INJECTION for Your Citroen Xantia 4 Door Second Generation (1993-2002)

XANTIA - XM - SYNERGIE  
IDLING - ANTI-POLLUTION  
% Content  
Idling speed (± 50 rpm)  
Emission  
standard  
Vehicles  
Engine type  
Make - Injection type  
Auto. Gbox : N  
CO  
CO2  
Manual  
gear engaged  
gearbox  
1.6 i  
1.8 i  
BFZ  
LFX  
M. MARELLI 8P13  
M. MARELLI 1AP20  
SAGEM SL96 (Manual)/  
BOSCH MP7.2 (Automatic)  
L3  
1.8 i 16V  
LFY  
LFY  
850  
800  
XANTIA  
1.8 i 16V  
Dual fuel  
SAGEM SL96 (Petrol)/  
NEKAM KOLTEC (LPG)  
1.8 i 16V  
2.0 i 16V  
3.0 i V6  
LFY  
RFV  
XFZ  
RFV  
RGX  
XFZ  
RFN  
L4  
L3  
BOSCH MP7.3  
BOSCH MP5.2  
BOSCH MP7.0  
BOSCH MP5.2  
BOSCH MP3.2  
BOSCH MP7.0  
M. MARELLI 48P2  
< 0.5  
> 9  
800  
650 *  
650  
800  
2.0 i 16V  
2.0 i Turbo CT  
3.0 i V6  
800  
XM  
650 (*)  
800  
650  
SYNERGIE  
2.0 i 16V  
IF L5  
< 0.5  
> 9  
Variable speed depending on : Battery voltage, parking manoeuvre, temperature.  
*
127  
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PETROL INJECTION  
XANTIA  
XANTIA  
1.8 i 16 V  
Dual fuel  
1.6 i  
1.8 i  
1.8 i 16 V  
2.0 i 16 V  
3.0 i V6  
Engine type  
BFZ  
LFX  
LFY  
LFY  
RFV  
XFZ  
Emission standard  
L3  
3
L4  
L3  
Make  
Injection type  
M. MARLELLI M. MARELLI  
SAGEM  
SL96  
BOSCH  
MP 7.3  
BOSCH  
MP5.2  
BOSCH  
MP7.0  
8P13  
1AP20  
Fuel pressure (bars)  
2.5  
/
3
3
M. MARELLI  
Overspeed cut-off (rpm)  
6 300  
6400  
6500  
6500  
6530  
6520  
1AP40  
Injection cut-in during  
deceleration (rpm)  
1 500  
16  
1400  
14.5  
1500  
16  
3
1500  
14.5  
1200  
14.5  
1100  
12  
Résistance injecteurs (en ohms)  
6 500  
Engine coolant temperature  
sensor resistive value (ohms)  
3800 at 10° C  
2 500 at 20° C  
Stepper motor : 53  
800 at 50° C  
230 at 90° C  
Idling actuator or stepper  
motor resistive value (ohms)  
Air temperature sensor  
resistive value (ohms)  
3800 at 10° C  
2 500 at 20° C  
128  
800 at 50° C  
230 at 90° C  
manuals search engine  
PETROL INJECTION  
XM - SYNERGIE  
XM  
SYNERGIE  
2.0 i 16 V  
2.0 i Turbo CT  
3.0 i V6  
2.0 i 16 V  
Engine type  
RFV  
RGX  
XFZ  
RFN  
Emission standard  
L3  
IF L5  
Make  
Injection type  
BOSCH  
MP5.2  
BOSCH  
MP3.2  
BOSCH  
MP7.0  
M. MARELLI  
48P2  
Fuel pressure (bars)  
3
Overspeed cut-off (rpm)  
6 530  
6 400  
6 520  
Injection cut-in during  
deceleration (rpm)  
1 200  
14.5  
1 400  
16  
1 100  
12  
Injector resistive value (ohms)  
Engine coolant temperature  
sensor resistive value (ohms  
3 800 at 10°C  
Stepper motor : 53  
3 800 at 10°C  
2 500 at 20° C  
800 at 50°C  
230 at 90° C  
Idling actuator or stepper  
motor resistive value (ohms)  
E.V. : 22  
E.V. : 11  
Stepper motor : 53  
230 at 90° C  
Air temperature sensor  
resistive value (ohms)  
2 500 at 20° C  
129  
800 at 50°C  
manuals search engine  
ALL TYPES  
ANTI-POLLUTION TECHNICAL CHECKS (FRANCE)  
-1  
All Types Petrol CO Corrected (In %)  
All Types Diesel (m  
)
Conditions : At idle, engine warm.  
Features :  
# 01/96  
Xantia, MMDCM injection on 1.6i (BFZ) engine, 1.8i (LFZ)  
engine and 2.0i (RFX) engine.  
Should the check reveal excessive CO, make sure that the  
ECU channel 25 is not connected to earth in error.  
Less than 4.5 % for vehicles registered before 10/86.  
