2009 LAMBORGHINI MURCIÉLAGO engine
[x] Cancel search: enginePage 973 of 1173
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Fig.1 Fig.2
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
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Signal Frame Management
7 K H W H U P ³ V L J Q D O I U D P H ´ L P S O L H V W K H J U R X S R I V L J Q D O V F R P L Q J I U R P W K H V H Q V R U R Q W K H F U D Q N V K D I W D Q G H D F K R I W K H V H Q V R U V R Q H D F K R I W K H F D P V K D I W V 6 L Q F H W K H V H V L J Q D O V K D Y H D Z H O O G H ¿ Q H G U H F L S U R F D O
S R V L W L R Q D O W R J H W K H U W K H \ V X S S O \ W K H / , ( F R Q W U R O X Q L W W K H H O H P H Q W V Q H F H V V D U \ I R U U H F R J Q L ] L Q J H Q J L Q H timing and obtaining the correct ignition and injection sequence.The same signals are also used by the control unit for operating the phase transformers.
Upon ignition, the control unit acknowledges the injection and ignition timing, which are fundamental for the
subsequent operation of all the strategies. This acknowledgement takes place on the basis of the interpretation
of the sequence of signals coming from the engine speed sensor (one which serves both systems) on the engine À \ Z K H H O D Q G I U R P W K H H Q J L Q H W L P L Q J V H Q V R U R Q W K H F D P V K D I W
7 K H U H L V D W R R W K H G S K R Q L F Z K H H O R Q W K H H Q J L Q H À \ Z K H H O W K H D Q J O H E H W Z H H Q W Z R F R Q V H F X W L Y H W H H W K L V W K H U H I R U H
10°. This wheel is read by an inductive pick-up that generates a sinusoidal wave.
A non-uniform length 4 toothed phonic wheel is splined on each camshaft (4) and read by Hall effect sensors that provide a panel 0-5V signal.
% R W K W K H F D P V K D I W D Q G À \ Z K H H O V L J Q D O V D Q G D U H F R Q Y H U W H G L Q W R G L J L W D O V L J Q D O V E \ W K H F R Q W U R O X Q L W X V L Q J D V H U L H V R I
AD converters. Based on these signals, the correct ignition (1-7-4-10-2-8-6-12-3-9-5-11) and injection sequence is
carried out. The cam positions and correct control of the phase transformers are also calculated.
The signal provided is of the sinusoidal type, it must be transformed into a digital signal using an A/D converter inside the control unit. 6 8 & 7 , 2 1 SMOT: Engine Speed and TDC Sensor Signal
SCAM 1-6: Cylinder Bank 1-6 Timing Sensor Signal
SCAM 7-12: Cylinder Bank 7-12 Timing Sensor Signal
( ; + $ 8 6 7 SMOT: Engine Speed and TDC Sensor Signal
SCAM 1-6: Cylinder Bank 1-6 Timing Sensor Signal
SCAM 7-12: Cylinder Bank 7-12 Timing Sensor Signal ( 1 * , 1 ( 3 + $ 6 ( 6 ( 1 6 2 5 ( ; + $ 8 6 7
( 1 * , 1 ( 3 + $ 6 ( 6 ( 1 6 2 5 6 8 & 7 , 2 1
3 + $ 6 ( 7 5 $ 1 6 ) 2 5 0 ( 5
& 2 1 7 5 2 / 9 $ / 9 (
3 + $ 6 ( 7 5 $ 1 6 ) 2 5 0 ( 5 6
( 1 * , 1 ( 5 3 0 6 ( 1 6 2 5
, * 1 , 7 , 2 1 6 ( 4 8 ( 1 & ( 5 3 0 6 ( 1 6 2 5 6 8 & 7 , 2 1 & $ 0 ( ; + $ 8 6 7 & $ 0 6 8 & 7 , 2 1 & $ 0 ( ; + $ 8 6 7 & $ 0
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® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ 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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
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The ignition control mainly consists of determining the spark advance required according to the engine operating
conditions and its actuation by the piloting of the power transistor incorporated in the power module inside the engine control unit.
The spark advance calculated on the basis of the engine load and speed is then corrected according to different engine operating conditions.
Each coil primary is supplied by the battery voltage through a relay which, in its turn is controlled by the engine
control unit: The connection to round takes place through the power transistor.
The engine control unit, after a cylinder TDC signal, sends a signal, with a certain delay, to the relevant power
module, that starts at that moment (conduction start moment) to send current to the coil primary circuit to bring the
value to about 6 Amperes (saturation current).
