engine HONDA CIVIC HYBRID 2003 7.G Manual Online

Your car 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 your car’s battery has been
disconnected or gone dead, these
codes are erased. It takes several
days of driving under various
conditions to set the codes again.If possible, do not take your car f or a
state emissions test until the
readiness codes are set. Ref er to
State Emissions Testing f or more
inf ormation. (See page .)
To check if they are set, turn the
ignition ON (II), but do not start 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 5 times, the
readiness codes are not set.
297
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
Readiness Codes
274

All the electrical circuits in your car
have fuses to protect them from a
short circuit or overload. These
f uses are located in three f use boxes.The under-hood f use box is located
in the engine compartment on the
driver’s side. To open it, push the
tabs as shown.The secondary f use box is located in
the engine compartment. To open it,
pushthetabsasshown.
Fuses
T aking Care of t he Unexpect ed276
TAB
TAB
UNDER-HOOD FUSE BOX
SECONDARY FUSE BOX

µ
µ µ
The tow
truck uses two pivoting arms that go
under the tires (f ront or rear) and lif t
them of f the ground. The other two
tires remain on the ground. If your car needs to be towed, call a
prof essional towing service or, if you
belong to one, an organization that
provides roadside assistance. Never
tow your car behind another vehicle
with just a rope or chain. It is very
dangerous.
There are three popular types of
prof essional towing equipment.
The operator
loads your car on the back of a truck. Release the parking brake.
Shif t the transmission to Neutral.
The tow
truck uses metal cables with hooks
on the ends. These hooks go around
parts of the f rame or suspension and
the cables lif t that end of the car of f
the ground. Your car’s suspension
and body can be seriously damaged.
If your Honda cannot be transported
by f lat-bed, it should be towed by
wheel-lif t equipment with the f ront
wheels of f the ground. If due to
damage, your car must be towed
with the f ront wheels on the ground,
do the f ollowing: Release the parking brake.
Start the engine.
ShifttoD,thentoN.
Turn of f the engine.
5-speed Manual Transmission
Automatic transmission (CVT)
Wheel-lif t Equipment
Flat -bed Equipment Sling-t ype Equipment
T his is
an acceptable way to tow your
Honda. This is the best way to transport
your Honda. T his method of towing is
unacceptable.
Emergency T owing
T aking Care of t he Unexpect ed282
Improper towing preparation will
damage the transmission. Follow the
above procedure exactly. If you cannot
shif t the transmission or start the
engine (automatic transmission), your
car must be transported with the f ront
wheels of f the ground.

Your car has several identif ying
numbers located in various places.
The Vehicle Identif ication Number
(VIN) is the 17-digit number your
Honda dealer uses to register your
car f or warranty purposes. It is also
necessary f or licensing and insuring
your car. The easiest place to find
the VIN is on a plate fastened to the
top of the dashboard. You can see it
by looking through the 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 Certification label.
Identif ication Numbers
T echnical Inf ormation286
VEHICLE IDENTIFICATION NUMBERCERTIFICATION LABEL

The Engine Number is stamped into
the engine block.
The Transmission Number is on a
label on top of the transmission.
The IMA Motor Number is stamped
on the motor housing.
Identif ication Numbers
T echnical Inf ormation287
ENGINE NUMBER
TRANSMISSION
NUMBER IMA MOTOR
NUMBER

Î
Î
Î
Î
Specif ications
T echnical Inf ormation288
Dimensions
WeightsCapacities
Engine 174.8 in (4,440 mm)
67.5 in (1,715 mm)
56.3 in (1,430 mm)
103.1 in (2,620 mm)
57.9 in (1,470 mm)
57.9 in (1,470 mm)
13.2 US gal (50
, 11.0 Imp gal)
1.06 US gal (4.0
, 0.88 Imp gal)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating See the certification label attached
to the driver’s doorjamb. 1.08 US gal (4.1, 0.90 Imp gal)
1.40 US gal (5.3
, 1.17 Imp gal)
1.37 US gal (5.2, 1.14 Imp gal)
3.4 US qt (3.2
, 2.8 Imp qt)
3.2 US qt (3.0, 2.6 Imp qt)
Fuel tank
Engine
coolant
Engine oil
Automatic
transmission
fluid (CVT)
4.0 US qt (3.8, 3.3 Imp qt)
1.6 US qt (1.5, 1.3 Imp qt)
1.7 US qt (1.6, 1.4 Imp qt)
3.4 US qt (3.2, 2.8 Imp qt)
5.7 US qt (5.4, 4.8 Imp qt)
2.6 US qt (2.5
, 2.2 Imp qt)
4.8 US qt (4.5, 4.0 Imp qt)
Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity:
Excluding the oil remaining in the engine. 0.11 US gal (0.4
, 0.09 Imp gal)
2.87 x 3.15 in (73.0 x 80.0 mm)
82 cu-in (1.339 cm
)
10.8
See spark plug maintenance
section page 215 .
Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Water cooled 4-stroke SOHC VTEC
4-cylinder gasoline engine
Front
Rear
Approx.
1:
2: Change
Manual
CVT
Total Manual
CVT
Change
Without filter
Total
Change
Total
Change
Total
U.S. Cars
Canada Cars
Manual trans-
mission fluid Including filter
Windshield
washer reservoir
1
2

Î
ÎThe 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 burning of gasoline in your car’s
engine produces several byproducts.
Some of these are carbon monoxide
(CO), oxides of nitrogen (NOx) and
hydrocarbons (HC). Gasoline
evaporating from 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 car has a Positive Crankcase
Ventilation System. This keeps
gasses that build up in the engine’s
crankcase from 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 .
186
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
T echnical Inf ormation
Emissions Cont rols
294

The emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual f or more informa-
tion.
The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation 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
conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO and NOx produced.
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manif old. Adding exhaust
gas to the air/f uel mixture reduces
the amount of NOx produced when
the f uel is burned.
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 ), dinitrogen
(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 car.
2
2
Replacement Parts
Exhaust Emissions Controls
Emissions Cont rols
T echnical Inf ormation
PGM-FI Syst em Ignit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
295

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.
Park your car away f rom 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 car’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 car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
T echnical Inf ormation
Three Way Catalytic Converter
296
THREE WAY CATALYTIC CONVERTERS

CONT INUED
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 for re-testing
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 Park
(automatic transmission) or
Neutral (manual transmission).
Increase the engine speed to 2,000
rpm and hold it there until the
temperature gauge rises to at least
1/4of thescale(approximately3
minutes).
T echnical Inf ormation
T esting of Readiness Codes
St at e Emissions T est ing
297