Less than 3.5 % for vehicles registered after 10/86.  
With catalytic converter  
Greater than 2.0i 89 M.Y.  
(See Info-rapid N° 77)  
All Types  
93 M.Y.  
CO less than 0.5 % at idle speed.  
CO less than 0.3 % at fast idle speed between 2500 and 3000 rpm (*)  
01/96 #  
(*) Except :  
Atmospheric engine.  
TU5 JP  
XU5JP  
XU7JP  
: 2200 rpm ± 100.  
-1  
: 1500 rpm or 3100 rpm (± 100).  
: 1500 rpm or 3100 rpm (± 100).  
Less than 2.5 m  
Turbocharged engine.  
NOTE : On XU5JP and XU7JP engines at 1500 rpm, the check should be carried out  
with main beams, rear heated screen and cabin ventilation switched on and with the  
front wheels on maximum lock (if the vhicle has power-assisted steering).  
-1  
Less than 3.0 m  
Lambda Probe value 0.97 to 1.03.  
130  
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EMISSION STANDARDS  
ALL TYPES  
APPLICATION  
NOTES  
STANDARD  
PSA  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
A-S  
RP  
Brussels directive  
83/351  
except special  
derogations for certain  
private vehicles  
cyl. > 2 litres  
Private vehicles :  
> 2 litres  
• new cyl. < 2 litres  
• existing cyl. < 2 litres  
06/89  
06/92  
12/92  
K
K’  
15.04  
15.04  
Petrol  
Diesel  
ECE  
R 15.04  
Utility vehicle limits  
= private vehicle  
limits increased  
by 25 %  
For private vehicles  
and utility vehicles  
in major export  
With oxygen sensor,  
without catalytic converter  
Utility vehicles :  
All Types  
10/89  
imminent  
Private vehicles :  
> 2 litres  
• new models  
• existing models  
Brussels directive 88/76  
01/10/88 ꢀꢀ " Luxembourg Accords "  
01/10/89 ꢀꢀ ꢀReplaced by 89/458  
+ 91/441  
ECE  
R 15.05  
W vp 15.05  
Petrol  
131  
manuals search engine  
ALL TYPES  
EMISSION STANDARDS  
APPLICATION  
NOTES  
STANDARD  
PSA  
A-S  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
RP  
Brussels directives 88/76  
and 88/436  
Utility vehicle limits  
private vehicle limits of  
Brussels directive 88/436  
7 classes of limits by  
vehicle weight  
Utility vehicles :  
All Types  
01/10/88 ꢀꢀ  
01/10/89 ꢀꢀ  
10/94  
ECE  
R 15.05  
Petrol  
Diesel  
W vu 15.05  
• new models  
• existing models  
Private vehicles :  
With oxygen sensor  
and catalytic converter  
for petrol vehicles  
Petrol  
Diesel  
• certain non-EEC  
Z
US 83  
US 83  
Current  
132  
Adoption of the U.S.  
European countries  
• certain Export countries  
manuals search engine  
EMISSION STANDARDS  
ALL TYPES  
APPLICATION  
NOTES  
STANDARD  
PSA  
CHARACTERISTICS  
E.E.C.  
US 87  
Engines  
Vehicles  
Applicable  
A-S  
RP  
Private vehicles :  
• certain non-EEC  
With catalytic converter  
and EGR  
Current  
Current  
Current  
Adoption of the U.S.  
standard  
Y
US 87  
Diesel  
European countries  
• certain Export countries  
Petrol  
Diesel  
Private vehicles :  
US 93  
Y2  
X1  
US 93  
US 84  
Adoption of the U.S.  
standard  
• certain Export countries  
Utility vehicles :  
US 84  
LDT  
Petrol  
Diesel  
• certain non-EEC  
European countries  
• certain Export countries  
Adoption of the U.S.  
standard for light utility vehicles  
Utility vehicles :  
Petrol  
Diesel  
US 87  
LDT  
• certain non-EEC  
European countries  
• certain Export countries  
Adoption of the U.S.  
standard for light utility vehicles  
X2  
US 87  
Current  
133  
manuals search engine  
ALL TYPES  
EMISSION STANDARDS  
APPLICATION  
NOTES  
STANDARD  
PSA  
A-S  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
RP  
Private vehicles :  
• certain non-EEC  
Adoption of the U.S.  
standard for light utility vehicles  
Petrol  
Diesel  
US 90  
LDT  
Current  
X3  
US 90  
European countries  
• certain Export countries  
Private vehicles :  
< 1.4 litres  
Brussels directive  
89/458  
EURO 1  
07/92 ꢀꢀ  
01/07/93  
CEE  
19.5  
Petrol  
Diesel  
• new models  
• existing models  
L1  
( EURO  
93)  
31/12/94 Possible alternative to emission  
standard L from 1992 to 1994  
CEE  
19.5  
Petrol  
Diesel  
Private vehicles :  
All Types  
With oxygen sensor  
and catalytic converter  
for petrol vehicles.  
catalytic  
07/92 ꢀꢀ  
01/93 ꢀꢀ EU Brussels Directive 93/59  
01/96  
01/97  
EURO 1  
L
• new models  
• existing models  
• new models  
• existing models  
(91/441)With  
( EURO  
93)  
and EGR for diesel  
vehicles.  
