2006 HONDA CIVIC engine

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). 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.
Go to a service station or garage
where you can get technical
assistance.
This indicator should never
come on when the engine is
running. If it starts f lashing 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.
Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning lights.
1. 2. 3. 4. 153
191
237
L ow Oil Pressure Indicator
Emergency T owingCharging System Indicator
L ow Oil Pressure Indicator, Charging System Indicator
T aking Care of t he Unexpect ed
229
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.
——y
y
(#yy

If the indicator comes on repeatedly,
even though it may turn of f as you
continue driving, have the vehicle
checked by your dealer as soon as
possible.
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 the battery in your vehicle 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.
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 for a state
emissions test until the readiness
codes are set. Ref er to
for more
inf ormation (see page ).
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. You will also see a
‘‘CHECK FUEL CAP’’ message on
the inf ormation display. Tighten the
cap until it clicks at least once (see
page ). Tightening the cap will
not turn the indicator of f
immediately; it takes at least three
days of normal driving. 250
152
Malf unct ion Indicat or L amp
State
Emissions T esting
Readiness Codes
230
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.
——y
y
(#yy

µµ
If yo ur vehic le needs to be to wed,
c all a pro fessio nal to wing servic e o r
o rg anizatio n. Never to w yo ur vehic le
with just a ro pe o r c hain. It is very
dang ero us. T he o perato r
lo ads yo ur vehic le o n the bac k o f a
truck.
Therearetwo waysto towyour
vehic le: If, due to damag e, yo ur vehic le must
be to wed with the fro nt wheels o n
the g ro und, do this:
Release the parking brake.
Release the parking brake.
Start the eng ine.
Shiftto D,thento N.
Turn o ff t he e ng in e. speedbelow35mph(55km/h).
The tow
truck uses two pivoting arms that go
under the tires ( fro nt) and lift them
o ff the g ro und. T he o ther two tires
remain o n the g ro und.
M anual T ransmissio n:
Auto matic T ransmissio n:
CONT INUED
Flat -bed EquipmentWheel-lif t Equipment
This is the best way to trans-
port your vehicle.
T his is an
acceptable way to tow your
vehicle.
Emergency Towing
T aking Care of t he Unexpect ed
237
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
vehicle must be transported with the
f ront wheels of f the ground.
——y
y
(#yy
W it h t he f r o nt w hee ls o n t he g ro und,
50 m iles ( 80 k m ) , a n d k eep t h e
do no t
t o w t h e v e h ic le mo re than
Shift the transmissio n to neutral.
Leave the ignition switch in
the ACCESSORY (I) position so
the steering wheel does not lock.
Leave the ignition switch in
the ACCESSORY (I) position so
the steering wheel does not lock.

Your vehicle has several identif ying
numbers 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.
The VIN is also located on the
engine bulkhead. Slide the cover on
the engine compartment bulkhead to
view the VIN. Always close the cover
when f inished.
Identif ication Numbers
240
CERTIFICATION LABEL
VEHICLE IDENTIFICATION NUMBER
COVER
——y
y
(#yy

The transmission number is on a
label on top of the transmission.
The engine number is stamped into
the engine block.
Identif ication Numbers
T echnical Inf ormation
241
AUTOMATIC TRANSMISSION NUMBER
ENGINE NUMBER
MANUAL TRANSMISSION NUMBER
——y

y
(#yy

Î Î
´ µ
Î Î
Specif icat ions
242
Dimensions
Weights
EngineCapacities
176.7 in (4,489 mm)
61.9 in (1,572 mm)
56.5 in (1,435 mm)
106.3 in (2,700 mm)
59.0 in (1,499 mm)
60.2 in (1,528 mm) 13.2 US gal (50
)
1.37 US gal (5.2
)
1.37 US gal (5.2)
1.72 US gal (6.5
)
1.77 US gal (6.7)
4.2 US qt (4.0
)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating See the certification label attached
to the driver’s doorjamb.
Water cooled 4-stroke, SOHC
VTEC 4-cylinder gasoline engine
3.19 x 3.44 in (81.0 x 87.3 mm) 110 cu-in (1,798 cm
)
10.5 3.7 US qt (3.5
)
1.5 US qt (1.4
)
1.7 US qt (1.6)
NGK:
DENSO: IZFR6K-11SSKJ20DR-M11S
0.04 in (1.1 mm)
Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Excluding the oil remaining in the engine
Including the coolant in the reserve tank and that remaining in the
engine
Reserve tank capacity:
Fuel tank
Engine
coolant
Engine oil Manual
transmission
fluidAutomatic
transmission
fluid
4.8 US qt (4.5
)
2.6 US qt (2.5)
6.2 US qt (5.9
)
2.5 US qt (2.4)
0.11 US gal (0.4
)
4.8 US qt (4.5
)
Front Rear
Approx.
Spark Plug Gap: 1: 2:Change
Manual Automatic
Total
ManualAutomatic
Change
Without filter
Total
ChangeTotal
Change Total
U.S. Vehicles
Canada Vehicles
Windshield
washer reservoir0
0.1 mm
1 2
Including filter
——y

y
(#yy

Î
Î
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. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute 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.
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 .
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 Clean Air Act
Crankcase Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Evaporative Emissions Control
System
Emissions Cont rols
T echnical Inf ormation
247
——y
y
(#yy

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 f rom
the rest of your vehicle. Read your
warranty manual f or more inf orma-
tion.
The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our 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
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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 ), nitrogen
(N ), and water vapor.
2
2
Exhaust Emissions Controls Replacement Parts
Emissions Cont rols
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
248
——y
y
(#y
y