engine LAMBORGHINI MURCIÉLAGO 2009 Service Repair Manual
Page 859 of 1173
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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 $
' $ V V H P E O L Q J W K H O H I W O R Z H U G D V K E R D U G D V V H P E O \
1.
Tighten the 3 stud bolts ( $ ) L J ) securing the left lower dashboard assembly ( % ) L J ).
7 R D V V H P E O H D F F H V V W K H U L J K W V W X G E R O W V W K U R X J K W K H I U H H V S D F H O H I W E \ W K H U H P R Y H G V W H H U L Q J Z K H H O
F R Y H U D Q G D F F H V V W K H O H I W V W X G E R O W W K U R X J K W K H I U H H V S D F H O H I W E \ W K H U H P R Y H G O H I W V L G H F R Y H U
2. Assemble the engine hood opening lever ( & ) L J ) by securing with the relative screw ( ' ) L J ).
• Assemble the steering wheel cover .
• Assemble the left side cover 3 R L Q W % .
$ O Z D \ V W D N H W K H X W P R V W F D U H Q R W W R G D P D J H W K H O H D W K H U X S K R O V W H U \ G X U L Q J G L V D V V H P E O \ S U R F H G X U H V
Page 886 of 1173
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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 $
& $ 8 7 , 2 1 • $ Q \ L Q V S H F W L R Q U H P R Y D O L Q V W D O O D W L R Q R U U H S D L U Z R U N P X V W E H F D U U L H G R X W E \ T X D O L ¿ H G W H F K Q L F L D Q V
• ' R Q R W F D U U \ R X W W H V W V X V L Q J O L J K W V L J Q D O O H U V Y R O W P H W H U V R U R K P P H W H U V
• 5 H P R Y H W K H H O H F W U R V W D W L F F K D U J H E H I R U H W K H W H F K Q L F L D Q U H P R Y H V R U W R X F K H V W K H D L U E D J X Q L W ( O H F W U R V W D W L F
F K D U J H V R F F X U Z K H Q S D U W L F X O D U P H W D O H O H P H Q W V D U H W R X F K H G V X F K D V D Z D W H U S L S H K H D W L Q J S L S H R U D metal structure.
• 2 Q O \ L Q V S H F W W K H D L U E D J V L I W K H \ D U H L Q V W D O O H G R Q W K H Y H K L F O H 8 V H W K H V S H F L D O O \ G H V L J Q H G G L D J Q R V W L F V V \ V W H P 3 F ' L D J
• $ O Z D \ V G L V F R Q Q H F W W K H H O H F W U L F L W \ S R Z H U V X S S O \ Z K H Q Z R U N L Q J R Q D Q D L U E D J
• ) R O O R Z W K H E D W W H U \ G L V F R Q Q H F W L R Q L Q V W U X F W L R Q V S U R Y L G H G
• Disconnect the battery disconnect in the engine compartment.
• $ I W H U G L V F R Q Q H F W L Q J W K H E D W W H U \ Z D L W I R U D W O H D V W P L Q X W H V W R J L Y H W K H F R Q G H Q V H U V H Q R X J K W L P H W R discharge.