134  
manuals search engine  
EMISSION STANDARDS  
ALL TYPES  
APPLICATION  
NOTES  
STANDARD  
PSA  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
A-S  
RP  
Utility vehicles :  
< 3.5 tonnes  
• new models  
• existing models  
Class 1 :  
01/10/93 ꢀꢀ  
01/10/94 ꢀꢀ  
With oxygen sensor  
and catalytic converter  
for petrol vehicles  
Brussels directive 93/59  
3 classes depending on  
vehicle weight :  
EURO 1  
CEE  
W2  
Petrol  
Diesel  
W2  
(EURO  
93)  
• new models  
• existing models  
Class 2/3 :  
01/97  
10/97  
Class 1 < 1250 kg  
Class 2 : 1250/1700 kg  
Class 3 > 1700 kg  
• new models  
• existing models  
01/98  
10/98  
With oxygen sensor and  
reinforced catalytic  
converter for petrol  
vehicles. With catalytic  
converter and EGR for  
diesel vehicles.  
Private vehicles :  
< 6 seats and  
< 2.5 tonnes  
EURO2  
Brussels directive 94/12  
CEE  
95  
Petrol  
Diesel  
01/96 ꢀ  
01/97 ꢀ  
L3  
EURO 93 standard made  
stricter  
(EURO  
96)  
• new models  
• existing models  
135  
manuals search engine  
EMISSION STANDARDS  
ALL TYPES  
APPLICATION  
NOTES  
STANDARD  
PSA  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
A-S  
RP  
Utility vehicles :  
< 3.5 tonnes  
Class 1 :  
Brussels directive 96/69  
With oxygen sensor and  
reinforced catalytic  
converter for petrol  
vehicles. With catalytic  
converter and EGR for  
diesel vehicles.  
3 classes depending on  
EURO 2  
Petrol  
Diesel  
Gas  
CEE  
95  
• new models  
• existing models  
Class 2/3 :  
01/97 vehicle weight :  
10/97 Class 1 < 1250 kg  
Class 2 : 1250/1700 kg  
W3  
(EURO  
96)  
• new models  
• existing models  
01/98 Class 2 : 1 700 kg  
10/98 ꢀ  
With 2 oxygen sensors  
and catalytic converter for  
petrol vehicles.  
With catalytic converter  
and EGR for diesel  
vehicles.With EOBD  
on-board diagnosis.  
Petrol  
Diesel  
Gas  
01/2000  
01/2001  
Brussels directive 98/69  
EURO 2 standard (L3)  
made stricter  
Fiscal incentives  
EURO 3  
Private vehicles :  
All Types  
• new models  
• existing models  
CEE  
2000  
L4  
(EURO  
2000)  
136  
manuals search engine  
ALL TYPES  
EMISSION STANDARDS  
APPLICATION  
NOTES  
STANDARD  
PSA  
CHARACTERISTICS  
E.E.C.  
Engines  
Vehicles  
Applicable  
A-S  
RP  
Utility vehicles :  
< 3.5 tonnes  
Class 1 :  
Brussels directive 98/69  
EURO 2 standard (L3  
made stricter  
With 2 oxygen sensors  
and catalytic converter  
for petrol vehicles.  
With catalytic converter  
and EGR for diesel  
vehicles.  
EURO 3  
Petrol  
Diesel  
Gas  
• new models  
• existing models  
Class 2/3 :  
01/2000 Fiscal incentives  
01/2001 3 classes depending on  
vehicle weight :  
W3  
(EURO  
2000)  
• new models  
• existing models  
01/2001 Class 1 < 1305 kg  
01/2002 Class 2 : 1305/1760 kg  
Class 2 : 1760 kg  
With EOBD on-board  
diagnosis.  
Private vehicles :  
All Types  
Brussels directive 98/69  
With 2 oxygen sensors  
and catalytic converter  
for petrol vehicles.  
EURO 3 standard (L4) )  
• new models  
01/2001  
01/2003  
made stricter  
IF/ L5  
EOBD  
Petrol  
EURO 4  
• existing models  
diagnostic embarqué  
Fiscal incentives  
With EOBD on-board  
diagnosis.  
137  
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SAFETY REQUIREMENTS : PETROL/LPG DUAL FUEL SYSTEM  
ESSENTIAL : Special precautions should be taken when dealing with gas powered systems  
SAFETY REQUIREMENTS.  
Only personnel who have been specially trained to work with petrol/LPG DUAL FUEL vehicles are authorised to carry out repairs to the  
DUAL FUEL system.  
