engine HONDA CIVIC HATCHBACK 2003 7.G Repair Manual

This indicator should come on when
the ignition switch is ON (II), and go
out af ter the engine starts. If it
comes on brightly when the engine
is running, it indicates that the
charging system has stopped
charging the battery.By eliminating as much of the
electrical load as possible, you can
drive several miles (kilometers)
before the battery is too discharged
to keep the engine running. Drive to
a service station or garage where
you can get technical assistance.
Immediately turn of f all electrical
accessories: radio, heater, A/C, rear
def ogger, cruise control, etc. Try not
to use other electrically-operated
controls such as the power windows.
Keep the engine running and take
extra care not to stall it. Starting the
engine will discharge the battery
rapidly.
Charging System Indicator
T aking Care of t he Unexpect ed
235
CHARGING SYSTEM INDICATOR

Youshouldalsohavethedealer
inspect your car if this indicator
comes on repeatedly, even though it
may turn of f as you continue driving.
This indicator should light when the
ignition switch is ON (II), and go out
af ter the engine starts. If it comes on
at any other time, it indicates one of
the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your car’s perf ormance, it can
reduce your f uel economy and cause
your car to put out excessive
emissions. Continued operation may
cause serious damage. If you have recently ref ueled your
car, the cause of this indicator
coming on could be a loose or
missing f uel f ill cap. Check the cap
and tighten it until it clicks several
times. Replace the fuel fill cap if it is
missing. Tightening the cap will not
make the indicator turn of f
immediately; it takes at least one
driving trip.
If the indicator remains on, or the
f uel cap was not loose or missing,
have the car checked by the dealer
as soon as possible. Drive
moderately until the dealer has
inspected the problem. Avoid f ull-
throttle acceleration and driving at
high speed.
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
236 MALFUNCTION INDICATOR LAMP
If you keep driving with the
malf unction indicator lamp on, you can
damage your car’s emissions controls
and engine. Those repairs may not be
covered by your car’s warranties.

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. 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. See State
Emissions Testing on page .
259
Readiness Codes
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
237

All the electrical circuits in your car
have fuses to protect them from a
short circuit or overload. These
f uses are located in two f use boxes.The interior f use box is underneath
the steering column. To open it, turn
the knobs as shown.The under-hood f use box is located
in the back of the engine
compartment on the lef t side. To
open it, push the tabs as shown.
Fuses
T aking Care of t he Unexpect ed
240 INTERIOR
UNDER-HOOD

µ
µ
µ
There are three popular types of
prof essional towing equipment.
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.
The operator
loads your car on the back of a truck.
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.
Shif t the transmission to Neutral. With the f ront wheels on the ground,
it is best to tow the car no farther
than 50 miles (80 km), and keep the
speedbelow35mph(55km/h).
If your car is equipped with a f ront
spoiler, remove it bef ore towing so it
is not damaged.
CONT INUED
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 ed
245
Improper towing preparation will
damage the transmission. Follow the
above procedure exactly. If you cannot
shif t the transmission or start the
engine, 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 ormation
248 VEHICLE IDENTIFICATION NUMBER
CERTIFICATION LABEL

The Engine Number is stamped into
the engine block.
The Transmission Number is on a
label on top of the transmission.
Identif ication Numbers
T echnical Inf ormation249
ENGINE NUMBER
MANUAL
TRANSMISSION
NUMBER

ÎÎ Î
Î Î Î
Specif ications
T echnical Inf ormation
250 Dimensions
Weights
Engine
Capacities
67.1 in (1,705 mm)
54.1 in (1,375 mm)
101.2 in (2,570 mm)
57.8 in (1,468 mm)
57.8 in (1,468 mm)
3.39 x 3.39 in (86.0 x 86.0 mm) 121.9 cu-in (1,998 cm
)
9.8 : 1 13.2 US gal (50
)
1.32 US gal (5.0
)
164.2 in (4,170 mm)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight ratingType
BorexStroke
Displacement
Compression ratio
Spark plugs See the certification label attached
to the driver’s doorjamb. Fuel tank
Engine
coolant
Engine oil Manual
transmission
fluid
Windshield
washer reservoir1.77 US gal (6.7
)
4.4 US qt (4.2
)
4.2 US qt (4.0)
5.6 US qt (5.3)
1.6 US qt (1.5)
1.8 US qt (1.7)
2.6 US qt (2.5
)
0.13 US gal (0.5
)
Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity:
Water cooled 4-stroke DOHC
i-VTEC 4-cylinder gasoline engine 5.8 US qt (5.5
)
See spark plug maintenance
section page 183 .
FrontRear
Approx.
Change Manual
Total Manual
Change
Without filter
Total
ChangeTotal
1: 2: 3: On the U.S. model
On Canadian model 1
23
Including filter

Î
Î
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
.
In Canada, Honda vehicles comply
with the Canadian Motor Vehicle
Saf ety Standards (CMVSS) f or
Emissions valid at the time they are
manuf actured.
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.
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 fromthe 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 .
158
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Emissions Cont rols
T echnical Inf ormation
256

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 from the crankcase and
evaporative emissions control
systems.The emissions control systems are
covered by warranties separate f rom
the rest of your car. Read your
warranty manual f or more inf orma-
tion.
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 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
genuine Honda replacement parts or
their equivalent f or repairs. Using
lower quality parts may increase the
emissions f rom your car.
2
2
Exhaust Emissions Controls
Replacement Parts
PGM-FI Syst em
Ignit ion T iming Cont rol Syst emThree Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation 257