check engine RENAULT TWINGO 2009 2.G Engine And Peripherals Manual PDF

13B-30
DIESEL INJECTION
Flow actuator: Removal - Refitting
K9K
13B
aFit the high pressure pump pipes.
aConnect to the high pressure pump:
-the diesel fuel supply pipe,
-the diesel return pipe.
aAttach the high pressure pump pipes.
aRemove the protection on the alternator to prevent
fuel flowing out.
aConnect the connectors:
-the heater plugs,
-the injectors,
-the flow actuator,
-diesel fuel temperature sensor.
aRemove the blanking cover protecting the dipstick
guide inlet orifice on the cylinder block.
aRefit:
-the dipstick guide,
-the dipstick guide nut,
-the oil level dipstick.
aRefit the neck nuts.
aPrime the fuel circuit with a manual priming pump
until the disconnected pipes are filled with fuel; if
necessary, bleed the fuel filter (see 13A, Fuel sup-
ply, Fuel filter: Removal - Refitting, page 13A-4) .
aConnect the battery (see ) (MR 411, 80A, Battery).
aCheck that there are no fuel leaks.
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.
aRefit the engine cover.

13B-33
DIESEL INJECTION
Venturi: Removal - Refitting
K9K
13B
aPrime the fuel circuit using the manual priming pump
(4) until the disconnected pipes are filled with fuel
(automatic degassing).
aCheck that there are no fuel leaks.
aStart the engine.
aCheck that there are no fuel leaks.
aRefit the engine cover.
120045

13B-34
DIESEL INJECTION
High pressure pipe: Check
K9K
13B
a
CHECK
aRemove the front engine cover.
aPrime the fuel circuit with the manual priming pump
until the disconnected pipes are filled with fuel (auto-
matic degassing).
aCheck that there are no fuel leaks.
aConnect the Diagnostic tool to the vehicle.aDeal with present faults,
aActivate command AC029 “high pressure circuit
sealing test”.
aCheck that there are no fuel leaks.
aDeal with the causes of any possible leaks.
aUse the Diagnostic tool to check for stored faults;
deal with these and clear them as necessary.
aDisconnect the Diagnostic tool.
aRefit the engine cover. Equipment required
Diagnostic tool
Note:
Check that there are no diesel leaks after each
operation.
Note:
The Diagnostic tool can be used to test the high
pressure circuit with the engine running. This
command can be used to run fault finding on a
leak due to an incorrectly fitted or tightened
union. This command only works if the engine
coolant temperature is greater than 60˚. The fault
finding procedure will not reveal small leaks due
to incorrect tightening.
IMPORTANT
Consult the safety and cleanliness advice and
operation recommendations before carrying out
any repair (see 13B, Diesel injection, Diesel
injection: Precautions for the repair, page
13B-1) .Note:
Certain faults will prevent this test from being
carr ied out: deal with them first.
Note:
The engine automatically runs a cycle of four
acceler ations and decelerations to lower the rail
pressure.
Note:
Do not leave anything on the engine compart-
ment dur ing the test phase (significant vibration).

13B-38
DIESEL INJECTION
High pressure pipe between pump and rail: Removal - Refitting
K9K
13B
aClip the neck on.
aConnect to the high pressure pump:
-the diesel fuel supply pipe,
-the diesel return pipe to the diesel filter.
aRemove the protection on the alternator and starter.
aConnect the connectors:
-the heater plugs,
-the injectors,
-the flow actuator,
-diesel fuel temperature sensor.
aRemove the blanking cover protecting the dipstick
guide inlet orifice on the cylinder block.
aRefit:
-the dipstick guide,
-the dipstick guide nut,
-the dipstick,
-the neck nuts.
aPrime the fuel circuit with a manual priming pump
until the disconnected pipes are filled with fuel; if
necessary, bleed the fuel filter (see 13A, Fuel sup-
ply, Fuel filter: Removal - Refitting, page 13A-4) .
aCheck that there are no fuel leaks.
aConnect the battery (see ) (MR 411, 80A, Battery).
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.
aRefit the engine cover.

