Fiat 1998 Marea Weekend, Service Manual

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Marea- Marea Weekend
©> Engine
99
update Fuel system
10.
Float valve
The float valve has the task of allowing the flow of vapours to the separator, without, however, allowing
the escape of liquid fuel.
The valve contains a float, the end of which closes the actual valve outlet port in the following conditions:
strong lateral acceleration (vehicle driving round a bend) or longitudinal acceleration- (vehicle braking)
with the relevant movement of the mass of fuel as a result of the inertia force;
vehicle overturning.
3N48GJ01 3N48GJ02 3N48GJ03
1. Normal operating conditions: valve open
2. The fuel pushes the float upwards as a result of strong acceleration: valve closed;
3. Vehicle overturned: valve closed.
Charcoal folter solenoid valve
This normally closed type valve, controls the
flow of vapours reaching the intake manifold,
being operated by the control unit in a duty-
cycle.
1. From the charcoal filter
2. To the intake manifold
3N49GJ03
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