Starting LAMBORGHINI MURCIÉLAGO 2009 Service Repair Manual

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Fuel pump
The two fuel pumps are supplied by a relay controlled by LIE control unit. For safety reasons the pump relevant to
cylinder bank 1-6 is controlled by LIE control unit of cylinder bank 7-12 and vice versa. They are roller type positive displacement pumps with permanent magnet energizing.
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with the pump at a standstill. This valve is especially important since by holding the system pressure it prevents fuel vapor from forming (vapor-lock) that causes damage when starting up with a warm engine.
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Fuel Filter
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It consists of an aluminum foil wrapping and an internal polyurethane support around which is wound a powerful
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The arrow indicates the assembly direction (Fig.2).

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Due to security reasons concerning the presence of throttle bodies the fuel pumps and injectors of cylinder bank 1-6
are supplied by relays controlled by LIE 7- 12 control unit and vice versa.
The pumps are stopped:
• If the engine speed drops under 350 rpm approx.;
• After a certain time (about 3 seconds) with the key to MAR position without starting up (timed enable);
Self-learning strategy
Self-learning only affects the optimum air percentage for the idle speed (0 to 60 seconds). The strength is kept constant with the target strength (value requested by the system under that particular operation condition).
The range of operation of the pre-catalytic oxygen sensor (linear) is 0.8 to 1.20.
If the value is below 1.00, the system is RICH; otherwise, the system is POOR.
The self-learning values of the linear oxygen sensors are always saved in the control unit during normal
operation.

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The aim is to maintain the engine rpm at around the memorised value, depending on the start-up temperature andthe start-up time itself. A throttle value and an ideal advance value are associated with each target rpm (which forms
a set point around which the system works to maintain the pre-established rpm).
• Start-up with cold engine
During the ignition transient with cold engine an offset on throttle bodies opening is managed according to
engine coolant temperature/ignition seconds.
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When starting with a warm engine, a throttle bodies opening offset is applied based on the engine coolant temperature / ignition seconds and engine oil temperature in order to bring the engine to at least 1,000 rpm
and prevent vapor-lock. Following these operations the system goes to idle conditions where the control unit
automatically maintains the target rpm by carrying out the necessary corrections on the advance and air.

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Check the following fundamental aspects to prevent malfunctioning and ensure the correct system operation: •Keep the climate control system control unit away from sources of high heat, e.g. in a painting oven (remember
that it is good practice to remove all electronic control units from the vehicle in this case);
• Remember to disconnect the negative battery terminal and all the electronic modules before performing
electrical welding operations on the vehicle (injection-ignition control unit, coil power modules, climate control / air conditioning system control unit, etc.);
• Do not apply voltage higher than or different from the vehicle battery voltage, e.g. when jump starting using an
auxiliary battery make sure that the voltage is the same and the connection polarity is correct;
• Always ensure the utmost cleanliness during coolant circuit maintenance operations. This is because particles
of dirt could obstruct the coolant passage through the expansion valve and cause poor system operation;
• Store receiver-driers in a dry place to ensure long life;
• Regularly check the conditions, alignment and tension of the compressor drive belt. Furthermore, check the
compressor oil level;
• Make sure that there are no leaks from the heating or air conditioning system;
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• Check that the electrical connections of the various components and the system wiring are in good condition
(sensors, climate control unit, compressor, etc.);
• Always make sure that the coolant has been drained and collected in a suitable device before disconnecting
any line.

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5XQQLQJLQWKHSDUNLQJEUDNHSDGV Running-in is especially important for the version with a Carbon Ceramic braking system.
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•Brake several times starting at a speed of 50 km/h, pulling the parking brake until the car stops (position the
gear in neutral).
•Repeat the operation 4-5 times, waiting 4-5 minutes between each operation.
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•Position the car at the center of the ramp and pull the parking brake lever to the seventh/eighth click: the car
must remain stopped.
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•Pull the lever in the passenger compartment with a NOVATECH dynamometer between your hand and the lever
(positioned at the middle of the handgrip).
•Check that the maximum force exerted on the lever does not exceed 400 N at the tenth click.
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If necessary, ballast the car up to 2,000 kg of the maximum laden mass as required by type-approval regulations.

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The system offers the possibility of running a set of diagnostic tests by means of special button combinations without WKHXVHRIVSHFL¿FGLDJQRVWLFWRROV Starting
User diagnostics is started by turning the ignition switch to ON and holding the RECIRCULATION button pressed at WKHVDPHWLPH Quitting
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• button test status;
• sensor test status;
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The&+(&./,671B/3B0< screen (Fig.5) shows all of the operation parameters for the system’s various
functions for controlling the engine:
5SP : Engine speed
(FX2Q'HF ECU operation time starting when the key is turned to ON (cylinder bank 1)
(FX2Q'HF ECU operation time starting when the key is turned to ON (cylinder bank 2)
$YY06HF Engine cranking time
 &UDQN3KDVH Fuel enrichment during cranking meter (goes from 0 to 255 and stops)
.7-&N3KV7+R Fuel enrichment meter percentage during phase 1 according to water temperature
7-(QG Final engine injection time, cylinder banks 1 and 2
9%DWW Battery voltage (must be between 11 and 15 Volts)
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 3*5HTXHVW Purge solenoid opening percentage requested by system
 3XUJHB$FWXDO'XW\ Purge solenoid opening percentage based on the system’s request (maximum 99%)
3XUJHB7S Estimated fuel density in the air arriving from the purge solenoid; the higher the value, the more fuel
arrives from the canister. Maximum acceptable value: 0.065 (beyond this value the canister is considered full and
there is probably an engine malfunction)
3XUJHB4%&3XUJH Estimated fuel vapor mass arriving from purge solenoid toward engine
3IXHO Fuel pressure inside tank (must be negative)
 6$(QG Final spark advance, cylinder bank 1 and 2
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(QJLQH6\QF 1 indicates synchronism OK (the system is correctly synchronized); if it is not synchronized, the
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signals (s cam); if everything is OK, synchronism is equal to 1, if a correlation is missing or a signal is lost, the sync goes to 0)
99&RQI2XW Determines the types of accessories activated at that moment, e.g. VVT, ECS, etc. (*)
0DS Intake manifold pressure
3%DUR Barometric pressure (GFA altitude pressure)
7DLU Air temperature in intake manifold
,GOH0DS&RPS Automatic MAP compensation (the system signals an error for variations above 4.5%)

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