13A-1
FUEL SUPPLY
Fuel circuit: Operating diagram
K4M
13A
Operating diagram of the fuel supply circuit ( « pump - sender - fuel filter » assembly)
The fuel supply circuit does not have a return.
The fuel pressure does not vary with engine load.
The circuit comprises:
-a rail (1) without a return pipe and without a supply
pressure regulator,
-a single pipe (2) coming from the tank,
-a « pump-sender-fuel filter » assembly fitted with the
pressure regulator (3) , the pump (4) and the fuel filter
(5) (all located in the tank),
-a fuel vapour recirculation tank (6) .
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