check engine LAMBORGHINI GALLARDO 2009 Owner's Manual

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The oxygen sensors are the sensors generating an electric signal according to the ratio between the oxygen inside
the exhaust gas and the oxygen inside the outside air. By means of these sensors it is possible to measure the deviation from the stoichiometric ratio (lambda ratio) of the air – fuel mixture sent to the cylinders.A. Pre-catalyst oxygen sensor (LINEAR)
B. Post-catalyst oxygen sensor (ON-OFF)
C. Catalyst
212))R[\JHQVHQVRURSHUDWLRQGLDJUDP SRVWFDWDO\WLFFRQYHUWHU • The main element is a ceramic body coated on both sides (Nernst cell).
• The coatings act as electrodes.
• One layer of electrodes is in contact with external air, the other with the exhaust gases.
• The difference between the oxygen contained in the outside air and that in the exhaust gases generates the
sensor’s voltage.
Use LaRa-AS  on both the MASTER and SLAVE engine injection control units to check the POST-
catalytic converter oxygen sensors. External air Exhaust gases
Electrodes
Engine control unit
Sensor voltage

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/,1($5R[\JHQVHQVRURSHUDWLRQGLDJUDP SUHFDWDO\WLFFRQYHUWHU Oxygen sensor adjustment with broadband oxygen sensor: •The pumping effect of the pump cell is a purely physical process.
• No mechanical component.
• The positive voltage of the pump cell attracts negative oxygen ions through the oxygen-permeable ceramic.
Use LaRa-AS   on both the MASTER and SLAVE engine injection control units to check the PRE-
catalytic converter oxygen sensors.

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3UHOLPLQDU\RSHUDWLRQV •Start the engine at idle speed with the hood closed for approximately 15 min. and with the A/C system fan
on maximum speed. This operation facilitates the movement of oil mixed with coolant and heats the system, preventing freezing during collection.
• Turn off the engine.
• Disassemble the engine compartment left side panels  and remove the LIE control unit.  
• Connect the LP pipe (BLUE) ( $)LJ RIWKHGUDLQHTXLSPHQWDQGUH¿OOWKHV\VWHPDWWKHRXWOHW %)LJ) on the
compressor’s intake pipe.
• Connect the HP pipe (RED) ( &)LJ RIWKHGUDLQHTXLSPHQWDQGUH¿OOWKHV\VWHPDWWKHRXWOHW ')LJ) on the
compressor’s delivery pipe.
'UDLQLQJWKHV\VWHP 1. Activate the equipment’s coolant collection phase.
2. Drain the system slowly to prevent the formation of ice inside the expansion valve and oil leakage from the
compressor.
3. Check the amount of oil collected in the equipment’s container.
&UHDWLQJWKHYDFXXP 1. After draining the system completely, bleed the air from the coolant charging cylinder and system.
A vacuum of approximately
LP=-0.98 (bar) and HP=-0.2 (bar) in the system is required according to the device
used.
Check system tightness for at least 15 minutes after eliminating all the air from the system.

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$ $VVHPEOLQJWKHKHDWLQJVROHQRLGYDOYH The heating system solenoid valve is located under the car tunnel. 1.Assemble the bracket ( $)LJ;$)LJ ) on the solenoid valve using the screw ( %)LJ) and the self-locking
nut ( &)LJ ;&)LJ ). Place new seals in between ( ')LJ).
2 . Insert the connector ( ()LJ) and then assemble the solenoid valve using the nut ( ))LJ;))LJ ) to secure
it to the chassis.
3. Unplug and reconnect the pipes ( *)LJ;*)LJ ) and secure the clamp ( +)LJ;+)LJ ).
• Assemble the propeller shaft (030705).
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• Bleed the engine cooling system  .
• Start the engine and check that while the A/C system is on HI, hot air issues from the air conditioning system air
vents.
• Assemble the central and rear FDUÀRRUV  .

