RETURNLESS FUEL SYSTEM OPERATION [ZJ, Z6, LF]


B3E011400114T05
• Fuel in the fuel tank is pumped out through the fuel filter (low-pressure) by the fuel pump, filtered by the fuel filter (high-pressure), and then regulated to a specified pressure by the pressure regulator.
• The pressure regulated fuel is sent to the fuel injectors.
• After pressure regulation, unnecessary fuel is returned from the pressure regulator to inside the fuel pump unit.