13B-42
DIESEL INJECTION
High pressure pipe between rail and injector: Removal - Refitting
K9K
13B
aFit and lock a new clip between the high pressure
pipes between the rail and the injectors.
aUsing the (Mot. 1746), tighten to torque:
-the high pressure pipe unions between the
pump and the yellow rail (24 Nm),
-the high pressure pipe unions between the
pump and the silver rail (28 Nm).
III - FINAL OPERATION.
aRefit:
-the channel,
-the neck nut.
aFit the neck wiring harness.
aClip the neck on.
aConnect to the high pressure pump:
-the diesel fuel supply pipe,
-the diesel return pipe to the diesel filter.
aRemove the protection on the alternator and starter.
aConnect the connectors:
-the heater plugs,
-the injectors,
-the flow actuator,
-diesel fuel temperature sensor.
aRemove the blanking cover protecting the dipstick
guide inlet orifice on the cylinder block.
aRefit:
-the dipstick guide,
-the dipstick guide nut,
-the oil level dipstick.
aRefit the neck nuts.
aPrime the fuel circuit with a manual priming pump
until the disconnected pipes are filled with fuel; if
necessary, bleed the fuel filter (see 13A, Fuel sup-
ply, Fuel filter: Removal - Refitting, page 13A-4) .
aCheck that there are no fuel leaks.
aConnect the battery (see ) (MR 411, 80A, Battery).
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.
aRefit the engine cover.

13B-43
DIESEL INJECTION
Injector rail: Removal - Refitting
K9K
13B
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment)
aRemove the front engine cover.
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aDisconnect:
-the heater plug connectors (1) ,
-the connectors (2) from the injectors. Special tooling required
Mot. 1746Offset wrench for tightening
High Pressure pump pipes.
Tightening torquesm
studs of the injection rail
on the cylinder head8 Nm
injector rail nuts28 Nm
unions for the high pres-
sure pipes between the
rail and the yellow-
coloured injector24 Nm
unions for the high pres-
sure pipes between the
rail and the silver-
coloured injector28 Nm
unions for the high pres-
sure pipes between the
pump and the yellow-
coloured r ail24 Nm
unions for the high pres-
sure pipes between the
pump and the silver-
coloured r ail28 Nm
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 13B, Diesel injection, Diesel injec-
tion: Precautions for the repair, page 13B-1) .
IMPORTANT
Use the diagnostic tool before any operation is car-
ried out on the injection circuit to check:
-that the rail is not under pressure,
-that the fuel temperature is not too high.
Working on the circuit with the engine running is
strictly forbidden.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
IMPORTANT
Wear leaktight gloves (nitrile type) for this opera-
tion.
WARNING
To prevent impurities from entering the circuit, place
protective plugs on all fuel circuit components
exposed to the open air.
127895

