘‘smog.’’ Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
In Canada, Honda vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive
crankcase ventilation valve routes
them from the crankcase back to the intake manif old. They are then
drawn into the engine and burned.
As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
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 .
The Clean Air Act
Crankcase Emissions Control
System
Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Emissions Cont rols
242
\f—\f—y
y
(\fy\fy
2008 S2000

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
Exhaust Emissions Controls Replacement PartsIgnit ion T iming Cont rol Syst em
PGM-FI System Three Way Catalytic Converter
Emissions Cont rols
Technical Inf ormation
243
\f—\f—y
\fy
(\fy\fy
2008 S2000

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
244
THREE WAY CATALYTIC CONVERTER
\f—\f—y
y
(\fy\fy
2008 S2000