torque FIAT IDEA 2008 1.G LPG Supplement Manual

4
FIAT IDEA 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 the phased, sequential multipoint type
with special injectors.LPG Multipoint injection system
This product is produced in strict collab-
oration with prestigious suppliers in the
LPG sector.
The injection system used on the car is an
efficient system in terms of engine per-
formance and is based on the injection of
LPG in a gaseous state.
In this four-injector system, one for each
intake manifold, the fuel is injected directly
into the engine heat transfer ducts there-
by metering the LPG very precisely im-
proving combustion and, at the same time,
excluding any possibility of flame return.
By adapting the electronic control tech-
nology of petrol engines to meet LPG
specifications, important results in terms
of driveability and controlling exhaust
emissions have been obtained.
Engines running on LPG have almost the
same torque/power specifications as when
running on petrol and, as a result, car per-
formance is also comparable. What is LPG?
LPG (the acronym for Liquefied Petrole-
um Gas) is a mixture of gas used as a safe
and economical 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 naturally present
in oil fields and methane-producing de-
posits.
In its natural state this mixture takes the
form of a gas, but as the pressure in-
creases, at room temperature, it can eas-
ily be turned into liquid.
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 IDEA 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: 163
Running on LPG: 163
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 fire risk.
WARNING
GENERAL FEATURES 1.4
Engine identification code 350A1000
Cycle Otto
Number and layout of cylinders 4 in line
Piston bore and stroke mm 72 x 84
Total displacement cm31368
Compression ratio 11.1 : 1
LPG Petrol
kW 57 57
Max. EEC power HP 77 77
at a speed of rpm 6000 6000
Nm 115 115
Max. EEC torque 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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