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%  $VVHPEOLQJWKHKHDWLQJZDWHUSXPS 1. 3RVLWLRQWKHKHDWLQJV\VWHPORZÀRZSXPS ($)LJ ) under the car tunnel.
2. Connect the pump pipes ( %)LJ) acting on the clamps ( &)LJ).
3. Connect the connector ( ')LJ;')LJ ).
4. Tighten the bolts of the two clamps securing the pump to the chassis ( ()LJ;()LJ ).
• Assemble the propeller shaft (030705).
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• Fill the circuit and then bleed the engine cooling circuit (012106).
• Start the engine and check that while the A/C system is on HI, hot air issues from the air conditioning system
air vents.
• Assemble the central and rear FDUÀRRUV  .

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 )DVWHQWKHVSHFL¿FFODPS ()LJ) to connect pipe C4 to the union with pipe C3.
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Direct the pipe fastening clamp openings so that they are easy to access the next time they need to be disassembled.
• Assemble the propeller shaft (030705).
• Fill the circuit and then bleed the engine cooling system (012106).
• Start the engine and check that while the A/C system is on HI, hot air issues from the air conditioning system air
vents.
•  $VVHPEOHWKHUHDUDQGFHQWUHYHKLFOHÀRRUV  .

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 2Q WKH OHIW VLGH RI WKH SDVVHQJHU FRPSDUWPHQW WLJKWHQ WKH VSHFL¿F FODPSV ()LJ) to connect the three
heating system pipes ( OODQGO).
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Direct the pipe fastening clamp openings so that they are easy to access the next time they need to be disassembled.
• Assemble the propeller shaft (030705).
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• Fill the circuit and then bleed the engine cooling system (012106).
• Start the engine and check that while the A/C system is on HI, hot air issues from the air conditioning system air
vents.
•  $VVHPEOHWKHUHDUDQGFHQWUHYHKLFOHÀRRUV  .
• Assemble the center console end panels  .
• Assemble the center console ornament  .
• Assemble the BJA push-button panel unit  .
• Assemble the air conditioner grille  .
• Assemble the air conditioner control unit  .
• Assemble the multimedia system  .

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During braking the ABS function allows the modulation of the braking force effectively applied to each wheel, thus preventing one or more wheels from becoming blocked, which would otherwise cause the loss of control of the vehicle.
The control unit carries out the corrections to the braking by reading the relative speed of each wheel, obtained by special sensors (pick-up).
To guarantee a good signal quality, the distance between the pick-up and the phonic wheel must be between 0.9
÷ 1.0 mm. The electro-hydraulic control unit carries out all the corrections on the braking, using 4 ISO valves and 4
DUMP valves. When an ISO valve is closed, the disc brake calliper is isolated from the hydraulic pump.
The DUMP valve, on the other hand, is used to reduce the pressure of the corresponding disc brake calliper that
is present in the hydraulic circuit. If, during normal use of the vehicle, the ABS warning light on the dashboard is
switched on and the buzzer sounds at the same time, it means that the ABS control unit has found a fault in the
system. When the warning light is on the ABS does not work; this means that in the vehicle the braking system works
anyway, but the electronic control on the braking is deactivated. $%6V\VWHPYDFXXPUHFRYHU\SXPS
The electric vacuum recovery pump is positioned in the front bumper area and is controlled by the MASTER engine injection control unit only with the engine running.
Its operation is determined by a pressure sensor that calculates its drop and makes the pump cut in to maintain the vacuum. Its operation can be checked by means of the LaRa-AS engine control unit “01” Basic setting 8 (109000).

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C) Assembling the rear hood Assembling the engine hood support
Disassemble the engine hood and tighten the 2 screws ($)LJ) securing the brackets to the chassis.
Assembling the rear hood 1. Position the rear hood and secure it to the car using the 4 screws ( %)LJ) securing the 2 hinges ( &)LJ) (2
screws for each hinge).
2. Connect the wiring harness ( ')LJ) on the Rear View Camera and the rear wing.
• Assemble the hood support piston 3RLQW% .
• $VVHPEOHWKHULJKWVLGH¿QLVKLQJHOHPHQWLQWKHHQJLQHED\ (081305).
Check that the engine rear hood is correctly aligned with the other body components.

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10. Using a thickness gauge ( 2)LJ), check the distance between the window and the internal edges of the
engine hood: then secure the window onto the engine hood using cloth tape ( 3)LJ).
11. Position weights ( 4)LJ) along the edge of the window so that the silicone adheres well between all of the
various surfaces.
• Assemble the 2 engine hood grids (082705).

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