- Ensure that these qualified personnel are provided with acrylic-free overalls (risk of static electricity).  
In the event of a major gas leak  
- Isolate the vehicle in the open air, away from any buildings.  
- Call the emergency services (police and fire brigade) should the situation get out of hand.  
138  
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SAFETY REQUIREMENTS : PETROL/LPG DUAL FUEL SYSTEM  
ALL TYPES  
PRECAUTIONS TO BE TAKEN BEFORE CARRYING OUT ANY REPAIR WORK  
Any work on a gas powered vehicle must be carried out in a ventilated  
area.  
Disconnect the battery negative terminal.  
Ensure the vehicle is connected to earth.  
Before removing the fuel tank or working on the gas circuit located  
downstream of the safety electrovalve (on the gauge valve), perform  
the following operations :  
- Close the safety electrovalve.  
- Switch the engine to use gas.  
Ensure the vehicle is kept away from the following hazards :  
- Wait for the engine to stop due to lack of fuel.  
- Sparks.  
- Flames.  
- Slow combustion (lit cigarette).  
After each operation, check that the circuit is sealed using one of the  
following systems :  
Drain the fuel tank using "flare" type material (following the  
instructions for this material) before performing one of the following  
operations :  
- Electronic detector .  
- Soapy water.  
- Any other leak detection product.  
- Remove the gauge valve.  
- Working on the fuel tank.  
Remove the fuel tank when the vehicle is to be subject to high tempe-  
ratures (above 50oC) (spray booth).  
Do not clean the engine compartment with a high pressure device and  
do not use detergents.  
139  
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SPECIFICATIONS : PETROL/LPG DUAL FUEL SYSTEM  
ALL TYPES  
B1HPOQ4P  
B1HPOQ5P  
140  
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ALL TYPES  
SPECIFICATIONS : PETROL/LPG DUAL FUEL SYSTEM  
1) Fuel tank  
6) Injectors and valves.  
- Capacity : 70 litres.  
- Location : in the engine compartment, under the air manifold.  
- Max. pressure : during tests / in operation : 30 bars / 20 bars.  
- Max. operating temperature : 50°C.  
7) Pressure sensor.  
- Location : in the boot.  
- Ssupply voltage : 5 volts.  
- Location : on the evaporator control valve support.  
2) Fuel gauge  
- Supply voltage : 12 volts.  
8) Temperature sensor 15°C.  
- Resistance : 0 to 15 ohms empty, 280 to 315 ohms full.  
- Location : on the gauge valve.  
- Location : on the control valve reheating circuit.  
9) LPG filter.  
3) LPG gauge valve.  
- Type : paper.  
- Location : on the fuel tank.  
- Replacement intervals: every 37,500 miles.  
- Location : on the evaporator control valve inlet union.  
4) Safety electrovalve.  
- Supply voltage : 12 volts.  
- Power : 8W.  
- resistance : 18 ohms.  
- Location : on the gauge valve.  
10) Supply electrovalve.  
- Supply voltage : 12 volts.  
- Power : 8W.  
- Resistance : 18 ohms.  
- Location : on the evaporator control valve inlet union.  
5) Filler orifice with safety valve.  
- Location : on the rear right wing.  
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ALL TYPES  
SPECIFICATIONS : PETROL/LPG DUAL FUEL SYSTEM  
11) Evaporator control valve.  
- Make : NECAM.  
- Typt : MEGA.  
Setting pressure - 2nd stage.  
- Setting pressure for a new evaporator control valve :  
- 970 ± 10 mb  
- Setting pressure for a used evaporator control valve :  
ESSENTIAL :  
- 960 ± 10 mb  
Before checking and setting the pressure, it is essential that you  
read through and follow closely BROCHURE : BRE 0332.  
12) Stepper motor  
- Location : on the distributor.  
Setting pressure - 1st stage.  
13) Distributor.  
- Location : on the evaporator control valve support.  
- Pression de réglage vaporisateur-détendeur neuf :  
1450 ± 50 mb.  
14) Distributor electrovalve.  
- Supply voltage : 12 volts.  
- Resistance : 25 ohms.  
- Pression de réglage vaporisateur-détendeur ayant déjto servi :  
1400 ± 50 mb.  
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XANTIA - SYNERGIE  
PROHIBITED OPERATIONS: HDI DIRECT INJECTION SYSTEM  
Engines : RHZ - RHY  
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 regulateur (4) (no replacement parts).  
- Sealing ring (1) (no replacement parts).  
- High pressure outlet connector (3) (will cause a malfunction).  
B1HP12CC  
143  
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PROHIBITED OPERATIONS: HDI DIRECT INJECTION SYSTEM  
XANTIA - SYNERGIE  
Engines : RHZ - RHY  
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.  
B1HP12DC  
There are 2 types of diesel injector carrier classed according to fuel flow.  
