2003 FIAT BARCHETTA Lambda

66
PROTECTING THE
ENVIRONMENT
Protecting the environment has been
the guiding principle in the design of
the Fiat barchetta right from the start.
The result is the use of materials and
creation of devices that can reduce or
considerable curtail harmful influences
on the environment.
The Fiat barchetta is ready to travel
well ahead of the most stringent in-
ternational pollution control stan-
dards.
USE OF MATERIALS
THAT DO NOT HARM
THE ENVIRONMENT
None of the car’s components con-
tain asbestos. Padding and the climate
control system do not contain CFI’s
(Chlorofluorocarbides) the gases con-
sidered responsible for the destruc-
tion of the ozone layer. Other sub-
stances which may pollute the air and
water tables, such as cadmium used in
bolt anti-rust coverings and the chro-
mate used in some colourings, have
been replaced entirely with environ-
mentally-friendly substances. DEVICES FOR REDUCING
PETROL ENGINE EMISSIONS
Three-way catalytic converter
(catalytic exhaust pipe)
Carbon monoxide, nitrogen oxides
and unburned hydrocarbons are the
main harmful components in exhaust
gases.
The catalytic exhaust pipe and the
devices connected to it are a “minia-
ture laboratory” where a very high
percentage of these components is
converted into harmless substances.
The conversion is aided by minute
particles of precious metals on the ce-
ramic core enclosed in the stainless-
steel container.Lambda Sensor
All petrol versions are fitted with this
device. It ensures that air and fuel are
constantly mixed in the correct pro-
portions. This is a fundamental condi-
tions for the proper functioning of the
engine and the catalytic converter.
Anti-evaporation canister
As it is impossible to stop the build-
up of petrol fumes even when the en-
gine is not running, the system traps
them in a special active carbon canis-
ter. They are sucked in from here and
burnt while the engine is running.

79
If the engine begins to “lose its
smoothness” when travelling, contin-
ue your journey but reduce the
demands you are making on the
engine and have the car seen to at a
Fiat Dealership.
When the instrument panel fuel
reserve warning light Kcomes on, fill
up as soon as possible. A low level of
fuel can cause an uneven supply of
fuel to the engine with the inevitable
increase in the temperature of the
exhaust gas and serious damage to
the catalytic converter.
Never run the engine with one or
more spark plugs disconnected, even
for testing purposes.
Do not warm up the engine by let-
ting it idle for a while before moving
off unless the outside temperature is
very low and, even in this case, only
do so for less than thirty seconds.TOWING
A TRAILER
IMPORTANT
The car must be fitted with a
homologated tow hitch and suitable
electrical system for towing a cara-
van or trailer. Have the tow hitch fit-
ted by an expert who will issue spe-
cific documentation for use on
roads.
Fit special and/or additional
rearview mirrors in accordance with
the highway code.
Remember that towing a trailer
makes it harder for the car to climb
the maximum gradients specified,
increases braking and overtaking dis-
tance, proportionally to the overall
weight of the trailer.
The weight the trailer exerts on
the car’s tow hitch coupling reduces
the car’s loading capacity by the
same amount. Do not install other heat shields
and do not remove those already fit-
ted to the catalytic converter and
exhaust pipe.
Do not allow anything to be
sprayed onto the catalytic converter,
lambda sensor and exhaust pipe.
When functioning normal-
ly the catalytic converter
develops high temperatures. For
this reason do not park the car
over inflammable material (grass,
dry leaves, pine needles, etc.): fire
hazard.
WARNING
Failure to heed these pre-
cautions could cause a
fire.
WARNING

