2000 Citroen C5 sensor

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INJECTION
STANDARD
W3 CEE Petrol Utility vehicles : Brussels Directive 96/69
95 Diesel < 3.5 tonnes
Gaz Class 1 :
 3 classes depending on
• new models 01/97
 vehicle weight :
• existing models 10/97
 Class 1 < 1250 kg
Class 2/3 : Class 2 : 1250/1700 kg
• new models 01/98
 Class 3 : 1700 kg
• existing models 10/98

L4 CEE Petrol Private vehicles : Brussels Directive 98/69
2000 Diesel All Types
 EURO 2 standard (L3)
Gaz • new models
 01/2000 made stricter
• existing models
 01/2001  Fiscal incentives
EMISSION STANDARDS
PSA
A-S RPEngines ApplicableVehicles
EURO 2
(EURO
96)
EURO 3
(EURO
2000)E.E.C.
APPLICATION NOTES
CHARACTERISTICS
With oxygen sensor and
reinforced catalytic
converter for petrol
vehicles.
With catalytic converter
and EGR for diesel
vehicles.
With 2 oxygen sensors
and catalytic converter
for petrol vehicles. With
catalytic converter and
EGR for diesel vehicles.
With EOBD on-board
diagnosis.

Downloaded from www.Manualslib.com manuals search engine 119
INJECTION
STANDARD
W3 Petrol Utility vehicles : Brussels Directive 98/69
Diesel < 3.5 tonnes
 EURO 2 standard (L3)
Gaz
made stricter
Class 1 : Fiscal incentives
• new models
 01/2000 3 classes depending on
• existing models
 01/2001 vehicle weight :
Class 2/3 :
Class 1 < 1305 kg
• new models  01/2001Class 2 : 1305/1760 kg
• existing models  01/2002Class 3 : 1760 kg
IF / L5 Petrol Private vehicles : Brussels Directive 98/69
All Types
 EURO 3 standard (L4)
• new models
 01/2001 made stricter
• existing models
 01/2003  Fiscal incentives
EMISSION STANDARDS
PSA
A-S RPEngines ApplicableVehicles
EURO 3
(EURO
2000)
EURO 4E.E.C.
APPLICATION NOTES
CHARACTERISTICS
With 2 oxygen sensors
and catalytic converter
for petrol vehicles.
With catalytic converter
and EGR for diesel
vehicles.
With EOBD on-board
diagnosis.
With 2 oxygen sensors
and catalytic converter
for petrol vehicles.
With EOBD on-board
diagnosis.

Downloaded from www.Manualslib.com manuals search engine 123
INJECTION
SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
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.
- Third piston deactivator.
- High pressure regulator.
- High pressure sensor.
- 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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INJECTION
(7) Air / air heat exchanger VALEO.
(8) Turbocharger KKK K03.
(9)EGR valvePURFLUX.
(10)Air butterflyMAGNETI MARELLI
48W7 Ref. 648.
(11)Air filter PSA 7899.
(12) Turbocharging pressure sensorNIPPON DENSO.
AIR SUPPLY CIRCUIT SPECIFICATION
Engine : RHZ
B1HP1A7P

Downloaded from www.Manualslib.com manuals search engine CHECKS : TURBO PRESSURE
Engine : 4HX
TOOL
[1]Pressure gauge for checking pressure7073-T.A.
[2] Extension cable for taking pressure8607-T.A
[3]Union and hose for taking pressure8607-T.B.
[4] Adaptor for taking pressure8607-T.C.
[5]Unions and hoses for taking pressure4088-T
Checks.
ESSENTIAL : Respect the safety and cleanliness requirements specific to
high pressure diesel injection (HDi) engines.
Preliminary operations.
Carry out the following operations:
Remove the screw (1).
Disconnect the tube (2).
Move aside the pressure sensor (3).
Preparation of tools : in position on the vehicle.
Fit as follows :
Remove the hose(a)of tool [5], screw in its place the tool [3], remove the hose (b)of tool [5],
screw the hose (b)of tool [5]on the pressure gauge[1], screw the adaptor [4]onto the tool [5]
Connect the tube(2) of the pressure sensor(3) on the tool [4], tighten the tube(2) with a
Serflex type collar.
B1BP28DCE5AP1SUC
137
INJECTION

