2009 FIAT BRAVO fuel type

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FIAT BRAVO LPG
KNOWING YOUR CAR
INTRODUCTION
The LPG version of the car features two
fuel systems, one for petrol and one for
LPG.
Like the petrol system, the LPG system
is timed, sequential multipoint type with
special injectors.LPG MULTIPOINT
INJECTION SYSTEM
This product is produced by working clo-
sely with qualified suppliers in the LPG sec-
tor. The injection system used on the car
is an efficient system in terms of engine
performance and is based on the injection
of LPG in a gaseous state.
In this system with four injectors, one for
each intake manifold, the fuel is injected
directly into the engine heat transfer ducts,
thereby metering the LPG very precisely.
This improves combustion and, at the sa-
me time, excludes any possibility of back-
draught.
By adapting the electronic control tech-
nology of petrol engines to meet the spe-
cifications of LPG, it has been possible to
achieve significant results in terms of dri-
veability and controlling exhaust emissions.
Engines running on LPG have almost the sa-
me torque/power specifications as when
running on petrol and, as a result, the
performance of the car is also comparable.
The system operates at tem-
peratures are between −20 °C
and 100°C.
WHAT IS LPG?
LPG (which stands for “liquefied petro-
leum gas”) is a gas mixture used as an eco-
nomical and safe primary energy source.
Its main components are: propane gas and
butane gas mixed in various proportions.
These gases are a product of petroleum
refinement and are also present naturally
in oil fields and methane-producing depo-
sits.
In its natural state this mixture is in a ga-
seous state but, as the pressure increa-
ses at ambient temperature, it can easily
be turned into a liquid state.
LPG is a fuel with a low environmental im-
pact because it reduces the pollution pro-
duced by vehicle exhaust gases.
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FIAT BRAVO LPG
SELECTING THE TYPE
OF FUEL SUPPLY
The car is configured for running inde-
pendently on either petrol or LPG.
The engine is always started on petrol
with an automatic shift to LPG after about
40 seconds at the first significant accele-
ration.
This is the time required to reach opti-
mum conditions (engine coolant tempe-
rature, minimum revs level) for the swit-
ch to LPG. Therefore, there must
always be some petrol in the tank (at
least 1/4 full)in order not to compro-
mise the operation of the fuel pump. When running on LPG, when
the last red LED on the gas
gauge (visible on the switch)
comes on, refuelling is advisa-
ble. If the LPG runs out when in LPG mo-
de, the system automatically switches to
petrol mode. This is indicated by: the
amber LED staying on and the green
LED flashing, the fuel level LEDs going
out and an audio signal from the switch.
In addition, it is advisable to periodically
use up the petrol in the tank (until the re-
serve warning light comes on) in order to
ensure that the petrol does not become
old and possibly deteriorate.
The petrol/LPG switch fig. 1, located on
the central tunnel (next to the gear lever)
allows the driver to select petrol or LPG
operation as they see fit.
fig. 1F0Q0804m
Remember that, once LPG re-
fuelling is complete, it is ne-
cessary to switch again by
pressing the button fig. 1 to
run the car on gas.
The LPG supply system is
equipped with a “consump-
tion” function linked to the
LED display of LPG level on
the switch; this function activates only
after a consistent variation in fuel level
has been detected. You are therefore
advised to fill up with fuel at the first
LPG refuelling to obtain a more preci-
se indication of the “level”.
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FIAT BRAVO LPG
LPG TANK
The car has a (pressurised) tank A-fig. 3
for collecting LPG in a liquid state. It is
ring-shaped and located in the spare wheel
compartment with suitable protection.
The LPG in the tank Ais always in a liquid
and gaseous state, in physical equilibrium
conditions.
The liquid, which cannot be compressed,
dilates by around 0.25 % for each increa-
se in temperature of one degree. For this
reason there is a suitable space allowing
for the increase in volume of the liquid for
all foreseeable temperature increases (e.g.
car parked in the full sunlight in the sum-
mer) without compromising the integrity
of the tank.
There is a safety valve that automatically
limits the refilling of the tank (during re-
fuelling) to a maximum level of 80 % (li-
quid) of its total capacity.Periodically (at least once
every six months), it is advi-
sable to let the LPG in the
tank run out and, at the next
refuelling, check that it does not ex-
ceed the maximum capacity of 41 li-
tres (with a tolerance of 2 litres excess)
(see instructions in the “Capacities”
paragraph of this supplement). If the
value is above 41 litres (with a toleran-
ce of 2 litres excess), contact a Fiat Dea-
lership immediately.
LPG TANK CERTIFICATION
The LPG tank is certified in accor-
dance with the regulations in force.
In Italy, the tank has a life of 10 years
from the registration date of the car.
