2009 LAMBORGHINI GALLARDO Workshop Manual

5
L714 01 27 05
Fig.9
A
C
B
® Automobili Lamborghini S.p.A.
7KHLQIRUPDWLRQDQGSURFHGXUHVSXEOLVKHGEHORZDUHVWULFWO\FRQ¿GHQWLDODQGH[FOXVLYHO\IRUWKH/DPERUJKLQL'HDOHU1HWZRUNDQG$XWKRUL]HG6HUYLFH3RLQWV$OOFRS\ULJKWVDUHSURSHUW\RI$XWRPRELOL
/DPERUJKLQL6S$EDVHGRQFRS\ULJKWODZ$OORIWKH3')FKDSWHUVLQWKH:(%ZRUNVKRSPDQXDOVGHVFULEHGEHORZDUHEDVHGRQLQIRUPDWLRQDYDLODEOHDWWKHWLPHRISXEOLFDWLRQ7KHFRPSDQ\UHVHUYHV
WKH ULJKW WR PDNH XSGDWHV DQG PRGL¿FDWLRQV 7KH IROORZLQJ DUH SURKLELWHG UHSULQWLQJ UHSURGXFWLRQIRUZDUGLQJ WR XQDXWKRUL]HG SHRSOH DQGRU WKLUG SDUWLHV DQG WUDQVODWLRQ LQFOXGLQJ SDUWLDO ZLWKRXW
ZULWWHQDXWKRUL]DWLRQIURP$XWRPRELOL/DPERUJKLQL6S$
% )XHO¿OWHUDVVHPEO\
1.
 &RQQHFWWKHSLSHV A-Fig.9WRWKH¿OWHU B-Fig.9).
2.  7LJKWHQWKHVFUHZ C-Fig.9WKDWWLJKWHQVWKHFODPSVHFXULQJWKH¿OWHU
•  $VVHPEOHWKHOHIWVLGHEXONKHDG (081305).

1
L714 01 28 00
Fig.1
A
A
B
® Automobili Lamborghini S.p.A.
/HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
*HQHUDOGHVFULSWLRQRIWKHGLUHFWLQMHFWLRQV\VWHP',6
The
GLUHFWLQMHFWLRQV\VWHP',6 is comparable to the running of an indirect injection engine. The basic difference
is that in this case, the fuel is injected directly into the cylinder.
This system better optimizes the amount of fuel to be injected, so consumption – and consequently emissions – are reduced. Characteristics of the system • A low pressure pump having an operation range between 6 and 4 bar,
•  7ZRLQWDNHPDQLIROGVHTXLSSHGZLWKWZRDLUÀRZPHWHUVWKDWPHDVXUHWKHÀRZDQGWHPSHUDWXUHRIWKHDVSLUDWHG
air (one per manifold),
• Two high pressure pumps mechanically driven by the motion of the engine can reach a pressure varying
between EDU0,1DQGEDU0$; .
• High pressure injectors that directly inject the fuel into the cylinder crown.
• A special piston that allows a vortex to be created, inside of which the fuel vaporized at high pressure is
sprayed.
The system is designed for the following types of operation: •  VWRLFKLRPHWULFVWUDWL¿HGPL[WXUH
• homogeneous mixture,
• homogeneous and rich mixture.
,QRXUVSHFL¿FFDVH homogeneous operation is used:
IURPWRUSPLQVWRLFKLRPHWULFVWUDWL¿HGPL[WXUHHVSHFLDOO\DWORZVSHHGVDQGGXULQJWKHLJQLWLRQSKDVHVWR
help with emissions.Homogenous and rich running is used only when there is a demand for torque.
When running at low speeds, the injection system is further aided by a tumble system inside the intake manifold that
helps the vortex created by the design of the piston, ensuring that the quantity of injected fuel goes directly beneath the spark plug. In this way the mixture is optimized with a lower quantity of fuel.
The injection of fuel during the compression phase of the cylinder is managed electronically by two injection control
units, of which one works as the MASTER and the other as the SLAVE .
The injection system is controlled by two linear oxygen sensors that alter the amount of fuel according to the demand
of torque and engine rpm. There are also two latest generation three-way pre-catalytic converters ( A-Fig.1) (with two
oxygen sensors for their control) and two post-catalytic converters incorporated inside the silencer ( B-Fig.1).