Obviously this moment varies in angle in relation to the bursting TDC of each cylinder since the dwell needed to
saturate the current in the coil primary circuit is constant, whereas the time required by the engine to make two revolutions (cycle) reduces as the rotation speed increases. 7 K H H Q J L Q H F R Q W U R O X Q L W V L J Q D O U H P D L Q V X Q W L O W K H P R P H Q W R I W K H G H V L U H G V S D U N D G Y D Q F H R Q W K H V S H F L ¿ F F \ O L Q G H U
The moment the control unit removes the signal from the power module, the current in the coil primary circuit is cut
off. This, by induction, generates a sudden rise in voltage on the secondary circuit that is discharged to ground, generating a spark on the ignition spark plug. ( D F K F \ O L Q G H U K D V D F R L O ¿ W W H G G L U H F W O \ R Q W R W K H V S D U N S O X J Z L W K R X W D K L J K Y R O W D J H F D E O H
7 K H F R L O V D U H R S H U D W H G Z K H Q W K H H Q J L Q H L V V W D U W H G L Q D G Y D Q F H E \ D I H Z F \ F O H V Z L W K U H V S H F W W R ignition.
, Q D V L P L O D U Z D \ W K H F R L O V D U H R S H U D W H G I R U D I H Z D G G L W L R Q D O F \ F O H V D I W H U W K H H Q J L Q H K D V E H H Q
stopped.
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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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
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, J Q L W L R Q & R L O
7 K H L J Q L W L R Q F L U F X L W L V V W D W L F W \ S H Z L W K L Q G X F W L Y H G L V F K D U J H W K H K L J K Y R O W D J H L V S U R Y L G H G E \ V L [ S H Q F L O F R L O V ¿ W W H G G L U H F W O \
onto the cylinder head for each cylinder bank. The coils have a magnetic closed circuit with the windings in a plastic F R Q W D L Q H U L P P H U V H G L Q H S R [ \ U H V L Q ( D F K F R L O L V G L U H F W O \ F R Q Q H F W H G W R W K H V S D U N S O X Jwithout high voltage cables.
3 H Q F L O L J Q L W L R Q F R L O ) L J
A. Ignition switch
B. Battery
C. Power supply relay
D. Pencil coil
E. Spark plug
F. Engine control unit
The coil primary circuit is supplied by relay, controlled by the engine control unit after it has acknowledged the SMOT signal coming from the relevant sensor (thus with engine rotating driven by the starter motor).
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® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ 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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
/ , (
The LIE system is a system that integrates a digital electronic ignition spark advance and static timing system with an electronic indirect fuel injection system of the multiple timed sequential type.
According to the engine structure, which has the cylinders divided into two cylinder banks, two complete systems that
are suitably synchronized with each other have been applied, and each controls a cylinder bank of six cylinders. As
a consequence there are two engine control units, connected to each other by the CAN line, managing the injection
and ignition of each cylinder bank and four throttle bodies connected to each other by CAN lines and electronically
controlled by LIE control units through the ETB control units. These control units are also connected by the CAN line
to the GFA control unit that co-ordinates and manages many functions especially concerning diagnostic. The system can be divided into the following sub-systems: ELECTRICAL/ELECTRONIC SYSTEM
FUEL SUPPLY SYSTEM
INTAKE SYSTEM
THROTTLE BODIES GENERAL DESCRIPTION
EXHAUST SYSTEM
ANTI-EVAPORATION DEVICES The system can properly acquire the following parameters: •Engine speed;
• Correct TDC sequence of the cylinders (injection timing);
• Absolute pressure in the intake manifold;
• Throttle position and position variation;
• Accelerator pedal position;
• Intake air temperature;
• Engine coolant temperature;
• Exhaust gas internal temperature;
• Mixture strength;
• Battery voltage;
• Possible start-up of air conditioner;
• Pressure in the exhaust manifold;
• Pressure in the fuel anti-evaporative circuit.
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) L J ) L J
V
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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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
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7 0 $ 3 $ E V R O X W H 3 U H V V X U H 6 H Q V R U The absolute pressure sensors are positioned on left engine cylinder head intake.
Absolute pressure sensor
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A. Intake manifold
% T. MAP Sensor (air temperature and absolute pressure)
Absolute pressure sensor operating principle
The sensitive element, enclosed in a plastic container, consists of a Wheatstone bridge stenciled on a very thin ceramic plate (diaphragm) installed on the lower part of an annular support.
The diaphragm separates two chambers: In the lower chamber, which is sealed, a vacuum has been created, whereas the upper chamber is in direct communication through piping with the measuring point.
When operating, the pressure that generates on the measuring point produces a mechanical action on the sensor G L D S K U D J P Z K L F K G H À H F W V W K X V Y D U \ L Q J W K H U H V L V W R U Y D O X H V
Since the power supply is constant (+5 V), the resistor variation causes an output voltage variation ( 9 ) L J ) which
is proportional to the pressure value.