Identification by engraving or paint mark  
Injector carrier Engraving  
Paint mark  
Location  
Blue  
On the upper part of the  
coil near to the fuel return  
aperture  
Class 1  
Class 2  
1
2
Green  
Identification markings:  
IMPERATIVE: When replacing a die-  
sel injector carrier, order a compo-  
nent of the same class.  
- "a" : Supplier identification.  
- "b" : PSA identification number.  
- "c" : Class identification.  
(See repair manual).  
B1HP12EC  
B1HP16PC  
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SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM  
XANTIA - SYNERGIE  
Engines : RHZ - RHY  
SAFETY REQUIREMENTS  
Preamble.  
All interventions on the injection system must be carried out to conform with the following requirements and regulations :  
- Competent health authorities.  
- Accident prevention.  
- Environmental protection.  
WARNING : Repairs must be carried out by specialised personnel informed of the safety requirements and of the precautions to be taken.  
Safety requirements.  
IMPERATIVE : Take into account the very high pressures in the high pressure fuel circuit (1350 bars), and respect the requirements below :  
- No smoking in proximity to the high pressure circuit when work is being carried out.  
- Avoid working close to flame or sparks.  
Engine running :  
- Do not work on the high pressure fuel circuit.  
- Always stay clear of the trajectory of any possible jet of fuel, which could cause serious injuries.  
- Do not place your hand close to any leak in the high pressure fuel circuit.  
After the engine has stopped, wait 30 seconds before any intervention.  
NOTE : This waiting time is necessary in order to allow the high pressure fuel circuit to return to atmospheric pressure.  
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SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM  
XANTIA - SYNERGIE  
Engines : RHZ - RHY  
CLEANLINESS REQUIREMENTS.  
Preliminary operations  
IMPERATIVE : The technician should wear clean overalls.  
Before working on the injection system, it may be necessary to clean the apertures of the following sensitive components : (refer to corresponding  
procedures).  
- Fuel filter.- High pressure fuel pump.  
- High pressure fuel injection common rail.  
- High pressure fuel pipes.  
- Diesel injector carriers.  
IMPERATIVE : After dismantling, immediately block the apertures of the sensitive components with plugs, to avoid the entry of impurities.  
Work area.  
- The work area must be clean and free of clutter.  
- Components being worked on must be protected from dust contamination.  
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CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT  
XANTIA - SYNERGIE  
Engines : RHZ - RHY  
TOOLS  
[1] Ø 10 mm low pressure connector  
[2] Ø 8 mm low pressure connector  
[3] Pressure gauge for testing boost pressure  
: 4215-T  
: 4218-T  
: 4073-T  
Kit 4073-T  
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.Checks on pressure : static.  
- Switch on ignition  
For 3 seconds (normal functioning) :  
- Fuel supply pressure shown by the pressure gauge [3] = 1.8 ± 0.4 Bar.  
- Fuel return pressure shown by the pressure gauge [3] = 0.5 ± 0.4 Bar.  
B1BP1TWD  
147  
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CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT  
XANTIA - SYNERGIE  
Engines : RHZ - RHY (continued)  
Checks on pressure : dynamic.  
Engine running, at idle (normal functioning):  
- Fuel supply pressure shown by the pressure gauge [3] = 2 ± 0.4 Bar.  
- Fuel return pressure shown by the pressure gauge [3] = 0.7 ± 0.4 Bar.  
Abnormal functioning  
Fuel supply pressure  
Fuel return pressure  
Checks  
Between 3 and 3.5 Bar  
0.7 ± 0.2 Bar  
Check the condition of the diesel filter  
Check the low pressure regulator incorporated in  
More than 3.5 Bar  
More than 3.5 Bar  
Less than 0.7 Bar  
More than 0.7 Bar  
Less than 0.7 Bar  
the filter (locked shut) : replace.  
Check the fuel return circuit (pipe pinched or trapped...).  
Check the fuel suppy circuit :  
- Booster pump (low pressure), piping.  
Between 0.8 and 1.5 Bar  
Impossible to start the engine :  
Check : diesel injector return flow. (Table below)  
Fuel supply pressure less than 0.8 Bar :  
- Check the low pressure regulator incorporated in the filter (locked open).  
- Check the high pressure pump distribution valve (locked shut).  
Uncouple the diesel injector return pipe.  
Check :  
The flow should be drop by drop.  
Excessive fuel return.  
Observe :  
Diesel injector functioning correctly.  
Diesel injector locked shut.  
148  
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CHECKS : AIR SUPPLY CIRCUIT  
XANTIA - SYNERGIE  
Engines : RHZ - RHY  
TOOLS  
[1] Manual vacuum pump  
: FACOMM DA 16.  
IMPERATIVE : Respect the safety and cleanliness requirements.  
Vacuum pump.  
- Connect the tool [1] on the vacuum pump (1).  
- Start the engine.  
- Pressure should be 0.8 bar at 780 rpm.  
Boost pressure regulator electrovalve.  
