Citroen XSARA PICASSO 2005 1.G Workshop Manual

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INJECTION
CHECKS: TURBO PRESSURE
Tools.
[1]Pressure gauge for checking boost pressure: 4073-T.A Kit 4073-T
[2] Sleeve for checking boost pressure: 4185-T
[3]Adaptor sleeve: 4229-T
Checks.
IMPERATIVE: respect the following checking requirements: Engine at running temperature.
Vehicle in running order at full load.
Preparation.
Remove the collar fixing (3).
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 fourthto third gear).
Check the pressure: 0.95 ± 0.05 bar (between 2500and 3500rpm).
Remove the tools, reposition the pipe (1)and refit the collar (3).
B1HP12JD
Engine: RHZ
XSARA PICASSO
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum 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 - 8HZ
XSARA
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
Checks.
Vacuum pump.
Connect the tool [1]into the vacuum pump (1).
Start the engine.
The vacuum value should be 0.9 ± 0.1 barat idle
(after 30 secondsof operation).
NOTE:The exhaust gas recycling valve is not linked to the air supply circuit.
The exhaust gas recycling electrovalve is controlled by the engine ECU.
Turbocharging pressure regulation valve.
Connect the tool [1]on the valve (2).
Apply a vacuum of approx. 0.8 bar.
Rod "a"should move 6 ± 2 mm.B1HP1UGC
B1HP22RC
Engine: 9HX
C4
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
Checks.
Vacuum pump.
Connect the tool [1]into the vacuum pump (1).
Start the engine.
Wait 30 seconds.
The vacuum value should be 0.9 ± 0.1 barat idle.
NOTE:The exhaust gas recycling valve is not linked to the air supply circuit.
The exhaust gas recycling electrovalve is controlled by the engine ECU.
Turbocharging pressure regulation valve.
Connect the tool [1]on the valve (2)
(tube identified by the colour grey).
Apply a vacuum of approx. 0.8 bar.
Rod "a"should move 12 ± 2 mm.
B1HP1UGC
B1HP1UHC
Engines: 9HY - 9HZ
C4
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
B1BP33ZC
B1BP340C
Engine: RHR
B1BP341C
B1BP342C
Tool.
[1]Manual pressure-vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
WARNING: After switching off the ignition, wait 15 minutes before disconnecting
the battery
(to guarantee memorisation of the initialisations of the different ECUS).
Checking the vacuum source
(vacuum pump).
Connect the tool [1] on the take-off «a».
Start the engine.
The value should be: 1 ± 0,2.
Turbocharging pressure electrovalve.
Connect the tool [1]on the vacuum supply «b»of the electrovalve (1).
Start the engine.
The value should be: 1 ± 0,2.
Cold air circuit electrovalve.
Connect the tool [1]on the vacuum supply «c»of the electrovalve (2).
Start the engine.
The value should be: 1 ± 0,2.
Warm air circuit electrovalve.
Connect the tool [1]on the vacuum supply «d»of the electrovalve (3).
Start the engine.
The value should be: 1 ± 0,2.
C4
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
B1BP343C
B1BP344C
Engine: RHR
B1BP345C
Checking the warm air opening.
Remove:
- The air duct (4).
- The air duct (5).
- The air duct (6).
Connect the tool [1]on the warm air butterfly control diaphragm at «e».
Apply a vacuum of 0,7 ± 0,2, the warm air butterfly «f»should be fully open.
Checking the cold air closing.
Connect the tool [1]on the cold air butterfly control diaphragm at «g».
Apply a vacuum of 0,65 ± 0,2, the cold air butterfly «h»should be fully closed.
Refit:
- The air duct (4).
- The air duct (5).
- The air duct (6).
C4
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[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.
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 barto activate the rod "a".
Rod "a"should move 12 mm.
B1HP12FD
Engines: RHY - RHZ
XSARA PICASSO
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Tool.
[1] Manual pressure-vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
EGR valve.
Connect tool [1] on the capsule take-off (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).
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.
Engine speed (rpm) Vacuum value
780 0,5 bar
2500 0 bar
B1HP1K6D
Engines: 8HX - 8HZ
XSARA
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Exhaust gas recycling (EGR) valve.
(1)Exhaust gas recycling (EGR) electrovalve
NOTE:The engine ECU pilots the EGR valve.
Perform the check with the aid of a diagnostic tool.
Carry out the following operations with the diagnostic tool:
- «INJECTION»menu.
- Actuator tests.
- EGR electrovalve.
Check that you can hear the click from the EGR regulation electrovalve.
Double butterfly housing
(vehicle with particle filter).
(2)Double butterfly housing
Perform the check with the aid of a diagnostic tool.
Carry out the following operations with the diagnostic tool:
- «INJECTION»menu.
- Actuator tests.
- Butterfly.
EGR exchanger butterfly.
Check that you can hear the click from the double butterfly housing.
B1HP1UPC
B1HP1UQC
XSARA PICASSO
Engines: 9HZ - 9HY
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Tool.
[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
780 0,5 bar
2500 0 bar
B1HP12GD
Engines: RHY - RHZ
XSARA PICASSO
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