2
L714 01 28 00
Fig.2
AB
C'
Fig.3
(
® Automobili Lamborghini S.p.A.
/HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
Funzionction ,QWDNH The
tumble throttle ( A-Fig.2) is opened depending on the position of the accelerator pedal.
To switch over intake ( B-Fig.2), the tumble throttle is open or closed depending on the point of operation:
• The intake switchover tumble WKURWWOH LV FORVHG LQ WKH PLGGOH ORDG UDQJH DQG USP VR WKH DVSLUDWHG DLU ÀRZV
inside the cylinder with a rotary movement, which has a positive effect on carburetion.
• As the load and rpm gradually rise, the air that can be aspirated only through the upper duct ( C-Fig.2) would no
ORQJHUVXI¿FH6RWKHQWKH tumble throttle opens the lower duct as well ( ')LJ).
,QMHFWLRQThe fuel is injected directly into the cylinder by the high pressure injector ( ()LJ) during intake.
1RWH
The energy necessary for evaporating the fuel is taken from the air contained inside the combustion chamber
that cools down. Thanks to this, it is possible to increase the compression ratio compared to that of an indirect injection engine.

3
L714 01 28 00
Fig.4 Fig.5
F
G
® Automobili Lamborghini S.p.A.
/HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
Carburetion
A relatively long time remains for carburetion with the injection of fuel during the intake phase.
Therefore, in the cylinder there is a homogeneous distribution of the mixture of injected fuel and aspirated air (
F-
Fig.4 ).
7KHDLUWRIXHOUDWLRLQWKHFRPEXVWLRQFKDPEHULV 
Combustion
,Q KRPRJHQHRXV RSHUDWLRQ WKH ¿UH SRLQW  G-Fig.5) has a determining effect on torque, consumption and
emissions.

4
L714 01 28 00
® Automobili Lamborghini S.p.A./HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
5SPOLPLWLQJGHYLFH
In normal operating conditions with operative temperatures TH2O 90°C and Toil 90°C, the limiting device is structured
as follows:
in neutral engine limited to 7800 rpm (3500 rpm only for JP and Korea)  st
gear USP
2 nd
gear 8550 rpm
3 rd
gear 8650 rpm
4 th
gear 8500 rpm
5 th
gear 8500 rpm
6 ty
gear USP
Reverse gear 6000 rpm
The values stated above are indicative and subject to changes introduced in the Factory.
1RWH It must however be remembered that when the vehicle is hot, idle speed is 680 rpm and it goes up to 820 rpm with the A/C on.
Control and power limitation strategies
The ECU controls rpm limitation using different maps, depending on the environmental conditions at the time: • with engine cold (Water temperature < 60°C) and with low Toil (Oil temperature < 40°C), the rpm are limited
• with engine hot (Water temperature > ƒ&WKHUSPDUHOLPLWHG

5
L714 01 28 00
Fig.6
AB
Fig.7
B
B
A
A
® Automobili Lamborghini S.p.A.
/HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
Fuel pump
There is only one electric fuel pump (
A-Fig.6) and it is in the right tank. This pump is controlled by an ECU ( B-Fig.6)
which in turn is controlled by the master control unit.
The pump has an operating pressure ranging between 4 and 6 bar, depending on the various operating conditions
of the vehicle.
The pump sends the fuel to the two high pressure pumps (which are mechanical) that compress the fuel and take the pressure to a value varying from 120 to 140 bar, according to vehicle operation.
Both the high and low pressure pumps are monitored by two sensors installed on the respective lines to prevent overpressure problems. Linear phase transformers
Linear phase transformers allow the engine phase to vary according to the torque required in order to always have optimum phasing.
In this version they are always enabled, and the phasing follows different maps according to the load and the atmospheric conditions. Piloting is performed by a solenoid valve ( A-Fig.7), which makes the oil pass inside the phase-changing gear.
This operation is managed by the injection control units that also receive the position of the camshaft through the
Hall effect sensors ( B-Fig.7) mounted on the camshafts:
• two sensors for the exhaust (one per cylinder bank)
• two sensors for the intake (one per cylinder bank)

