Fiat 1996 Brava Service Manual page 284

Bravo-Brava lopi
98 range
16v
Engine
Fuel system
10.
FUEL MANIFOLD
The fuel manifold, which has the task of dis­
tributing the fuel to the injectors, is made
from die-cast aluminium and incorporates
the housings for the injectors and the air
bleed valve.
The fuel inlet has a rapid attachment. Since
the system is the returnless type, there is no
recirculation pipe.
1. Fuel manifold
2. Injectors
3. Fuel supply connector
4. Bleed valve
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INJECTORS
The injectors have the task of supplying the
amount of fuel required for the operation of
the engine: the fuel is injected into the inlet
duct, immediately upstream of the inlet valve.
The injectors are the top-feed type and there
is an electrical winding connected to the
connector (3) terminals.
When the current passes through the wind­
ing, the magnetic field which is created at­
tracts the shutter causing the opening of the
injector and the flow of fuel.
There are two seals on the fuel manifold side
(1) and the inlet manifold side (2).
A reference (4) determines the angular posi­
tion of the injector and the correct position of
the jets in relation to the inlet valves.
Wiring connector
The injector resistance can be measured by
disconnecting the connector and connecting
an ohmmeter as shown in the diagram.
Resistance value: 14.5±5% ohm.
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