2009 LAMBORGHINI GALLARDO Engine control
[x] Cancel search: Engine controlPage 429 of 1659
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$ ' L V D V V H P E O L Q J W K H O H I W I X H O W D Q N 3 U H O L P L Q D U \ R S H U D W L R Q V •Empty the fuel tank
• Disassemble the engine unit .
• Disassemble the control unit plate .
' L V D V V H P E O L Q J W K H O H I W I X H O W D Q N 1. Disconnect the following pipes by removing the corresponding clamps •Rear air conditioner pipe ( $ ) L J ).
• Power steering circuit pipes ( % ) L J ).
• Brake vacuum pump pipe ( & ) L J ).
2. Disassemble the bulkhead ( ' ) L J ), removing the corresponding mounting screws ( ( ) L J ).
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% ' L V D V V H P E O L Q J W K H U L J K W I X H O W D Q N 3 U H O L P L Q D U \ R S H U D W L R Q V •Empty the fuel tank .
• Disassemble the engine unit .
• Disassemble the control unit plate .
' L V D V V H P E O L Q J W K H U L J K W I X H O W D Q N 1. Loosen the 2 screws ( % ) L J ) to remove the rear water pipe ( $ ) L J ).
2. Disassemble the bulkhead ( & ) L J ), removing the corresponding mounting screws ( ' ) L J ).
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& ' L V F R Q Q H F W L Q J W K H I X H O W D Q N F R Q Q H F W L R Q S L S H V 3 U H O L P L Q D U \ R S H U D W L R Q V •Empty the fuel tank .
• Disassemble the engine unit .
• Disassemble the control unit plate .
' L V F R Q Q H F W L Q J W K H I X H O W D Q N F R Q Q H F W L R Q S L S H V 1. On the left side, disconnect the following pipes by removing the corresponding clamps: •Rear air conditioner pipe ( $ ) L J )
• Power steering circuit pipes ( % ) L J ).
• Brake vacuum pump pipe ( & ) L J ).
2. Loosen the 2 screws ( ( ) L J ) to remove the rear water pipe ( ' ) L J ) on the right side.
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3 U H O L P L Q D U \ R S H U D W L R Q V • Turn off the engine and remove the ignition key from the instrument cluster.
• Disconnect the battery (091500).
• Disassemble the bench (086803).
• Disassemble the control unit plate (098103)
( P S W \ L Q J W K H W D Q N
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1. Loosen 4 screws on each plate ( B-Fig.1) to remove the 2 fuel tank plates on either side ( A-Fig.1).
2. Disconnect the fuel pump connector on the right ( C-Fig.1 D Q G W K H À R D W F R Q Q H F W R U R Q W K H O H I W C-Fig.1).
3. Disconnect the pipe with the smallest diameter ( D-Fig.1) from the connection pipes on the two tanks and
connect an extractor pump.
It is advisable to connect the extractor pump to the pipe with the smallest diameter because this allows the fuel to be extracted directly from the bottom of the tank.
, W L V D G Y L V D E O H W R F D U U \ R X W W K L V S U R F H G X U H H V S H F L D O O \ Z K H Q W K H U H L V D V L J Q L ¿ F D Q W D P R X Q W R I I X H O L Q W K H W D Q N
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® Automobili Lamborghini S.p.A.
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The anti-evaporation system prevents the fuel vapors, which consist of the lightest fractions of the hydrocarbons that form in the tank, from discharging into the atmosphere and being suctioned again to be burned.
The system operates especially when the outside temperature is high and the fuel temperature rises, thus increasing the tendency to evaporate. 2 S H U D W L Q J 3 U L Q F L S O H
7 K H I X H O Y D S R U V L Q W K H W D Q N D U H F R Q Y H \ H G E \ P H D Q V R I D À R D W L Q J Y D O Y H L Q V W D O O H G R Q W K H W D Q N W R D F D Q L V W H U Z K L F K F D Q
absorb them when the engine is off. 7 K H À R D W L Q J Y D O Y H K D V W K H I R O O R Z L Q J I X Q F W L R Q V •
It prevents the fuel from reaching the canister in the case of hard acceleration/deceleration when the car has a
full tank, or from spilling from the tank, in case the car rolls over;
• It allows the vapors to pass from the tank to the canister;
• It enables to discharge into the atmosphere any excess pressure inside the tank (electrovalve malfunctioning,
clogged pipe).
The canister is connected, by means of two solenoid valves, to two pipes that convey the vapors to the engine intake
manifolds. With the engine running, each solenoid valve is piloted in duty-cycle by the engine control unit according
to engine speed and load, thus putting the canister into communication with the intake manifold and allowing the
suction of the vapors inside the canister. At high engine speed, a venting valve, connecting the canister to the
D W P R V S K H U H E \ P H D Q V R I D Q D G H T X D W H D L U ¿ O W H U S U H Y H Q W V W K H F D Q L V W H U L P S O R V L R Q W K D W F D Q E H F D X V H G E \ W K H H Q J L Q H vacuum.
Fuel anti-evaporation system layout (Fig.1)
A. Fuel pump
B. Left fuel tank
C. Right fuel tank
D. Filter Canister
E. Diagnosis pump
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® Automobili Lamborghini S.p.A.
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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 purge valves (
A-Fig.2) empty the canister (that holds back the fuel gases that form inside the tank) positioned
on the right side of the engine compartment. 7 K H W Z R Y D O Y H V D U H ¿ W W H G X Q G H U Q H D W K W K H L Q W D N H P D Q L I R O G Z K L F K K D V W R E H U H P R Y H G W R J H W W R W K H Y D O Y H V The purge valves are driven by the injection control units according to a strategy set by their calibration software.
In the circuit is a pump positioned under the canister that controls the system’s seal; this pump is driven according to the operating time.
The control unit receives the information if the circuit is sealed, so the more time spent loading the pressure into the tank, the greater the possibility is that the system turns on the pilot lamp.
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A) Canister disassembly 3 U H O L P L Q D U \ R S H U D W L R Q V • Disassemble the rear hood support piston .
• Disassemble the right side bulkhead .
• Disassemble the water cooling circuit tank (nourice) with its support frame .
• Disassemble the vacuum tank .
• Disassemble the pannel upper .
' L V D V V H P E O L Q J W K H F D Q L V W H U1. Disconnect and remove the third brake light connection from its supports ( $ ) L J ) and the rear view camera
connection ( % ) L J ).
• Release the cylinder bank 1-5 engine injection control unit .
2. Loosen the 3 screws ( & ) L J ) and remove the engine injection control unit support bracket ( ' ) L J ). Disconnect
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procedure ( ( ) L J ).
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4. 6 H F X U H W K H F D Q L V W H U E \ W L J K W H Q L Q J W K H ¿ [ L Q J V F U H Z V ) ) L J ).
5. Connect the 2 pipes ( * ) L J ).
6.To secure the engine injection control unit support bracket ( + ) L J ), use 3 screws ( , ) L J ). Then connect the
remaining pipe ( - ) L J Z K L F K F R Q Q H F W V W K H D F W L Y H F D U E R Q ¿ O W H U Canister) to its pump.
• Insert the cylinder bank 1-5 engine injection control unit .