- Connect the tool [1] between the electrovalve (2) and the valve (3) of the boost pressure  
regulator.  
Compare readings with the values in the table below.  
Engine speed (rpm)  
Pressure (Bar)  
780  
0.6  
4000  
0.25  
Pressure regulator valve.  
- Connect the tool [1] on the valve (3).  
- Appy a pressure of 0.5 bar to activate the rod "a" :  
- Rod "a" should be moved 12 mm.  
B1HP12FD  
149  
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XANTIA - SYNERGIE  
CHECKS : TURBO PRESSURE  
Engine : RHZ  
TOOLS  
[1] Pressure gauge for checking boost pressure  
[2] Sleeve for checking boost pressure  
[3] Adaptor sleeve  
: 4073-T.A Kit 4073-T  
: 4185-T  
: 4229-T  
Checks.  
IMPERATIVE : respect the following checking requirements : Engine at running tem-  
perature. Vehicle in running order at full load.  
Preparation.  
- Remove the collar fixing (3).  
C5FP06RC  
- Insert the tool [2] connected with tool [3], between the pipe (1) and the duct (2).  
- Position tool [1] in the vehicle.  
- Connect the sleeve [2] to the tool [1] with its tube "a".  
Procedure.  
- Start the engine.  
- Engage first gear and start the engine.  
- Engage the gears up to third gear.  
- Decelerate to 1000 rpm.  
- Accelerate hard, and check the pressure : 0.6 ± 0.05 Bar (1500 rpm).  
- Accelerate freely in kick-down, (changing from fourth to third gear).  
- Check the pressure : 0.95 ± 0.05 Bar (between 2500 and 3500 rpm).  
- Remove the tools, reposition the pipe (1) and refit the collar (3).  
B1HP12JD  
150  
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CHECKS : TURBO PRESSURE  
XANTIA  
Engine : RHY  
TOOLS  
[1] Pressure gauge for checking boost pressure  
[2] Sleeve for checking boost pressure  
: 4073-T.A Kit 4073-T  
: 4185-T  
Checks.  
IMPERATIVE : respect the following checking requirements : Engine at running tem-  
perature. Vehicle running at full load.  
Preparation.  
- Remove the collar (3) and the sleeve.  
- Insert the tool [2] between the pipe (1) and the duct (2).  
- Position tool [1] in the vehicle.  
C5FP06RC  
- Connect the pressure gauge [1] to the tool [2] with its tube "a" long enough for the gauge  
to be positioned inside the vehicle.  
Procedure.  
- Start the engine.  
- Engage first gear and start the engine.  
- Engage the gears up to third gear.  
- Decelerate to 2000 rpm.  
- Gradually accelerate.  
- Check the pressure : 0.95 ± 0.05 Bar.  
- Remove the tools.  
B1BP20MC  
151  
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XANTIA - SYNERGIE  
CHECKS : EXHAUST GASES RECYCLING CIRCUIT  
Engines : RHZ - RHY  
TOOLS  
[1] ] Manual vacuum pump  
: FACOMM DA 16.  
IMPERATIVE : Respect the safety and cleanliness requirements.  
EGR valve  
- Connect the tool [1] to the capsule union (1).  
- Apply, several times in succession, a vacuum of approx. 0.6 bar to activate the rod "a".  
- In abrupt reaction to the vacuum, the valve should close on its seating with a clicking noise.  
Exhaust gas reycling (EGR) electrovalve.  
- Check, not under load, between the electrovalve (2) and the EGR valve (1).  
- Connect the tool [1] between the electrovalve (2) and the capsule (1).  
- Compare readings with the values in the table below.  
Engine speed (rpm)  
Pressure (Bar)  
780  
0.5  
0
2500  
B1HP12GD  
152  
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SPECIFICATIONS OF THE DELPHI DIESEL INJECTION PUMP  
ALL TYPES  
PUMP - TYPE - REFERENCE  
Emission standards  
L3  
Compacted (1)  
Acoustic (2)  
Equipment  
XUDLP01  
R 8640 A  
051 A  
XM  
X
U
D
11  
BTE  
P8C  
XUDLP01  
R 8640 A  
102 A  
SYNERGIE  
(1) = Without acoustic bonnet.  
(2) = With acoustic bonnet and foam.  
153  
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SPECIFICATIONS OF THE DELPHI DIESEL INJECTION PUMP  
ALL TYPES  
Static timing  
Reference  
Adjustments (rpm)  
Max. speed  
Dynamic  
Injector  
needle  
lift  
pressure  
Bar)  
Pump  
Type  
Reference  
Engine  
type  
Initial advance  
Compression  
Time  
Colour  
code  
Injector  
timing  
checking  
(at idle)  
Anti-  
stall  
Unladen  
rpm  
Laden  
rpm  
Fast  
idling  
Injector  
holder  
Idling  
+ injector  
(cylinder N° 4)  
Crankshaft  
TDC  
hole  
pump  
pre-positioned  
by pegging  
XUDLP01  
R 8640A/  
002R01AE2  
6734 302H  
P8C  
6751 H  
NOT ADJUSTABLE  
163.5±3.5  
ORANGE  
*
+ 0  
(a) : 850  
with aircon - ( ) See table on page : 153.  