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Fig.1
A
B
® 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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Starter disassembly 3 U H O L P L Q D U \ R S H U D W L R Q V •
Remove the engine (010003)
Starter disassembly
1. Unscrew the nuts with washers ( A-Fig.1) which mount the starter to the crankcase.
2. Extract the starter ( B-Fig.1).
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® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
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W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
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1 H Y H U D W W H P S W W R M X P S V W D U W D F D U Z L W K D I U R ] H Q E D W W H U \ L W F R X O G E U H D N D Q G F D X V H I X U W K H U G D P D J H
1 H Y H U X V H I D V W E D W W H U \ F K D U J H U V I R U H P H U J H Q F \ V W D U W V
) D L O X U H W R R E V H U Y H W K H S U R F H G X U H V G H V F U L E H G E H O R Z F D Q O H D G W R L Q M X U \ R U G D P D J H G X H W R V S L O O D J H R I E D W W H U \ D F L G R U R Y H U O R D G L Q J R I W K H Y H K L F O H H O H F W U L F D O V \ V W H P
1 H Y H U G L V F R Q Q H F W W K H V \ V W H P E D W W H U \ Z K H Q W K H H Q J L Q H L V U X Q Q L Q J
' R Q R W V W D U W X S W K H H Q J L Q H E H I R U H F R Q Q H F W L Q J W K H E D W W H U \
• ' R Q R W X V H I D V W F K D U J H U V W R V W D U W W K H H Q J L Q H 8 V H H L W K H U V H S D U D W H E D W W H U L H V R U W K H V S H F L D O D X [ L O L D U \ E D W W H U \ W R V W D U W
the engine;
• & K H F N F D U H I X O O \ H [ D F W S R O D U L W \ R I W K H E D W W H U \ W H U P L Q D O V Z K H Q V W D U W L Q J X S Z L W K D Q D X [ L O L D U \ E D W W H U \
• $ O Z D \ V G L V F R Q Q H F W W K H J U R X Q G F D E O H ¿ U V W I U R P W K H E D W W H U \ Q H J D W L Y H W H U P L Q D O Z K H Q G L V F R Q Q H F W L Q J W K H E D W W H U \ I U R P
the system;
• % H I R U H F R Q Q H F W L Q J W K H E D W W H U \ W R W K H V \ V W H P P D N H V X U H W K D W W K H O D W W H U L V Z H O O L Q V X O D W H G
• ' L V F R Q Q H F W W K H V \ V W H P E D W W H U \ Z K H Q U H F K D U J L Q J Z L W K H [ W H U Q D O H T X L S P H Q W
• ' L V F R Q Q H F W W K H H [ W H U Q D O U H F K D U J L Q J H T X L S P H Q W I U R P W K H Q H W Z R U N E H I R U H U H P R Y L Q J L W V F O D P S V I U R P W K H E D W W H U \
terminals;
• : U R Q J S R O D U L ] D W L R Q R I W K H H O H F W U R Q L F F R Q W U R O X Q L W V S R Z H U V X S S O \ Y R O W D J H I R U H [ D P S O H E D W W H U \ Z U R Q J S R O D U L ] D W L R Q
can cause breakage.
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® Automobili Lamborghini S.p.A.
7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ 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
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
, Q F D V H R I H Q J L Q H V W D U W L Q J E \ P H D Q V R I H [ W H U Q D O E D W W H U \ P D N H V X U H W K D W W K H H [ W H U Q D O E D W W H U \ K D V D Q H T X L Y D O H Q W Y R O W D J H 9 D Q G W K D W W K H F R Q Q H F W L Q J H O H F W U L F D O F D E O H V K D Y H D V H F W L R Q F R U U H V S R Q G L Q J W R P P at least.
7 K H S R L Q W V K R Z Q L Q W K H ¿ J X U H ) L J D Q G D Q \ H Q J L Q H J U R X Q G S R L Q W F D Q E H X V H G W R F R Q Q H F W D Q H [ W H U Q D O E D W W H U \
charger. 3 U R F H H G D V I R O O R Z V • remove the ignition key;
• V Z L W F K R I I D O O O L J K W V D Q G D Q \ R W K H U H O H F W U L F D O G H Y L F H L Q W K H F D U
• F R Q Q H F W W K H H P H U J H Q F \ E D W W H U \ S R V L W L Y H W H U P L Q D O W R W K H S R L Q W V K R Z Q L Q W K H ¿ J X U H ) L J E \ P H D Q V R I W K H
cable;
• connect the emergency battery negative terminal to any engine ground point;
• W X U Q W K H L J Q L W L R Q N H \ W R S R V L W L R Q
• select the maximum temperature on the air conditioning system control panel;
• V W D U W X S W K H H Q J L Q H W K H Q G L V F R Q Q H F W W K H H P H U J H Q F \ E D W W H U \ U H P R Y L Q J ¿ U V W W K H F R Q Q H F W L R Q W R J U R X Q G W K H Q W K H
positive terminal.
: K L O H F R Q Q H F W L Q J W K H E D W W H U \ ¶ V S R V L W L Y H S R O H E H Y H U \ F D U H I X O 1 2 7 W R W R X F K W K H F D U E R Q E X O N K H D G
, U U H S D U D E O H G D P D J H F R X O G E H F D X V H G W R W K H Y H K L F O H ¶ V F R Q W U R O X Q L W V .