If the car has been registered in
a country other than Italy, the dura-
tion and the testing/inspection pro-
cedures of the LPG tank can vary de-
pending on the legal requirements in
that country. In any case, after the ti-
me prescribed by the legal require-
ments in the individual countries, ha-
ve it replaced by a Fiat Dealership.There is a plate on the tank B-fig. 3con-
taining the following information:
– homologation country identification and
homologation number;
– type of gas for which it is designed (LPG);
– name of cylinder manufacturer;
– cylinder test pressure (30 bar);
– maximum refilling percentage (80%);
– tank dimensions;
– nominal tank capacity in litres;
– cylinder manufacture date (month/year);
– cylinder serial number.
fig. 3
A
B
F0Q0801m
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FIAT BRAVO LPG
ELECTRONIC CONTROL
UNIT
The car has a dedicated electronic control
unit for the LPG system fig. 7; it uses the
incoming signals from the petrol injection
control unit and converts them into signals
for the injection of the LPG.
The control unit for the injectors has the
same strategy as the petrol control unit
(timed, sequential, multipoint).
LPG/PETROL SWITCH
The LPG/petrol switch fig. 8is located on
the central console near the handbrake
and includes:
A. LPG/petrol operating mode request
button;
B. LPG gauge: 5 LEDs (4 green and 1 red
to indicate the reserve). The red LED only
comes on when the last green LED goes
out.
The red LED indicates the reserve status;
ON. LPG operating mode indicator: green
LED on continuously, located under but-
tonA;
OFF. petrol operating mode indicator:
amber LED on continuously, located abo-
ve buttonA.
IMPORTANT When the ignition key is
turned to the MAR – ONposition, the
LEDs on the switch come on as follows:
– with petrol operation mode selec-
ted: amber OFFLED on;
– with LPG operation mode selected:
all LEDs on the switch are on continuou-
sly and the green ONLED flashes.
To select the type of fuel system desired
(LPG or petrol), press button A-fig. 8.
To change the type of fuel system, it is ad-
visable to operate the button with the car
stationary and the engine running or, whil-st driving, after having released the acce-
lerator.
If switching takes place during acceleration
or pick-up, there may be a brief flat spot
(drop in power).
Do not switch between the two operating
modes when starting the engine.
fig. 8F0Q0805m
fig. 7F0Q0813m
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FIAT BRAVO LPG
REFUELLING THE CAR
LPG FILLER CAP
The gas filler is located next to the petrol
filler cap. It has a one-way valve, located
in the actual filler body.
To access the filler B-fig. 9, open the ac-
cess flap Aand undo the cap C.
Observe the following precautions during
the refuelling operation:
– switch off the engine;
– apply the handbrake;
– turn the ignition key to the STOPpo-
sition;
– do not smoke;
– hand the special adapter over to the qua-
lified LPG refuelling personnel.
IMPORTANT Before refuelling, the LPG
refuelling personnel must ensure that the
adapter is correctly fitted to the filler.
WHEELS
The car does not have a spare wheel but
a tool box fig. 11that contains the “Au-
tomatic Fix&Go” quick tyre repair kit,
a tow ring and a screwdriver. The box is
located in the boot fig. 10, behind the rear
seat backrest.
To use the “Automatic Fix&Go” kit, see
the instructions in the Owner Handbook
that accompanies this supplement.
fig. 9F0Q0807m
fig. 10F0Q0281m
IMPORTANT Different types of fuel pump
adapters exist in the various countries
where the car is sold. The adapter that co-
mes with the car in a special case is spe-
cifically designed for the country in whi-
ch the car is sold. If you are in a different
country, find out what type of adapter is
used there.
IMPORTANT Only use LPG for mo-
tor vehicles.
IMPORTANT Look after the LPG
adapter carefully so that it does not
get damaged.
fig. 11F0Q0814m
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FIAT BRAVO LPG
ENGINE
ENGINE CODE – BODYWORK VERSIONS
Engine code Bodywork version
1.4 16V192B2000 198AXA1B G00C
IDENTIFICATION PLATE
(STAGE 2)
Following the installation of the LPG sy-
stem components, a plate (Stage 2) is fit-
ted to the engine compartment front
crossmember. It contains the following
information:
– Name of manufacturer;
– Homologation number (Stage 2);
– Vehicle type identification codes;
– Vehicle weights;
– Engine type;
– Bodywork version code.
GENERAL FEATURES
1.4 16V
Engine identification code 192B2000
Cycle Otto
Number and layout of cylinders 4 in line
Piston bore and stroke mm 72 × 80.4
Total displacement cc 1368
Compression ratio 11
LPG Petrol
EEC max. power kW 66 66
hp 90 90
at a speed of rpm 5500 5500
EEC max. torque Nm 128 128
kgm 13 13
at a speed of rpm 4500 4500
Spark plugs NGK DCPR7E-N-10
Fuel
LPGUnleaded
petrol
95 RON
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FIAT BRAVO LPG
IGNITION
Static advance, electronic, integrated with
the injection. LPG FUEL SYSTEM
Electronic injection with special LPG
injectors.
Type: timed sequential Multipoint.
Stoichiometric metering of the air/gas
mixture.
Engine idle speed:
750 ±50 rpm
The LPG injection system is controlled by
a dedicated control unit (connected to the
petrol unit) using the sensors already on
the car.
Modifications or repairs to
the fuel feed system that are
not carried out properly or do not
take the system technical specifica-
tions into account can cause mal-
functions leading to a risk of fire.
IMPORTANT
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