- 50  
*
154  
manuals search engine  
SETTING THE DELPHI ELECTRONIC INJECTION PUMP  
XM  
Engine : P8C  
TOOLS  
- Flywheel locating peg  
: 7017-T.J  
: 9043-T  
Kit 7004-T  
Kit 4123-T  
- EPIC injection pump setting rod  
SETTING THE PUMP  
NOTE : This operation is a pre-positioning of the injection pump.  
- Peg the flywheel.  
- Tilt the pump towards the outer section of the engine.  
- Remove the plug (1).  
- Introduce the peg 9043-T into the orifice "a".  
- Turn the pump towards the inner section of the engine, pushing locating peg 9043-T fully home.  
- Tighten the front and rear nuts of the pump to 2 m.daN.  
- Remove the tools.  
- Refit the plug (1). Tighten to 0.5 m.daN.  
NOTE : No adjustment of the pump controls (managed by the ECU).  
B1HP0NRC  
B1HP0BBC  
155  
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XM  
FITTING DELPHI DIESEL INJECTORS  
Engine : P8C  
[1] Tool to remove/refit injectors (2) 7007-T  
[2] 7008-T.A Tool kit 4123-T  
Fitting an injector  
The copper seal (1) and the fire seal washer (2) are to be  
replaced each time they are removed.  
NOTE : Fitting parts of different makes is PROHIBITED.  
WARNING : Ensure that the fire seal washer (2) is fitted the  
right way round.  
- The needle-lift injector (4) is positioned on the cylinder  
No. 3.  
WARNING : Should the needle lift sensor fail to operate, the  
complete injector holder must be replaced.  
IMPERATIVE : Do not reset the injector holder (4).  
(3) Tighten lightly to prevent any distortion:  
1 m.daN + 20° or 6 m.daN.  
Tighten the injector holder on the cylinder head to :  
9 m.daN  
B1HPOYHC  
B1HPOYJC  
B1HPOYGC  
156  
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ALL TYPES  
SPECIFICATIONS OF THE BOSCH INJECTION PUMP  
PUMP - TYPE - REFERENCE  
L3  
Emission standards  
Equipment  
Automatic  
gearbox  
Aircon  
Damper  
ADC  
Damper  
ADC II  
Transponder  
Damper  
ADC 7 keys  
X
U
XANTIA  
XUDBP02  
R 601/3  
XUDBP02  
R 601/2  
XUDBP02  
R 601/5  
XUDBP02  
R 601/5  
BTF  
DHX  
THY  
RHY  
RHZ  
D
9
SYNERGIE  
XM  
D
K
5
VP36535  
VER 520  
ATE  
TD  
D
W
10  
XANTIA  
CP1 (*)  
SYNERGIE  
ATED  
(*) = The fuel high pressure is driven by the timing belt.  
157  
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ALL TYPES  
SPECIFICATIONS OF THE BOSCH INJECTION PUMP  
Reference  
Adjustments (rpm)  
Max. speed  
Injector  
Static timing  
Dynamic  
Pump  
Type  
Reference  
Engine  
type  
Colour  
code  
needle  
lift  
pressure  
(Bar)  
(1) Initial advance  
Compression  
Time  
timing  
checking  
(at idle)  
Injector  
holder  
+ injector  
Fast  
idling  
Anti-  
stall  
Laden  
rpm  
Unladen  
rpm  
Injector  
Idling  
(3)  
(cylinder N° 4)  
(2)  
1500  
± 100  
+ 3 mm  
shim  
175  
+50  
- 0  
5100  
± 80  
Pump  
0.57 mm  
ABDC  
XUDBP02  
VE R 601 / *  
KCA  
17S92  
DHX  
299C  
GREEN  
950  
± 50  
800  
+0 -50  
RHY  
RHZ  
96255  
42580  
CP1  
Non adjustable  
KCE  
30S5  
312  
YELLOW  
No setting :  
managed  
by ECU  
VP 36  
535  
170  
+5 -0  
THY  
Cylinder N° 3  
ADJUSTABLE WITH DIAGNOSTIC TOOL  
VE R 520 / *  
KCE  
30S5  
316  
NONE  
(1) Engine : Trou de Pige P.M.H  
-
(2) Clearance at the fast idle control 1 mm  
(3) 850 = +0-50 with air conditioning.  
-
See table on page : 157  
*
NOTE : For all pumps on 1.9TD engines with a "B" index : the static timing is 0.82 mm (instead of 0.66 mm)  
158  
manuals search engine  
SETTING THE BOSCH MECHANICAL INJECTION PUMP  
XANTIA  
Engine : DHX  
TOOLS  
- Flywheel locating peg  
- Ring spanner  
- Crescent spanner FACOM 57  
- Dial gauge  
- Dial gauge bracket  
- 31 mm lever  
: 7017-T.R.  
