2004 Citroen C3 diesel

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INJECTION
PROHIBITED OPERATIONS: HDi DIRECT INJECTION SYSTEM
Engines: RHY RHZ
XSARA PICASSO
Cleaning.
The use of high pressure cleaners is prohibited.
Do not use compressed air.
Fuel supply circuit.
Required fuel: diesel.WARNING:Do not use other fuels.
Electric circuit.
Swapping injection ECUs between two vehicles will render it impossible to start either vehicle.
It is forbidden to supply a diesel injector with
12 volts.
High pressure fuel pump.
Do not separate the following components from the high pressure fuel pump (5):
High pressure fuel pump third piston deactivator (3)(no replacement parts).
High pressure fuel regulator (4)(no replacement parts).
Sealing ring (1)(no replacement parts).
High pressure outlet connector (3)(will cause a malfunction).
PS:HDi = High pressure Diesel injection
B1HP12CC

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INJECTION
PROHIBITED OPERATIONS: HDi DIRECT INJECTION SYSTEM
Engines: RHY RHZ
XSARA PICASSO
High pressure fuel injection common rail. Do not separate the connectors (7)from the common injection rail (6)(malfunction).
Diesel injectors.
WARNING:Diesel and ultrasonic cleaners are prohibited.
Do not separate the following components from the diesel injector carrier (9):
Diesel injector (8)(no replacement parts).
Electromagnetic element (11)(destruction).
Do not alter the position of the nut (10)(malfunction).
Do not separate the connector (12)from a diesel injector.
It is forbidden to clean the carbon deposits from the diesel injector nozzle.
Identification: Injector carrier
There are two types of diesel injector carrier classed according to fuel flow.
Identification by engraving or paint mark
B1HP12EC
B1HP12DC
B1HP16PC
IMPERATIVE: When replacing a
diesel injector carrier, order a
component of the same class.
(See repair manual)
Identification markings:
«a»:Supplier identification.
«b»:PSA identification number.
«c»:Class identification.
Injector carrier
Class 1
Class 2
Engraving
1
2
Paint mark
Blue
Green
Location
On the upper part of the
coil near to the fuel return
aperture

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INJECTION
SPECIFICATIONS OF THE DELPHI DIESEL INJECTION PUMP
PUMP TYPE REFERENCE
Dépollution
EquipmentL3
Transponder
XSARA
XSARA
8B
DWWJYDWLP 12
R8448 B
371 B

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INJECTION
SPECIFICATIONS OF THE DELPHI DIESEL INJECTION PUMP XSARA
Engine
typePump
Type
ReferenceStatic timing
Initial advance
Compression
Time
(cylinder N° 4)Dynamic
timing
checking
(at idle)Reference
InjectorInjector
holder
+ injectorCode
colourInjector
needle lift
pressure
(Bar)Adjustments (rpm) Max. speed
Fast
idlingAntistall
IdlingUnladen
rpmLaden
rpm
WJYDWLP 12
R 8448 B/*RDNO
SDC
6903LDCR
0260
IAA135,5
±5950
±25875
±25875
±255350
± 125
Engine
TDC
Pegging hole.
Value «X»
engraved on
the pump.
(*) = See table page: 251.1500
+ 3
mm
shim

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INJECTION
CHECKING AND SETTING THE DELPHI MECHANICAL INJECTION PUMP
Engine: WJY (continued)
Peg:
The camshaft hub, using tool [2].
The injection pump hub, using tool [3].
Impossible to peg the camshaft.Reset the valve timing (See page 245).
Possible to peg the camshaft, but not the injection pump.Carry out the following operations:
Loosen the screws of the injection pump hub.
Turn the injection pump hub.
Insert the peg
[3]into the setting hole.
Tighten the screws of the injection pump hub.Tighten to 2,3 ±0,2 m.daN.
ESSENTIAL:If setting the diesel injection pump proves impossible, reset the valve
timing.(See page 251)
Remove:
The tools [1], [2]and [3].
The screw (6)and the washer.
Reassemble the components.
B1EP12WDB1BP1S9C
XSARA

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INJECTION
FITTING DELPHI DIESEL INJECTORS
Engine: WJY
B1DP158CB1HP12VCB1HP0YGC
Fitting an injector.
The copper seal (1)and the
fire seal washer (3)are to be
replaced each time they are
removed.
NOTE:Fitting parts of diffe
rent makes is PROHIBITED.
WARNING:Ensure that the
fire seal washer (3)is fitted
the right way round.
Tighten the injector holder
on the cylinder head to:
9 m.daN
[1] Tool to remove/refit injectors: 7007T
[2] : 7008T.A Tool kit 4123T
(3)Tighten lightly to prevent any distortion.
XSARA

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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: 8HX 8HW
Tools.
[1] Ø 10 mmlow pressure connector: 4215T.
[2]Pressure gauge for testing boost pressure: 4073T.A Tool kit 4073T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
Link tools [1]and [2]in series between the fuel high pressure pump and the fuel filter.
ESSENTIAL:Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum Observations
10 ±5 cmHg
Engine driven by the starter motor
20 ±5 cmHg
60 ±5 cmHgEngine running under full load
Supply circuit obstructed
(full tank
strainer, piping, fuel filter).
B1BP2NWC
C2 C3

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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: 8HV 8HY 9HZ 9HY
Tools.
[1] Ø 10 mmlow pressure connector: 4215T.
[2]Pressure gauge for testing boost pressure: 4073T.A Tool kit 4073T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump
and the fuel filter at «a»and «b».
WARNING:Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
ESSENTIAL: Check that the tool [2] is clean.
Check the negative pressure according to the table below:
VacuumObservations
10 ±05 cmhg
Engine driven by the starter motor
20 ± 20 cmhg
60 ± 05 cmhgEngine running under full load
Supply circuit obstructed
(full tank
strainer, piping, fuel filter).B1BP2PHC
C3 XSARA PICASSO