104
15
15
15
10
15
30
15
20
20
40
20
20
15
15
7.5
7.5
15
7.5
60
7.5
7.5
15
60
7.5
–
Protected device Ampere Fuse - number - Location
Instrument panel power
Digital clock power
Cigar lighter power
Hazard light repeater power
Hazard light repeater power
Window winder control unit power
Door locking receiver power
Door locking control unit power
Manual climate control system control unit power
Supplementary headlight relay power
Radiator fan relay
Manual climate control system compressor relay
Climate control system compressor relay energy
Phase variator solenoid valve
Radiator fan relay energy
Fuel pump relay energy
Lambda sensor
Cylinder position sensor
Interconnection control unit
Injection control unit
Injection control unit
Window winder control unit
Electronic alarm control unit
Fiat CODE control unit
Spare13-fig. 30
12-fig. 30
12-fig. 30
14-fig. 30
13-fig. 30
fig. 31
12-fig. 30
fig. 31
9-fig. 30
5-fig. 33
9-fig. 30
9-fig. 30
fig. 34
fig. 34
fig. 34
fig. 34
fig. 34
fig 34
1-fig. 33
fig. 34
fig. 34
13-fig. 30
1-fig. 33
fig. 34
15-fig. 30

138
FUEL SUPPLY/IGNITION
Integrated electronic injection and ig-
nition system: a single electronic con-
trol unit controls both functions. It
processes both the time the injection
lasts (for fuel metering) and the igni-
tion’s advance angle.
Type: Sequential in phase Multipoint
Air cleaner: dry-type with paper fil-
ter element; thermostatically con-
trolled intake.
Petrol pump: in-tank.
Injection pressure: 3 bar
Method of measuring the amount of
aspirated air by directly measuring the
maximum rate of flow with a hot wire
air flow meter.
“Closed loop” petrol metering (in-
formation about combustion provid-
ed by the Lambda sensor).Firing order: 1-3-4-2
Spark plugs:
– Champion RC10YCC
– NGK BKR6EZLUBRICATION
Forced-fed with gear pump with
pressure relief valve incorporated.
Oil purification by means of full-flow-
cartridge filter.
COOLING
Cooling system with radiator, cen-
trifugal pump and expansion tank.
“Controlled” by-pass type thermo-
stat on the secondary circuit for the
recirculation of water from the engine
to the radiator.
Electric fan for radiator cooling with
thermostatically-controlled on/off
switch on the radiator.
Modifications or repairs to
the fuel feed system that
are not carried out properly or do
not take the system’s technical
specifications into account can
cause malfunctions with the risk of
fire.
WARNING

160
Engine coolant level................... 119
Engine coolant temperature
gauge ......................................... 29
Engine oil
– checking the level ............... 118
– engine oil consumption ..... 118
– specifications........................ 145
EOBD system ............................ 62
Evaporation system ................... 66
Fiat CODE system .................. 11
First aid kit .................................. 110
Front fog lights
– bulb replacement ............... 94
– controls................................. 41
Fuel
– consumption ........................ 147
– fuel cut-off switch ............... 41
– level gauge ............................ 29
– filler cap ................................ 65
Full-beam headlights
– bulb replacement ............... 94
– flashing................................... 39
– controls................................. 38
Fuses ............................................. 98
Gearbox
– using the gearbox ............... 71
Getting to know your car.6
Glove compartment light ......... 98
Glove compartment .................. 42
Handbrake......................... 70-139
Hard top .............................. 49-155
Hazard lights ............................... 40
Head restraints........................... 19
Headlights
– beam slant ............................ 55
– front fog light slant ............. 55
Heating and ventilation............. 34
Hood .................................... 46-133
Identification data .................... 136
If an accident occurs ................. 109
In an emergency.................. 83
Instrument panel ........................ 8
Instruments ................................ 28
Jack ............................................. 88
Jacking the car ............................ 106
Keys ........................................... 11
Kilometre counter..................... 28
Lambda sensor ......................... 66
Lubricants .................................... 145
Mileometer ............................. 28
Number plate lights................ 97
Oddment compartment ........ 42
Paintwork ................................. 137
Parking lights (PARK)................ 17
Parking .......................................... 70
Performance................................ 140
Plates
– identification data ............... 136
– paint identification .............. 137
Pollen filter ................................. 123
Power steering fluid level ........ 120
Pretensioners.............................. 27
Radio transmitters .............. 82
Radio-frequency remote
controls ................................ 15