Engine control LAMBORGHINI GALLARDO 2009 Service 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
2 1 2 ) ) R [ \ J H Q V H Q V R U R S H U D W L R Q G L D J U D P S R V W F D W D O \ W L F F R Q Y H U W H U • 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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/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
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/ , 1 ( $ 5 R [ \ J H Q V H Q V R U R S H U D W L R Q G L D J U D P S U H F D W D O \ W L F F R Q Y H U W H U 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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Air conditioning system
7 K H D L U F R Q G L W L R Q L Q J V \ V W H P S U R Y L G H G Z L W K W K H Y H K L F O H K R O G V W K H W H P S H U D W X U H D Q G D L U À R Z L Q W K H S D V V H Q J H U F R P S D U W P H Q W
to the values set by the driver and the passenger. The air conditioning system has the following features:•
automatic temperature-ventilation-air distribution control
• recirculation
• D L U À R Z G L V W U L E X W L R Q
The system’s operation is controlled by a special electronic control unit set by the driver and passenger on the
control unit’s push-button panel.
The system has an air conditioning unit ( B-Fig.1 W K D W P R G L ¿ H V W K H W H P S H U D W X U H D Q G K X P L G L W \ R I W K H D L U H Q W H U L Q J W K H
vehicle by means of two radiators (driver and passenger side) connected to a heating system that receives heat from
the engine (green lines) and an evaporator, part of an air conditioning system (red and blue lines).
Air conditioner diagram (Fig.1)
A. Air conditioner control unit
B. Air conditioning unit
C. Engine coolant pump
D. Engine
E. Air conditioner compressor
F. Air conditioner pressure sensor
G. Condenser
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Air conditioner control unit
The automatic dual zone control unit is built into the push-button panel on the console. It separately controls the following parameters on the LH and RH sides of the passenger compartment:
3 D V V H Q J H U F R P S D U W P H Q W W H P S H U D W X U H
Seat temperature (if function is present)
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These parameters, except for the temperature, are manually controlled by pressing the relative buttons (an LED comes on) and using the knobs (A-Fig.9). The display ( B-Fig.9) shows the value.
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7 K H W H P S H U D W X U H F D Q E H D G M X V W H G E H W Z H H Q ƒ & D Q G ƒ & , I W K H S U R J U D P P H G Y D O X H H [ F H H G V W K H V H O L P L W V on the display, LOor HI appears and the temperature is no longer adjusted.
The
button completely blocks air from entering the passenger compartment.
The
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side windows as quickly as possible. The
button excludes the air conditioner. As a result, the passenger compartment temperature cannot be
O R Z H U W K D Q W K H R X W V L G H W H P S H U D W X U H 7 K H G H K X P L G L ¿ H U L V D O V R H [ F O X G H G 7 K H Z L Q G R Z V F R X O G W K H U H I R U H V W H D P X S The
button activates automatic operation. The temperature, the amount and distribution of the air are
automatically controlled to achieve the desired passenger compartment temperature as quickly as possible and to maintain it.
Ventilation is possible in the passenger compartment even when the engine key is on OFF by simply keeping the
F R Q W U R O X Q L W R Q R I I E X W W R Q S U H V V H G
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/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
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The control unit continuously adjusts the system according to driver and passenger requests (RH and LH). In particular:•It acquires information on internal (RH and LH) and outside temperature and on solar irradiation intensity by
means of special sensors.
• It sets the speed of the air entering the passenger compartment by means of the fan.
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• It controls air recirculation by means of an actuator.
• It controls the incoming hot air temperature by means of two solenoid valves (RH and LH) and a circulation
pump.
• It controls compressor activation.
