Checks: Low Pressure Fuel Supply Circuit - CITROEN C5 Handbook

CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines : RHY - RHS - RHZ
Engine : 4HX
Engines : RHY - RHS - RHZ - 4HX
[1] Ø 10 mm low pressure connector
[2] Ø 8 mm low pressure connector
[3] Pressure gauge for testing boost pressure
[4] Prolongateur
Connect the tool [1] between the booster pump and the fuel filter (white mark at "a" on the
fuel supply pipe).
Connect the tool [2] downstream of the diesel injectors, between the high pressure fuel
pump and the fuel filter (green mark at "b" on the fuel return pipe.
WARNING : Any check of pressure downstream of the fuel filter is PROHIBITED.
NOTE : To check the pressures while the vehicle is being driven, insert tool [4] between
tool [3] and tools [1] et [2].
Checks on pressure : static.
- Switch on ignition
- For 3 seconds (normal functioning):
- Fuel supply pressure shown by the pressure gauge [3] = 2.6 ± 0.4 Bar.
- Fuel return pressure shown by the pressure gauge [3] = 0.6 ± 0.4 Bar.
B1BP20JD B1BP27BD
105
C5 - All Types
TOOLS
: 4215-T.
: 4218 -T.
: 4073-T
: 4251-T.
Kit 4073-T