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FIAT PUNTO LPG
ELECTRONIC CONTROL
UNIT
The vehicle has a dedicted electronic con-
trol unit for the LPG system; it uses the
incoming signals from the petrol injection
control unit and converts them into sig-
nals for the injection of the LPG.
The control unit for the injectors has the
same strategy as the petrol control unit
(phased, sequential, multipoint).
LPG/PETROL SWITCH
The LPG/petrol switch fig. 7is located on
the protective fuse flap (left side of the
dashboard) 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 on-
ly comes on when the last green LED goes
out.
The red LED indicates the reserve con-
dition;
ON. LPG operating mode indicator:
green LED, located under button A, on
constantly;
OFF. petrol operating mode indicator:
yellow LED, located above button A, on
constantly.
IMPORTANT When the ignition key is
turned to the MARposition the LEDs on
the ignition switch come on in accordance
with the following logic:
– with the petrol operating mode se-
lected: yellow OFFLED on;
– with the LPG operating mode se-
lected: all the LEDs in the switch are on
constantly and the green ONLED is flash-
ing. To select the type of fuel system desired
(LPG or petrol), press the button A-fig.
7.
To change the type of fuel system, it is ad-
visable to operate the button with the ve-
hicle stationary and the engine running or
,whilst driving, after having released the
accelerator.
If the switching takes place during accel-
eration or pick-up, there may be a brief
flat spot (fall in power).
fig. 7F0M0478m
Do not switch between the
two operating modes whilst
starting the engine.
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15
FIAT PUNTO LPG
AT THE FILLING
STATION
LPG filler
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. 8, 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 adaptor over to the
qualified LPG refuelling personnel.
IMPORTANT Before refuelling with LPG,
the qualified personnel should make sure
that the adapator is correctly tightened
onto the filler fitting.
IMPORTANT Depending on the country,
there are two types of adaptors for refu-
elling pumps. The adaptor that comes with
the car in a special case is specifically de-
signed for the country in which the car is
sold. If you are in a different country, find
out what type of adapator is used there.
WHEELS
Wheel repair
The car does not have a spare wheel but
comes with a quick tyre repair kit known
as Fix&Go.
The kit is located on the left side of the
luggage compartment and is fastened by
velcro.
See the instructions in the booklet that
this supplement comes with.
The tool box fig. 9is located under the
driver’s seat and fastened by velcro.
FUSE REPLACEMENT
The LPG system components are pro-
tected by a 20A fuse F81 (power supply +
battery) installed, depending on the ver-
sion, near the battery or in the engine
compartment junction unit and a 5A fuse
F16 (power supply + ignition) in the en-
gine compartment junction unit.
For all the other fuses, consult the Own-
er Handbook that this supplement comes
with.
fig. 8F0M0479m
fig. 9F0M0480m
IMPORTANT Only use LPG for mo-
tor vehicles.
IMPORTANT Look after the LPG
adapator carefully so that it does not
get damamged.
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FIAT PUNTO LPG
LPG FUEL SYSTEM
Electronic injection with special LPG injec-
tors.
Type: Phased, sequential, multipoint.
Stoichiometric metering of the air/gas mix-
ture.
Engine idle speed:
700 ± 50 rpm
The LPG injection system is controlled by
a dedicated control unit (connected to the
petrol one) using the sensors already on
the car.
IGNITION
Static advance, electronic, integrated with
the injection.
PERFORMANCE
Top speed in km/h.
Running on petrol: 165
Running on LPG: 165
Modifications or repairs to
the fuel feed system that are
not carried out properly or do not
take the system’s technical specifica-
tions into account can cause mal-
functions leading to the risk of fire.
WARNING
INTRODUCTION 1.4
Engine identification code 350A1000
Cycle Otto
Number of cylinders and position 4 in line
Piston diameter and stroke mm 72 x 84
Total capacity cm31368
Compression ratio 11.1 : 1
LPG Petrol
kW 57 57
Max power CEE bhp 77 77
at a speed of rpm 6000 6000
Nm 115 115
Max torque CEE kgm 11.7 11.7
at a speed of rpm 3000 3000
Spark plugs NGK ZKR7A-10
Fuel
LPGGreen petrol
unleaded
95 RON
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