vacuum Citroen C2 2004 1.G Workshop Manual

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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

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tools.
[1]
Manual pressurevacuum pump: FACOM DA 16
Vacuum pump:
Connect the tool [1]onto the vacuum pump (1).
Start the engine.
Wait 30 seconds.
The vacuum value should be
0.9 ±0.1 barat idle.
B1HP1K8D
Engines: 8HX 8HW 8HY 8HV
C2 C3

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Engines: RHY RHZ
XSARA PICASSO
Tools.
[1]Manual vacuum pump : FACOM 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 barat 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.
Pressure regulator valve. Connect the tool [1]on the valve (3).
Appy a pressure of 0.5 barto activate the rod "a":
Rod "a"should be moved 12 mm.
Engine speed (rpm) Pressure (Bar)
780 0,6
4000 0,25
B1HP12FD

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: 8HX 8HW
Engines: 8HV 8HY
Tools.
[1]
Manual pressurevacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection (HDi) engines.
EGR v
alve.Connect tool [1]on the capsule takeoff (2).
Apply a vacuum of approx.0,6 barseveral times to activate the rod «a».
In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
Regulation electrovalve (EGR).(Engine:8HX8HW).Check to be performed between the electrovalve (1)and the EGR valve (2).
Link the tool [1]in series, between the electrovalve (1)and the capsule (2).
Compare the values noted with those in the table below.
Regulation electrovalve (EGR).(Engine:8HV8HY).Check to be performed between the electrovalve (2)and the EGR valve (1).
Link the tool [1] in series, between the electrovalve (2)and the capsule (1).
Compare the values noted with those in the table below.
Engine speed (rpm) Vacuum value
780 0,5
2500 0
B1HP15GD
B1HP1K6D
C2 C3

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: RHY RHZ
XSARA PICASSO
Tools.
[1]
Manual vacuum pump : FACOM 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 barto 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) Vacuum value
7800,5
25000
B1HP12GD

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INJECTION
SPECIAL FEATURES: PARTICLE FILTER / CHECKING THE ADDITIVE PUMP
Engine: 9 HZ
IMPERATIVE: Respect the safety and cleanliness requirements.
Tools.
[1]
Manual pressure/vacuum pump: FACOM DA 16
[2]Additive container: ().1613.G Kit 1613
Checks.
IMPERATIVE: Respect the safety and cleanliness requirements specific to HDi engines.
IMPERATIVE: For all operations on the additive circuit, wear protective goggles and gloves that are
resistant to hydrocarbons.
Place the vehicle on a lift.
Raise the vehicle
To test the flow of the additive pump :
Uncouple the tube
(1).
Couple tool [2]on the outlet «a»of the additive reservoir.
Operate for 50 secondsthe actuator test «Additive pump»with the aid of LEXIA or PROXIA.
IMPERATIVE:The volume collected by the tool [2] should be 20 ± 5 ml.
NOTE:
Replace the additive pump if it is defective.
Couple the tube (1).
Operate the actuator test «Filling the tube: additive pump – additive injector», with the aid of LEXIAorPROXIA.
B1HP1UTC
XSARA PICASSO

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INJECTION
SPECIAL FEATURES: PARTICLE FILTER / CHECKING THE ADDITIVE PUMP
Sealing of the additive injector.
Couple tool [1] to the tube (1).
Action the manual pump [1].
WARNING:The additive injector should open at a pressure of 100 ± 20 Bars.
Action the manual pump in vacuum
[1]at 800 m.bars.
WARNING:The downstream pressure should not fall rapidly.
NOTE:Replace the fuel tank if the injector is defective.
Couple the tube
(1).
Operate the actuator test «Filling the tube: additive pump – additive injector», with the aid ofLEXIAor PROXIA.
Check the additive level.
The checking of the additive level is done with reference to the gradations «a»marked on the additive
reservoir.
The top graduation indicates maximum filling
(3 Litres).
The difference between the two gradations equates to 0,25 Litres.
XSARA PICASSO
B1HP1UUC
B1KP019C