fuel INFINITI FX35 2008 Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2008, Model line: FX35, Model: INFINITI FX35 2008Pages: 3924, PDF Size: 81.37 MB
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![INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1155
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FUEL PUMP
DescriptionINFOID:0000000001327057
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the sign](/img/42/57017/w960_57017-2394.png "INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1155
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FUEL PUMP
DescriptionINFOID:0000000001327057
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the sign")
FUEL PUMPEC-1155
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FUEL PUMP
DescriptionINFOID:0000000001327057
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal
from the camshaft position sensor (PHASE), it knows
that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when
the ignition switch is ON, the engine stalls. The EC M stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly dr ive the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000001327058
Specification data are reference values.
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
Fuel pump control Fuel pump relay
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and cranking Operates.
When engine is stopped Stops in 1.5 seconds.
Except as shown above Sto ps .
PBIB1508E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY For 1 seconds after turning ignition switch: ON
Engine running or cranking
ON
Except above OFF
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![INFINITI FX35 2008 Service Manual
EC-1156
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
Wiring Diagram
INFOID:0000000001327059
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use](/img/42/57017/w960_57017-2395.png "INFINITI FX35 2008 Service Manual
EC-1156
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
Wiring Diagram
INFOID:0000000001327059
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use")
EC-1156
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
Wiring Diagram
INFOID:0000000001327059
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring in put/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
TBWM1363E
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Page 2397 of 3924
![INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1157
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Diagnosis ProcedureINFOID:0000000001327060
1.CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed ho](/img/42/57017/w960_57017-2396.png "INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1157
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Diagnosis ProcedureINFOID:0000000001327060
1.CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed ho")
FUEL PUMPEC-1157
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Diagnosis ProcedureINFOID:0000000001327060
1.CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose (1) with two fingers.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check voltage between ECM terminal 113 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E8.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R terminal 40 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 11.
TER- MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
11 3 G Y / R F u e l p u m p r e l a y [Ignition switch: ON]
For 1 second after turning ignition switch ON
[Engine is running]
0 - 1.5V
[Ignition switch: ON]
More than 1 second after turning ignition switch ON BATTERY VOLTAGE
(11 - 14V)
Fuel pressure pulsation should
be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
PBIB3245E
Voltage: Battery voltage
PBIB1187E
Voltage: Battery voltage
PBIB1926E
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![INFINITI FX35 2008 Service Manual
EC-1158
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
4.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between IPDM E/R and ECM
>> Repair open](/img/42/57017/w960_57017-2397.png "INFINITI FX35 2008 Service Manual
EC-1158
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
4.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between IPDM E/R and ECM
>> Repair open")
EC-1158
< SERVICE INFORMATION >[VK45DE]
FUEL PUMP
4.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between IPDM E/R and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect “fuel level sensor unit and fuel pump” harness con- nector.
4. Turn ignition switch ON.
5. Check voltage between “fuel level sensor unit and fuel pump”
terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 6.
6.CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse.
3. Check 15A fuse.
OK or NG
OK >> GO TO 7.
NG >> Replace fuse.
7.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector E8.
2. Check harness continuity between IPDM E/R terminal 39 and “fuel level sensor unit and fuel pump” termi-
nal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, B6
PBIB1507E
Voltage: Battery voltage should exist for 1 sec- ond after ignition switch is turned ON.
PBIB0795E
Continuity should exist.
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![INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1159
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Harness for open or short between IPDM E/R
and “fuel level sensor unit and fuel pump”
>> Repair harness or con](/img/42/57017/w960_57017-2398.png "INFINITI FX35 2008 Service Manual
FUEL PUMPEC-1159
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Harness for open or short between IPDM E/R
and “fuel level sensor unit and fuel pump”
>> Repair harness or con")
FUEL PUMPEC-1159
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Harness for open or short between IPDM E/R
and “fuel level sensor unit and fuel pump”
>> Repair harness or connectors.
9.CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between “fuel level sensor unit and fuel pump” terminal 3 and ground.
Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to power in harness or connectors.
10.CHECK FUEL PUMP
Refer to EC-1159, "
Component Inspection".
OK or NG
OK >> GO TO 11.
NG >> Replace fuel pump.
11 .CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-17.
NG >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000001327061
FUEL PUMP
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.