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The control unit ( A-Fig.10) implements the heat regulating strategies according to input received from the following
sensors:• outside air temperature ( B-Fig.10)
• internal air temperature (RH and LH) ( C-Fig.10)
• Vent outlet air temperature ( D-Fig.10)
• Solar irradiation ( E-Fig.10)
The control unit memory contains a resident program, composed of a set of strategies, each of which manages a V S H F L ¿ F I X Q F W L R Q R I W K H F R Q W U R O V \ V W H P
The strategies process a set of parameters by means of the above inputs and memorized data maps. These
parameters control the system actuators (outputs), that is those devices causing the system to reach and hold a comfortable temperature inside the passenger compartment. The devices are the following:• Air distribution actuator ( F-Fig.10)
• Motor fan ( G-Fig.10)
• Recirculation actuator ( H-Fig.10)
• ( Q J L Q H F R R O D Q W À R Z U D W H V R O H Q R L G Y D O Y H V I-Fig.10)
• Engine coolant pump ( L-Fig.10)
• Compressor ( M-Fig.10)
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* $ & F R P S U H V V R U G L V D V V H P E O \ 3 U H O L P L Q D U \ R S H U D W L R Q V • Remove the vehicle engine (010003).
• Remove the left exhaust manifold (013103).
' L V D V V H P E O L Q J W K H F R P S U H V V R U 1. Disconnect the delivery pipes ( $ ) L J ) and the intake pipes ( % ) L J ) from the compressor by removing the
screws ( & ) L J ).
2. Disconnect the connector ( ' ) L J ).
3. Remove the 3 screws ( ( ) L J ) that secure the compressor to the engine.
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: K H Q U H P R Y L Q J W K H ¿ [ L Q J V F U H Z V E H V X U H W R D O V R U H P R Y H W K H F R Q Q H F W R U V X S S R U W E U D F N H W ( ) ) L J ).
4. Remove the clamp ( * ) L J ), releasing its rubber covering ( + ) L J ).
5. Extract the compressor complete with the control shaft toward the front part of the car.
6. Disassemble the shaft, loosening the lock nut ( , ) L J ) and unscrewing the shaft from the compressor’s
housing.
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3 U H O L P L Q D U \ R S H U D W L R Q V •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) ( $ ) L J R I W K H G U D L Q H T X L S P H Q W D Q G U H ¿ O O W K H V \ V W H P D W W K H R X W O H W % ) L J ) on the
compressor’s intake pipe.
• Connect the HP pipe (RED) ( & ) L J R I W K H G U D L Q H T X L S P H Q W D Q G U H ¿ O O W K H V \ V W H P D W W K H R X W O H W ' ) L J ) on the
compressor’s delivery pipe.
' U D L Q L Q J W K H V \ V W H P 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.
& U H D W L Q J W K H Y D F X X P 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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5.
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heating system pipes ( O O D Q G O ).
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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.
• $ V V H P E O H W K H U H D U D Q G F H Q W U H Y H K L F O H À R R U V .
• 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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® Automobili Lamborghini S.p.A.
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Lifting System
This is an hydraulic device enabling to lift the front part of the vehicle when driving at low speed, to allow access to areas with uneven surfaces. The system is composed of the following components: •
Front shock absorbers;
• Electronic control unit (GFA);
• Ascent or descent control button;
• Connecting hoses and electric wires.
Lifting system layout (Fig.1)
A. Front shock absorbers
B. Electronic control unit (GFA)
C. Ascent or descent control button
D. Lifting System
The system can be activated up to the maximum speed of 70 Km/h (30 Km/h for Japan); when it reaches this speed threshold the system will automatically go to the DOWN position. The system is activated:• with engine on only by means of LDAS-32 (109100) to perform diagnosis and operational tests.
• with a speed lower than 70 km/h (30 km/h for Japan).
• when the thrust mode function is not activated.
The system is deactivated:• when there is a problem on the ABS ESP system.
• when there is a problem concerning the UP or DOWN sensor.
• when the electric pump absorption is too high.
• when an incorrect vehicle speed signal is read.
The warning light on the dashboard will blink quickly to signal errors (it blinks slowing during raising/lowering).
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3. / R R V H Q W K H W Z R F O D P S V ( ) L J ) securing the lifting system circuit pipe to the front part of the chassis.
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5. Remove the lifting system circuit pipe ( + ) L J ) and disconnect it from the control unit , ) L J ). / H I W K D Q G G U L Y H
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