check engine Citroen C2 2004 1.G Workshop Manual

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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Engines: 9HZ 9HY
B1HP1UPC
B1HP1UQC
XSARA PICASSO
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.
EGE 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.

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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
PARTICLE FILTER SAFETY AND CLEANLINESS REQUIREMENTS
General.
ESSENTIAL: Given the very high pressures prevailing in the fuel high pressure circuit (1600 Bars), respect the following regulations.
It is forbidden to smoke in the immediate proximity of the high pressure circuit during a repair.
Avoid working close to flames or sparks.When the engine is running:
Do touch the fuel high pressure circuit.
Always keep out of range of possible projections of fuel, which could cause serious injuries.
Do not place your hand near to any leak on the fuel high pressure circuit. After the engine has stopped, wait 30 seconds before starting any operation.
NOTE:The waiting time is necessary to allow the fuel high pressure circuit to return to atmospheric pressure.
Safety rules.
IMPERATIVE:Wait at least an hour before starting any repair on the exhaust line.
Forced regeneration of the particle filter:
Check that there are no aerosols or inflammable products inside the vehicle’s boot.
Wear high temperature gloves.
Connect the vehicle to a gas extractor approved for this type of operation.
IMPERATIVE: In the absence of the required installations, carry out the forced regeneration of the particle filter outside the workshop,
in a concreted area well away from any inflammable materials. Place the vehicle in the high position.
ALL TYPES

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INJECTION
SPECIAL FEATURES: FORCED REGENERATION OF THE PARTICLE FILTER
Tools.
Diagnostic stations: LEXIA or PROXIA
Imperative: Respect the safety and cleanliness requirements.
Forced regeneration of the particle filter.
IMPERATIVE: Respect the safety and cleanliness requirements specific to HDi engines.
ESSENTIAL: Connect the vehicle to a gas extractor approved for this type of operation.In the absence of the required installations,carry out the forced regeneration of the particle filter outside the workshop, in a concreted
area well away from any inflammable materials. Place the vehicle in the high position.
WARNING:
Check that the fuel level is sufficient (at least 20 litres).
Start the engine and allow it to warm up (60°C minimum).
Connect the diagnostic tool to the vehicle’s central socket.
Trigger the regeneration cycle, with the diagnostic tool.
Automatic running of the regeneration cycle of the particle filter:
Autocheck by the engine ECU. Stabilisation of engine speed at
4000 rpm, operating with post injection.
Change to idling speed (for 30 seconds).
Stabilisation of engine speed at 3000 rpm, checking of the efficiency of the regeneration of the particle filter.
Change to idling speed.
NOTE:Let the engine run at idling speed for the benefit of cooling.
Stop the engine.
IMPERATIVE: Wait for at least an hour before any operation on the exhaust line.
ALL TYPES

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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

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SPEEDOMETERALL TYPES
An E.E.C. decree of 25 June 1976, regulates the speed displayed by the speedmeter in relation to the actual speed travelled.
This decree stipulates:
The speed indicated by a speedometer must never be lower than the actual vehicle speed.
Between the speed displayed «SD»and the speed travelled «ST», there must always be the following relationship:
ST < SD < 1.10 ST + 4 Kph
Example: For an actual speed of 100 Kphthe speed displayed by the speedometer may be between 100and 114 Kph.
The speed indicated by the speedometer may be influenced by:
The speedometer.
The tyres fitted to the vehicle.
The final drive ratio.
The speedometer drive ratio.
Any of these components can be checked without removing them from the vehicle
(see information note N° 78-85 TT of 19 October 1978).NOTE:Before replacing the speedometer, check the conformity of the following points:
The tyres fitted to the vehicle.
The gearbox final drive ratio.
The speedometer drive ratio.
CLUTCH
GEARBOX
TRANSMISSION

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CLUTCH
GEARBOX
TRANSMISSION
CLUTCH CONTROLS: FEATURES / CHECKS AND ADJUSTMENTS
Engines: KFW NFU 6FZ RFN RFS 8HX 9HZ 9HY WJY RHY RHZ
Clutch cable.
Removing.
Uncouple the cable from the lever (1).
Unclip the cable from the gearbox by actioning
the side tabs
(2).
Detach the cable from the bulkhead.
Remove the clip
(3).
Uncouple the cable from the clutch pedal.
B2BP001CB2BP002C
XSARA XSARA PICASSO
B2BP02VC
B2BP02WC
«PUSH» clutch
«PULL» clutch
B2BP03BCB2BP002C

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CLUTCH
GEARBOX
TRANSMISSION
CLUTCH CONTROLS: FEATURES / CHECKS AND ADJUSTMENTS
Engines: KFW NFU 6FZ RFN RFS 8HX 9HZ 9HY WJY RHY RHZ
Refitting.
Place the pedal in the high position (contact at “a”).
Attach the cable yoke on the hook of the clutch pedal.
Fit a new clip
(3).
Fit the endpiece (4)to the bulkhead (fit with G6grease).
Clip the endpiece (5)on the gearbox.
Couple the cable to the lever (1).
Depress the clutch cable several times to lodge the cable in place.
Check that the endpiece (4) is correctly lodged on the bulkhead.
Check the operation of the automatic adjusting system.
After fitting the cable, pull the clutch lever in the inverse direction
(direction F), the lever should
move back when pulled by hand.
Press the clutch pedal very lightly and repeat the same operation. The lever should not move
back.
WARNING:If a system blockage is detected when checking, or if the pedal has been removed,
the pedal position must be adjusted. The correct positioning of the pedal is obtained by the
angular displacement of the stop supports
"a"and "b".
B2BP03CD
XSARA XSARA PICASSO
«PUSH» clutch
«PULL» clutch
B2BP03DD

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CLUTCH
GEARBOX
TRANSMISSION
CLUTCH CONTROLS: FEATURES / CHECKS AND ADJUSTMENTS
Engines: KFW NFU 6FZ RFN RFS 8HX 9HZ 9HY WJY RHY RHZ
Adjusting the pedal height.
Loosen the nut (6)and the screw (7).
Using a lever, raise the stop support (8)to its highest position. In this position, there should be a substantial free
play in the pedal.
Lower the support until there is a free play of
2 ± 1 mm.
Tighten the nut (6) and the screw (7).
Check that the clutch cable sleeve can move freely.
At rest, the clutch cable sleeve should be free and able to lengthen and shorten.
Clutch pedal travel.
The automatic clutch wear adjustment system has no manual adjustment.
Pedal travel is identical on all models:154 ± 5 mm.
The adjustment is achieved by reducing the length of the cable sleeve.
WARNING:Automatic adjustment of the pedal travel is accompanied by a modification of the curvature of the
cable sleeve. Do not add any supplementary fixing points or alter the routing in any way.
«c»Routing of new cable.«b»Routing after adjustment of play.«x» Clutch wear.
B2BP03ECB2BP03FD
XSARA XSARA PICASSO