Get Injection -> Checks: Low Pressure Fuel Supply Circuit Guide for Citroen C6 4 Door First Generation (2005-2012)

CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT

Engine: DT17BTED4

Tools.

[1] Ø 10 mm low pressure connector

[2] Ø 8 mm low pressure connector

[3] Pressure gauge for testing boost pressure

[4] Extension

: 4215-T

: 4218-T

: 4073-T

: 4251-T

Kit 4073-T

Checks.

IMPERATIVE : Respect the safety and cleanliness requirements specific to high pressure

diesel injection (HDi) engines.

Connect the tool [1] between the booster pump and the fuel filter (white mark 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 on the fuel return pipe.

Connect the tool [3] on tool [1] or on tool [2].

WARNING: Any check of pressure downstream of the fuel filter is prohibited.

NOTE: To check the pressures while the vehicle is being driven, insert the extension [4] between

tool [3] and tools [1] or [2].

B1BP3CRD

CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT

Engine: DT17BTED4

Checks on pressure: static.

Switch on the ignition.

For 3 seconds (normal functioning):

- Fuel supply pressure shown by the pressure gauge [3] = 1.1 0.4 bar.

- Fuel return pressure shown by the pressure gauge [3] = 2 0.5 bar.

Abnormal functioning:

Fuel supply

pressure

Fuel return

pressure

Checks

Between 2 and 3 bar

More than 3 bar

0.8 0.4 bar

Check the condition of the diesel fuel filter

More than 0.8 bar

Check the fuel return circuit (pipe pinched)

Between

Check the fuel suppy circuit :

Less than 0.8 bar

0.3 and 0.5 bar

Booster pump (low pressure), piping

Impossible to start the engine:

- Fuel supply pressure less than 0.3 bar.

B1BP3CRD

Injection -> Checks: Low Pressure Fuel Supply Circuit for Your Citroen C6 4 Door First Generation (2005-2012)

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