Injector RENAULT TWINGO 2009 2.G Engine And Peripherals Owner's Manual

12A-39
FUEL MIXTURE
Inlet distributor: Removal - Refitting
D4F, and 780 or 782
12A
aConnect:
-the air pressure sensor connector on the intercool-
er air outlet pipe,
-the air temperature sensor connector on the inter-
cooler air outlet pipe.
aRefit:
-the injector rail (see 17B, Petrol injection, Injec-
tor rail - Injectors: Removal - Refitting, page
17B-27)
-the distributor pressure sensor,
-the pressure sensor bolt.
aConnect the distributor pressure sensor connector.
aRefit:
-the filler neck,
-the filler neck bolt,
-the throttle valve (see 12A, Fuel mixture, Throttle
valve: Removal - Refitting, page 12A-20) . D4F, and 780

12A-42
FUEL MIXTURE
Inlet distributor: Removal - Refitting
K4M
12A
II - REMOVAL OPERATION
aRemove:
-the inlet distributor bolts (11) ,
-the inlet distributor,
-the inlet distributor seals.
When replacing the inlet distributor
aRemove:
-the air inlet temperature sensor (12) ,
-the air inlet pressure sensor (13) ,-the throttle valve,
-the throttle valve seal.
aRemove:
-the bolts (15) from the heat shield,
-the heat shield,
-the oil vapour rebreathing pipe.
REFITTING
I - REFITTING PREPARATION OPERATION
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the inlet distributor joint face,
-the joint face of the injector holder shim.
aparts always to be replaced: inlet distributor
seal.
132371
132438
132439
WARNING
To ensure proper sealing, the gasket surfaces
must be clean, dry and not greasy (avoid any fin-
ger mar ks).
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.

12A-43
FUEL MIXTURE
Inlet distributor: Removal - Refitting
K4M
12A
aFit new seals to the inlet distributor.
When replacing the inlet distributor
aparts always to be replaced: Throttle valve seal.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the throttle valve joint face if it is to be re-used,
-the inlet distributor seal housing.
aRefit:
-a new seal on the inlet distributor,
-the throttle valve.
aIn order, torque tighten the throttle valve bolts (10
N.m).
aRefit:
-the oil vapour rebreathing pipe,
-the heat shield,
-the air inlet pressure sensor,-the air inlet temperature sensor.
II - REFITTING OPERATION
aRefit:
-a new seal between the injector holder shim and
the inlet distributor,
-the inlet distributor.
aTighten to torque and in order the inlet distributor
bolts (12 N.m).
III - FINAL OPERATION
aConnect the petrol vapour recirculation pipe.
aPosition the wiring.
aClip on the wiring.
aConnect:
-the camshaft dephaser solenoid valve connector,
-the air inlet pressure sensor connector,
-the connector of each coil,
-the air inlet temperature sensor connector,
-the brake servo non-return valve,
-the throttle valve connector.
aRefit the air outlet pipe onto the air filter unit.
aConnect:
-the air outlet pipe of the air filter unit,
-the oil vapour rebreathing pipe on the air filter unit
air outlet pipe. WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.
132383
132371

12A-45
FUEL MIXTURE
Injector holder shim: Removal - Refitting
K4M
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aDisconnect the battery (see ) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).aRemove:
-the dipstick,
-the dipstick guide bolts (1) .
aMove aside the dipstick guide.
aRemove:
-the inlet distributor (see 12A, Fuel mixture, Inlet
distributor: Removal - Refitting, page 12A-29) ,
-the « injector rail - injector » assembly (see 17B,
Petrol injection, Injector rail - Injectors: Remov-
al - Refitting, page 17B-27) . Tightening torquesm
bolts 1 and 2 on the
injector holder shim30 N.m
bolts 3, 4, 5, 6, 7, 8, 9
and 10 on the injector
holder shim25 N.m
upper timing cover bolt40 N.m
bolt on the right-hand
suspended engine
mounting cover62 N.m
132368

12A-46
FUEL MIXTURE
Injector holder shim: Removal - Refitting
K4M
12A
II - REMOVAL OPERATION
aRemove the bolt (2) from the right-hand suspended
engine mounting cover.
aRemove:
-the bolt (3) from the upper timing cover,
-the injector holder shim bolts,
-the injector holder shim,
-the injector holder shim seal.REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: Inlet shim seal.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the cylinder head joint face,
-the gasket face of the injector holder shim, in case
of reuse.
II - REFITTING OPERATION
aRefit:
-a new seal on the injector holder shim,
-the injector holder shim.
aTighten to torque and in order:
-bolts 1 and 2 on the injector holder shim (30
N.m),
131777
102303
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.
102303