: 4132-T.  
: 11 X 13  
: 3089-T.H.  
: 7010.T.  
Kit 7004-T  
Kit 4123-T.  
: 5003-T.D.  
SETTING THE INJECTION PUMP  
-Tilt the pump in the retarded direction (away from the engine).  
- Fit the timing tool.  
- Turn the engine (direction of engine rotation) until the peg engages in the flywheel.  
- Ensure that the pump pinion can be pegged (if not, rotate the crankshaft by 1 turn).  
- Remove the tool 7017-T.R.  
- Find the B.D.C. position of the pump (by turning the crankshaft backwards) and set the dial  
gauge to "0".  
- Turn the crankshaft (direction of engine rotation) until locating peg 7017-T.R engages.  
- Turn the pump, in the advance direction (towards the engine) until the dial gauge shows  
(See the table on page : 158).  
NOTE : The dial gauge needle must not move when tightening.  
B1HPOYKD  
159  
manuals search engine  
XANTIA  
SETTING THE BOSCH MECHANICAL INJECTION PUMP  
Engine : DHX (continued)  
CHECKING THE INJECTION PUMP SETTING  
- Remove the tool 7017-T.R.  
- Rotate the crankshaft by 1/4 of a turn (opposite direction of rotation).  
- Rotate the crankshaft (direction of rotation).  
- Peg the flywheel.  
- In this position, the dial gauge should show the value "X" (See the table on page : 158).  
- The value "X" corresponds to the travel of the pump piston in relation to the B.D.C.  
- Remove the tool.  
B1HP0NQC B1HP0NPC  
160  
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ADJUSTING THE BOSCH MECHANICAL INJECTION PUMP CONTROLS  
XANTIA  
Engine : DHY  
Engine cold.  
- Check the fast idle speed.  
- Ensure that the lever (3) is against its screw stop (1) by pushing it in the direction of the arrow # .  
If not, adjust with the cable clamp (2), and then the cable tightener (6).  
Engine hot.  
- Ensure that the cable (9) is slack.  
- Engine stopped : fully depress the accelerator pedal, check that the lever (8) is against its stop (7).  
If not, move the position of the spring clip (B).  
Adjusting the idle speed.  
- Loosen the screw (5) until there is no longer any contact with the end of the screw.  
- Move the screw (4) to obtain an engine speed of (see the table on page: 158).  
Adjusting the residual output.  
- Insert a shim "A" of (see the table on pages 158), between the lever (8) and the screw (5).  
Adjust the screw (5) to obtain a speed of (see the table on page 158).  
Adjusting the fast idle speed.  
- Place the lever (3) against the screw (1) and turn the screw to obtain an engine speed of (see table  
on page 158) .  
- Check the operation of the manually-operated "STOP" control.  
Adjusting the throttle lever switch (C).  
- The contacts will open for an accelerator cable travel of 11 mm or a clearance of 8.5 mm at A".  
B1HP0YLD  
161  
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XANTIA - SYNERGIE  
FITTING BOSCH INJECTORS  
Engines : RHY - RHZ  
Evolution : Classification of diesel injector carriers  
Reminder : RHY and RHZ are equipped with 4 diesel injector carriers marked according to their injec-  
tion duct diameters (flow of diesel fuel).  
16/11/98 #  
Identification.  
The injector carriers have an engraving or paint mark on the upper part of the coil, close to the diesel  
fuel return aperture  
Mark 1 = BLUE paint mark = Injector class 1.  
Mark 2 = GREEN paint mark = Injector class 2.  
Identification marking:  
a : Supplier identification.  
b : PSA identification no.  
c : Identification of class.  
After Sales operations.  
ESSENTIAL : When changing a diesel injector carrier, order a component of the same class.  
# 15/11/98 (RPO No.) (injector carrier without marking), always order a class 2 injector carrier.  
B1HP16PC  
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XM  
FITTING BOSCH INJECTORS (continued)  
Engine : THY  
Fitting an injector.  
[1] Injector spanner 77510-T  
[2] 7008-T Kit 4123-T  
The copper seal (1) and the fire seal washer (2) are to  
be replaced each time they are removed.  
NOTE : Fitting parts of different makes is PROHIBITED.  
WARNING : Ensure that the fire seal washer (2) is  
fitted the right way round  
The needle lift type injector (4) is located on cylinder  
No. 3.  
WARNING : Should the needle lift sensor fail, the  
injector holder assembly must be replaced.  
IMPERATIVE: Do not reset the pressure of the injector  
holder (4).  
(3) Tighten lightly to avoid distortion.  
Tighten to: 7 m.daN.  
Tighten the injector holder on  
the cylinder head to : 4.5 m.daN.  
B1HPOYHC  
B1HPOYJC  
B1HPOYGC  
163  
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