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INJECTION
B1BP28ECC5FPOBLC
CHECKS : TURBO PRESSURE
Engine : 4HX
Preparation of tools : in position on the vehicle (continued).
Screw the tool [3] on the take-off of the turbo air radiator at «c».
Place the pressure gauge on the cup holder at «d».
Connect the extension [2]on the hose «b»and tool [5].
ESSENTIAL : Observe the following checking requirements.
- Start the engine.
- Engage first gear and start the vehicle.
- Engage the gears up to third gear.
- Decelerate to1500 rpm.
Accelerate gradually : the pressures should be the following :
1,1 ± 0,05 b at 2000 rpm
1,2 ± 0,05 b at 3000 rpm.
Return the vehicle to normal.
Remove the tools [1],[2], [3], [4]and [5].
Reposition the pressure sensor (3).
Couple the tube(2).
Refit and tighten the screw (1).

Downloaded from www.Manualslib.com manuals search engine FEATURES OF MULTIPOINT INJECTION SYSTEM
Summary
(1) Air pump
(2) Power steering pressure sensor
(3) Engine management ECU
(4) Canister purge electrovalve
(5)Butterfly housing
(6)Idle regulation stepper motor
(7) Inlet air temperature sensor
(8)Inlet housing heater element
(9)Butterfly potentiometer
(10)Automatic gearbox (Option)
(11)Built-in systems interface
(12) Transponder
(13)Diagnostic connector
(14) Ignition injection test warning lamp
(15)Battery
(16)Immobiliser unit
(17) Air conditioning
(18) Instrument panel
(19)Fuel tank
(20)Fuel pump, gauge and filter assembly(21)Canister reservoir
(22) Downstream oxygen sensor
(23)Upstream oxygen sensor
(24)Air inlet valve
(25)EGR electrovalve
(26)Camshaft position sensor
(27) Ignition coil
(28)Sparking plug
(29) Injector supply rail
(30)Injectors
(31) Air inlet pressure sensor
(32) Engine coolant temperature sensor
(33) Engine speed sensor
(34)Cooling fan unit
(35) Knock sensor
B1HP1C5P
139
INJECTION

Downloaded from www.Manualslib.com manuals search engine 140
INJECTION
FEATURES OF MULTIPOINT INJECTION SYSTEM
Fuel circuit
Air inlet circuit
(diagr.) Component Supplier Reference Observations
30
4
19
21
20
7
31
6
5
9Recommended fuel
Petrol injector
Canister purge electrovalve
Fuel tank
Canister reservoir
Fuel pump and gauge assembly
with integral fuel filter
Air temperature sensor
Air inlet pressure sensor
Idle regulation stepper motor
Butterfly housing
PotentiometerSAGEM
BOSCH
SAGEM (1)
SOLVAY
MGI
MARWAL
MAGNETI
MARELLI
BOSCH
MGI
MAGNETI
MARELLI (1)
MGI
MAGNETI
MARELLI280520274
IAT S04
0261230034
B13 (1)Unleaded 95 RON or 98 RON
2 way black connector. Resistance : 12,2 ohms
2 way brown connector. Installation : between the engine
fusebox and the brake amplifier
Capacity = 66 Litres
Installation : in the rear LH wheelarch
6 way black connector. Pressure : 3,5 Bars.
2 way grey connector, fixed on the butterfly housing
3 way grey connector integral with the inlet manifold.
4 way black connector, fixed on the butterfly housing
The butterfly housing comprises the inlet air temperature
sensor, the butterfly potentiometer, the electric motor.
3 way black connector, installed on the butterfly housing.
(1) = RFNengine