13B-47
DIESEL INJECTION
Injector rail: Removal - Refitting
K9K
13B
aRemove the blanking plugs.
aFit the injector rail.
aFit the injector rail nuts without tightening them.
III - FINAL OPERATION.
a
aRemove the blanking plugs from the high pressure
pump and the injection rail and discard them.
aFit the high pressure pipe between the high pressure
pump and the injection rail.
aTighten the high pressure pipe unions between the
pump and the rail until contact is made.
aRemove the blanking plugs on the injection rail and
the diesel fuel injectors then discard them.
aFit the new high-pressure pipes between the rail and
the injectors.
aTighten until contact the unions of the high pressure
pipes between the rail and injector.aFit and lock the new clips between the high pressure
pipes on the rail and injectors.
aTighten to torque:
-the injector rail nuts (28 Nm),
-the unions for the high pressure pipes between
the rail and the yellow-coloured injector (24
Nm) using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the rail and the silver-coloured injector (28 Nm)
using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the pump and the yellow-coloured rail (24 Nm)
using the tool (Mot. 1746),
-the unions for the high pressure pipes between
the pump and the silver-coloured rail (28 Nm)
using the tool (Mot. 1746),
aConnect to the high pressure pump:
-the fuel return pipe to the fuel filter,
-the fuel supply pipe.
aRefit the neck on the injection rail.
aRemove the protection fitted on the inlet opening of
the oil level dipstick on the cylinder block.
aRefit:
-the dipstick guide,
-the oil level dipstick nut,
-the oil level dipstick.
aConnect the injector rail pressure sensor connector.
aPosition the wiring harness in its channel.
aFasten the electrical wiring to the channel.
aConnect:
-the diesel temperature sensor,
-the fuel flow actuator,
-the injector connectors,
-the heater plug connectors.
aPrime the fuel circuit using a manual priming pump
until the disconnected pipes are filled with fuel.
aCheck that there are no fuel leaks.
aConnect the battery (see Battery: Removal - Refit-
ting) (80A, Battery).
aCheck the high pressure circuit (see 13B, Diesel in-
jection, High pressure pipe: Check, page 13B-34)
.
aRefit the engine cover.
20960
WARNING
Before fitting a new high-pressure pipe, lightly
lubricate the nut threads with the oil from the
applicator provided in the new parts kit.
Be careful not to allow oil into the high-pressure
pipe.
Do not lubricate high-pressure pipes supplied
without an applicator, as these high-pressure
pipes are self-lubricating.

13B-50
DIESEL INJECTION
Fuel temperature sensor: Removal - Refitting
C44, and K9K
13B
aTorque tighten the fuel temperature sensor (15
Nm).
aConnect the fuel temperature sensor connector.
II - FINAL OPERATION.
aConnect:
-the injector connectors for cylinders 3 and 4,
-the heater plug connectors for cylinders 3 and 4.
aRemove the protection on the alternator to prevent
fuel flowing out.
aConnect the battery ( (see Battery: Removal - Re-
fitting) ).
aStart the engine and check that there are no leaks.
aRefit the engine cover.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.

13B-51
DIESEL INJECTION
Injector leak flow: Check
K9K
13B
PIECES ET INGREDIENTS POUR LA REPARATION
Ingrédients :
-cleaning cloths,
-set of K9K blanking plugs (DELPHI injection).
CHECK
aRemove the front engine cover.aDisconnect:
-the diesel return pipes (1) on the injectors,
-the diesel return pipe (2) on the Venturi fitted on the
high pressure pump.
aFit the correct blanking plug on the Venturi. Special tooling required
Mot. 1711Kit for measuring the injector
fuel flow rate.
Equipment required
Diagnostic tool
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 13B, Diesel injection, Diesel injec-
tion: Precautions for the repair, page 13B-1) .
121418
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to r un.
Note:
It is essential to fi t an appropriate blanking plug
to the Venturi to avoid depriming the diesel return
circuit.

13B-52
DIESEL INJECTION
Injector leak flow: Check
K9K
13B
aConnect four of the transparent pipes (3) of the
(Mot. 1711) onto the diesel injector return.
aInsert these pipes in the four graduated measuring
cylinders (4) of the (Mot. 1711).
aConnect the Diagnostic tool to the vehicle.
aFollow the instructions given (depending on the en-
gine suffix) (see Fault finding - tests)(MR 413, 13B,
Diesel injection).
aDisconnect the transparent pipes from the (Mot.
1711).
aRemove the transparent pipes from the graduated
measuring cylinder of the (Mot. 1711).
aEmpty the diesel fuel out of the graduated measur-
ing cylinders.
aConnect:
-the diesel return pipes on the injectors,
-the diesel return pipe to the Venturi attached to the
high pressure pump.
aReplace the faulty injector(s) (see ) .
aCheck that there are no fuel leaks.
aUse the Diagnostic tool to check for an absence of
stored faults; deal with these and clear them as nec-
essary.
aRefit the engine cover.
107637
Note:
If necessary, attach the graduated measuring
cylinder rail of the (Mot. 1711) to the bonnet.