• ( Q V X U H Q R R Q H L V L Q V L G H W K H Y H K L F O H Z K H Q W K H E D W W H U \ L V U H F R Q Q H F W H G
• ) R O O R Z W K H L Q V W U X F W L R Q V S U R Y L G H G D I W H U F R Q Q H F W L Q J W K H E D W W H U \
• 7 K H D L U E D J P R G X O H V P X V W E H L Q V W D O O H G D V V R R Q D V W K H \ D U H X Q S D F N H G
• , I W K H Z R U N V H V V L R Q L V V W R S S H G L W L V D G Y L V D E O H W R U H S O D F H W K H X Q L W F R Q W D L Q L Q J W K H D L U E D J P R G X O H L Q L W V S D F N D J L Q J
• 1 H Y H U O H D Y H W K H D L U E D J P R G X O H X Q D W W H Q G H G
• ) R O O R Z L Q J U H P R Y D O N H H S W K H S D G G H G V L G H R I W K H D L U E D J P R G X O H I D F L Q J X S Z D U G V
• 1 H Y H U R S H Q R U U H S D L U D Q \ D L U E D J F R P S R Q H Q W V $ O Z D \ V X V H Q H Z F R P S R Q H Q W V
• 1 H Y H U X V H D L U E D J P R G X O H V W K D W K D Y H E H H Q V X E M H F W H G W R G D P D J H R U W K D W K D Y H I D O O H Q R Q K D U G V X U I D F H V
• 0 D U N D Q \ X Q R S H Q H G D L U E D J P R G X O H V D Q G V H Q G W R W K H P D Q X I D F W X U H U W R H Q V X U H W K H \ D U H G H V W U R \ H G V H Q G X V L Q J W K H Q H Z D L U E D J P R G X O H S D F N D J H
• ' R Q R W X V H J U H D V H G H W H U J H Q W R U V L P L O D U S U R G X F W V R Q D L U E D J P R G X O H V
• $ O Z D \ V U H S O D F H W K H P R G X O H L I W K H I D E U L F L V F R Q W D P L Q D W H G Z L W K R L O J U H D V H S D L Q W V R O Y H Q W V R U V L P L O D U products.
Page 893 of 1173
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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 $
$ ' L V D V V H P E O L Q J W K H S D V V H Q J H U D L U E D J P R G X O H
3 U H O L P L Q D U \ R S H U D W L R Q V •
Disconnect the battery disconnect inside the engine compartment and wait 2-3 minutes before carrying out any
operation.
• Remove the dashboard (086803).
0 R G X O H G L V D V V H P E O H
1. Unscrew the four module fastening screws
( $ ) L J ).
2 .
Disconnect the connectors ( % ) L J ) from the airbag module.
& $ 8 7 , 2 1
. H H S \ R X U V H O I E \ W K H V L G H R I W K H P R G X O H G X U L Q J W K H V H R S H U D W L R Q V D Q G Z H D U V F D O H S U R R I J O R Y H V
( D F K P R G X O H K D V J R W D Q L G H Q W L ¿ F D W L R Q O D E H O G H V L J Q H G W R D V V R F L D W H W K H P R G X O H Z L W K W K H Y H K L F O H L W ¶ V
¿ W W H G R Q
' R 1 2 7 L Q V W D O O W K H P R G X O H R Q D Q R W K H U Y H K L F O H
Page 962 of 1173
Copyright by PPG Industries Lacke GmbH Autor: Franco BusiaGrafik: Mike Rohde
PPG Industries Lacke GmbH
Franco Busia, Process Engineer and Technical Consultant
www.ppg.com
Diese Folien dü rfen nicht ohne Zustimmung
der Autoren in irgendeiner Weise verändert
oder benutzt werden.
Page 45
on behalf of Lamborghini S.p.A.
Page 963 of 1173
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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 $
( O H F W U L F D O H T X L S P H Q W
7 \ S H $ 9 Q H J D W L Y H W R J U R X Q G
Recharging systemAlternator and voltage regulator
Battery 12V – 90Ah – 420A
Current rate with engine off and switch deactivated 7 ÷ 12 mA Spark plug type: NGK IR KR8BI
Spark plugs - Distance between electrodes 0.7 ÷ 0.8
Page 969 of 1173
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Fig.1
A
B
Fig.2
EC
D
® 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 $
Alternator disassembly 3 U H O L P L Q D U \ R S H U D W L R Q V •
Disassemble the rear engine hood and the rear compartment (spoiler holder) (081303).
• Disassemble the silencer covers.
' L V D V V H P E O \
1. Disconnect the alternator wiring harness ( A-Fig.1).
2. Disconnect the vent pipe ( B-Fig.1) from the alternator cover after loosening the relative clamp.
3. Remove the auxiliary belt (010103).
4. Remove the alternator’s heat-proof panel ( C-Fig.2), unscrewing the screw ( D-Fig.2) and the 2 bolts ( E-Fig.2).
Page 973 of 1173
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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 $
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
Page 974 of 1173
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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 $
, J Q L W L R Q 6 \ V W H P
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.
Page 976 of 1173
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L824 09 05 00
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, J Q L W L R Q & R L O
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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).
Page 980 of 1173
1
L824 09 06 00
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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.