12A-47
FUEL MIXTURE
Injector holder shim: Removal - Refitting
K4M
12A
-bolts 3, 4, 5, 6, 7, 8, 9 and 10 on the injector
holder shim (25 N.m).
aTorque tighten:
-the upper timing cover bolt (40 N.m),
-the bolt on the right-hand suspended engine
mounting cover (62 N.m).
III - FINAL OPERATION
aRefit:
-the « injector rail - injector » assembly (see 17B,
Petrol injection, Injector rail - Injectors: Remov-
al - Refitting, page 17B-27) ,
-the inlet distributor (see 12A, Fuel mixture, Inlet
distributor: Removal - Refitting, page 12A-29) ,
-dipstick guide ,
-the dipstick,
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing).
aConnect the battery (see ) (80A, Battery).

13A-1
FUEL SUPPLY
Diesel supply circuit: Operating diagram
K9K
13A
The diesel fuel supply system includes a diesel injec-
tion computer and various sensors.
120417
(1) Fuel tank
(2) Dipstick
(3) Electrical diesel fuel reheater
(4) Man ual priming pump
(5) Diesel filter
(6) High pressure pump
(7) Fuel fl ow actuator
(8) Injector rail
(9) Injector rail pressure sensor
(10) Diesel injector
(11) Venturi
IMPORTANT
Loosening a high pressure pipe union when the
engine is running is strictly prohibited.
WARNING
It is forbidden:
-to dismantle the interior of the pump or injectors.
-to remove the pressure sensor from the fuel rail
(because of circuit contamination problems). If the
pressure sensor fails, the pressure sensor, the rail
and the five high pressure pipes must be replaced,
-to dismantle the flow regulator solenoid valve and
the pressure regulator solenoid valve on the high
pressure pump.

13A-9
FUEL SUPPLY
Fuel pressure: Check
D4F or D7F
13A
CHECK
aI - PREPARATION OPERATION FOR CHECK
aEnsure you have a checking tool (Mot. 1311-01) and
a “T” union (Mot. 1311-08).
aRemove the oil filler neck.
II - TEST OPERATION
aDisconnect the petrol inlet pipe from the injector rail. Special tooling required
Mot. 1311-01Pressure gauges and petrol
pressure measur ing unions.
Mot. 1311-08Union for taking fuel pres-
sure measurements .
IMPORTANT
During this operation, be sure to:
-refrain from smoking or bringing red hot objects
close to the working area,
-be careful of fuel splashes when disconnecting
the union.
IMPORTANT
Wear goggles with side protectors for this opera-
tion.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
116887
D4F

13A-12
FUEL SUPPLY
Fuel pressure: Check
K4M
13A
CHECK
aI - PREPARATION OPERATION FOR CHECK
aEnsure you have a checking tool (Mot. 1311-01) and
a “T” union (Mot. 1311-08).
II - TEST OPERATION
aDisconnect the fuel supply union from the injector
rail.
aConnect:
-the pipe fitted with a test pressure gauge (Mot.
1311-01) with the "T" union (Mot. 1311-08),
-the "T" union (Mot. 1311-08) on the injector rail, Special tooling required
Mot. 1311-01Pressure gauges and petrol
pressure measur ing unions.
Mot. 1311-08Union for taking fuel pres-
sure measurements .
IMPORTANT
During this operation, be sure to:
-refrain from smoking or bringing red hot objects
close to the working area,
-be careful of fuel splashes when disconnecting
the union.
IMPORTANT
Wear goggles with side protectors for this opera-
tion.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
116887
132333

13A-13
FUEL SUPPLY
Fuel pressure: Check
K4M
13A
-the injector rail fuel supply union to the "T" union
(Mot. 1311-08).
aStart the engine.
aRecord the pressure; this should be constant at 3.5
bar.
aSwitch off the engine.
III - FINAL OPERATION
aDisconnect the "T" union (Mot. 1311-08) from the in-
jector rail.
aConnect the fuel supply pipe union on the injector
rail.Note:
It may take a few seconds to obtain a correct
injector rail pressure reading.