6
L714 01 28 00
Fig.8
® Automobili Lamborghini S.p.A./HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
0LV¿ULQJ
7RSURFHVVGDWDWKHPLV¿ULQJV\VWHPQRORQJHUXVHVWKHSUHVVXUHVHQVRUVOLNH0< • WKHV\VWHPGLUHFWO\GHWHFWVPLV¿ULQJE\PHDQVRIWKHÀ\ZKHHOVHQVRUVLJQDO&$/&8/$7,1*WKHWRUTXHGHOLYHUHG
WR WKH FDPVKDIW ZH VD\ WKHUH LV D PLV¿UH LI WKH DFFHOHUDWLRQ± KHQFH WRUTXH ± FKDQJHV IURP RQH VHFWLRQ RI
phonic wheel to the next are different than expected.
There is no map of the expected torque, but the changes of delivered torque are analysed.
Accelerator pedal
The accelerator pedal arrives already factory-set. Once installed, it is the software that adapts it to the range of operation. When it is replaced, the total assembly is supplied. The pedal consists of two sensors that read the position: •  WKH¿UVWVHQGVWKHGDWDUHDGWRWKHPDVWHUFRQWUROXQLW
•  WKHVHFRQGFKHFNVRSHUDWLRQRIWKH¿UVWRQH .

7
L714 01 28 00
Fig.7
A
B
C
C
5
F
'
GH
GH
QL
1
M
O3
3
,
(
® Automobili Lamborghini S.p.A.
/HSURFHGXUHHOHLQIRUPD]LRQLSXEEOLFDWHGLVHJXLWRVRQRVWUHWWDPHQWHFRQ¿GHQ]LDOLHULYROWHHVFOXVLYDPHQWHDOOD5HWH'HDOHUH6HUYLFH3RLQW$XWRUL]]DWL/DPERUJKLQL7XWWLLGLULWWLG¶DXWRUHVRQRSURSULHWj
GL$XWRPRELOL /DPERUJKLQL 6S$ LQ EDVH DOOD OHJJH VXL GLULWWL G¶DXWRUH 7XWWL L FDSLWROL 3') GL FXL VL FRPSRQJRQR L PDQXDOL RI¿FLQD :(% GHVFULWWL GL VHJXLWR VL EDVDQR VXOOH LQIRUPD]LRQL GLVSRQLELOLDO
PRPHQWRGHOODSXEEOLFD]LRQH&RQULVHUYDGLDJJLRUQDPHQWRHPRGL¿FKH6RQRYLHWDWHODULVWDPSDODULSURGX]LRQHO¶LQROWURDSHUVRQHQRQDXWRUL]]DWHHRDWHU]HSHUVRQHODWUDGX]LRQHDQFKHSDU]LDOH
VHQ]DO¶DXWRUL]]D]LRQHVFULWWDGDSDUWHGL$XWRPRELOL/DPERUJKLQL6S$
Sensor
A
Speed sensor
B *HDUVSRVLWLRQVHQVRUV
C Secondary air pressure sensors
' Low fuel pressure sensor output
( Wiv pressure sensor output
F Oil pressure sensor output
G CAM sensors output
H Exhaust phase sensors output
, Intake phase sensors output
L Coolant temperature sensor output
M Air temperature sensor
1 A/C sensor
O Clutch pump sensor
3 $,5%$*VHQVRUV
Q Coolant level sensor
5 Oil level and temperature sensor