Fuel Manifold; Injectors - Fiat Bravo Service Manual

Bravo-Brava
ifpi
98 range
Copyright by Fiat Auto
16v
F U E L M A N I F O L D
The fuel manifold, w h i c h 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
I N J E C T O R S
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 w i n d i n g connected to the
id c m c i e o u i i / d i v v i i i u i n y
r»+/-*r
connector (3) terminals.
r*3\
tofmmale
When the current passes through the w i n d -
ing, the magnetic field w h i c h is created at-
tracts the shutter causing the opening of the
injector and the f l o w of fuel.
There are t w o 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.
E n g i n e
Fuel system
10.
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