Checking and replacing the fuel pressure regulator (Renault Logan 1)

The serviceability of the regulator is determined on a running engine by the fuel pressure in the injector rail (see "Checking the pressure in the engine fuel system"). If the pressure is below normal, and the other elements of the system are in good working order, the regulator is faulty. It must be replaced, as it is not repairable.

The fuel pressure regulator is installed in the fuel pump module.



1. Remove the fuel pump module (see "Replacing the fuel pump").



2. Disconnect the fuel level sensor wiring harness connector.



3. Squeeze the clips and remove the fuel pump assembly from the collection cup.





4. Remove the rubber sealing ring...



5. ... thrust washer...



6. ...and a spring.



7. Press the retainer and remove the fuel pressure regulator fitting from the seat in the module cover.





8. Press the lock and disconnect the ground wire.



9. Remove the fuel pressure regulator.

10. Install the parts in the reverse order of removal.