engine HONDA S2000 2005 2.G Workshop Manual

If your vehicle battery has been
disconnected or gone dead, these
codes are erased. It takes at least
three days of driving under various
conditions to set the codes again.
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.
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. Tighten the cap until it
clicks at least three times.
Tightening the cap will not turn the
indicator of f immediately; it takes at
least three days of normal driving. 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.To check if they are set, turn the
ignition to ON (II), without starting
the engine. The malf unction
indicator lamp will come on f or 20
seconds.If itthengoesoff,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 a state emissions test
until the readiness codes are set.
Refer to
f or more inf ormation (see page ).
192
Malf unction Indicator L amp
Readiness Code
State Emissions T estingT aking Care of t he Unexpect ed
171
If you keep driving with the
Malf unction Indicator Lamp on, you
can damage your vehicle’s emissions
controls and the engine. Those repairs
may not be covered by your vehicle’s
warranties.

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No. Amps.No. Amps. Circuits Protected
Circuits Protected
CONT INUED
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 ed
177
I IN NT TE
ER
RI IOOR R F
FUUS SEE B
BOOX X

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
182
VEHICLE IDENTIFICATION NUMBERCERTIFICATION LABEL

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
T echnical Inf ormation
183
TRANSMISSION NUMBERENGINE NUMBER

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Specif ications
184
Dimensions
Engine WeightsCapacities
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)
132 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)
2.6 US qt (2.5)
6.3 US qt (6.0)
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
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.
Gross vehicle weight rating
(GVWR)
Fuel tank
Engine coolant
Engine oil
Manual
transmission
fluid
Differential
fluid
Windshield
washer
reservoir
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

ÎÎ
The 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.
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 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.
Scheduled maintenance is on page
.
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 .
125
Emissions Cont rols
Crankcase Emissions Control
System Evaporative Emissions Control
System
The Clean Air Act
Onboard Ref ueling Vapor
Recovery
T echnical Inf ormation
189

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 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.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
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 inf orma-
tion.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emSecondary A ir Inject ion Syst em
Three Way Catalytic Converter
Ignit ion T iming Cont rol Syst em
190

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 com-
bustible materials that come near it.
Parkyourvehicleawayfromhigh
grass, dry leaves, or other f lamma-
bles.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 tuned-up.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
T echnical Inf ormation
191
THREE WAY CATALYTIC CONVERTER

If you take your vehicle f or a state
emissions test shortly af ter the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain ‘‘readiness
codes’’ that must be set in the on-
board diagnostics f or the emissions
systems. These codes are erased
when the battery is disconnected,
and set again only after several days
of driving under a variety of
conditions.
If the testing f acility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle re-tested within the
next two or three days, you can
condition the vehicle f or retesting by
doing the f ollowing.Make sure the gas tank is nearly,
but not completely, f ull (around
3/4). Make sure the vehicle has been
parked with the engine of f f or 8
hours or more.
Make sure the ambient
temperature is between 20° and
95°F.
Without touching the accelerator
pedal, start the engine, and let it
idle f or 20 seconds.
Keep the vehicle in Neutral.
Increase the engine speed to 2,000
rpm,andholditthereuntilthe
temperature gauge rises to at least
1/4of thescale(about3minutes).
Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
(80to97km/h)foratleast20
minutes. Drive on the highway in
5th.Donotusethecruisecontrol.
When traffic allows, drive for 90
seconds without moving theaccelerator pedal. (Vehicle speed
may vary slightly; this is okay.) If
you cannot do this f or a
continuous 90 seconds because of
traffic conditions, drive for at least
30 seconds, then repeat it two
more times (for a total of 90
seconds).
Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
If the testing facility determines the
readiness codes are still not set, see
your dealer.
St at e Emissions T est ing
T esting of Readiness Codes
192

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#
) This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual complements the service manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
This manual describes the procedures involved in the
replacement of damaged body parts.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
198
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