Removal and InstallationINFOID:0000000001327062
FUEL PUMP
Refer to FL-4.
Continuity should exist.
Resistance: 0.2 - 5.0
Ω [at 25 °C (77 °F)]
SEC918C
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![INFINITI FX35 2008 Service Manual
EC-1176
< SERVICE INFORMATION >[VK45DE]
IGNITION SIGNAL
7. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to releas e fuel pressure, or fuel pres-
sure appli](/img/42/57017/w960_57017-2415.png "INFINITI FX35 2008 Service Manual
EC-1176
< SERVICE INFORMATION >[VK45DE]
IGNITION SIGNAL
7. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to releas e fuel pressure, or fuel pres-
sure appli")
EC-1176
< SERVICE INFORMATION >[VK45DE]
IGNITION SIGNAL
7. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to releas e fuel pressure, or fuel pres-
sure applies again during the following procedure.
8. Start engine.
9. After engine stalls, crank it two or three times to release all fuel pressure.
10. Turn ignition switch OFF.
11. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
12. Remove ignition coil and spark plug of the cylinder to be checked.
13. Crank engine for five seconds or more to remove combustion gas in the cylinder.
14. Connect spark plug and harness connector to ignition coil.
15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm between the edge of the spark plug and grounded metal portion
as shown in the figure.
16. Crank engine for about three seconds, and check whether spark is generated between the spark plug and the grounded metal
portion.
CAUTION:
Do not approach to the spar k plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the el ectrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
17. If NG, replace ignition coil with power transistor.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals 1 and 2.
Removal and InstallationINFOID:0000000001327072
IGNITION COIL WITH POWER TRANSISTOR
Refer to EM-187.
Spark should be generated.
PBIB1482E
PBIB2325E
Resistance: Above 1 M
Ω [at 25 °C (77 °F)]
PBIB0794E
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![INFINITI FX35 2008 Service Manual
EC-1196
< SERVICE INFORMATION >[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000001327089
Idle Speed and Ignition TimingINFOID:000000000](/img/42/57017/w960_57017-2435.png "INFINITI FX35 2008 Service Manual
EC-1196
< SERVICE INFORMATION >[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000001327089
Idle Speed and Ignition TimingINFOID:000000000")
EC-1196
< SERVICE INFORMATION >[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000001327089
Idle Speed and Ignition TimingINFOID:0000000001327090
*: Under the following conditions:
Air conditioner switch: OFF
Electric load: OFF (Lights, heater fan & rear window defogger)
Steering wheel: Kept in straight-ahead position
Calculated Load ValueINFOID:0000000001327091
Mass Air Flow SensorINFOID:0000000001327092
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorINFOID:0000000001327093
Engine Coolant Te
mperature SensorINFOID:0000000001327094
Fuel Tank Temperature SensorINFOID:0000000001327095
Fuel pressure at idling kPa (kg/cm2, psi) Approximately 350 (3.57, 51)
Target idle speed No load* (in P or N position) 650
±50 rpm
Air conditioner: ON In P or N position 700 rpm or more
Ignition timing In P or N position 12 ° ± 5 ° BTDC
Condition Calculated load value% (Using CONSULT-III or GST)
At idle 14.0 - 33.0
At 2,500 rpm 12.0 - 25.0
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle 1.0 - 1.3V*
Mass air flow (Using CONSULT-III or GST) 2.0 - 6.0 g·m/sec at idle*
7.0 - 20.0 g·m/sec at 2,500 rpm*
Temperature °C ( °F) Resistance k Ω
25 (77) 1.800 - 2.200
Temperature °C ( °F) Resistance k Ω
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Temperature °C ( °F) Resistance k Ω
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
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![INFINITI FX35 2008 Service Manual
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1197
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Crankshaft Position Sensor (POS)INFOID:0000000001327096
Refer to
EC-910, "Component Ins](/img/42/57017/w960_57017-2436.png "INFINITI FX35 2008 Service Manual
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1197
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Crankshaft Position Sensor (POS)INFOID:0000000001327096
Refer to
EC-910, \"Component Ins")
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1197
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Crankshaft Position Sensor (POS)INFOID:0000000001327096
Refer to
EC-910, "Component Inspection".
Camshaft Position Sensor (PHASE)INFOID:0000000001327097
Refer to EC-915, "Component Inspection".
A/F Sensor 1 HeaterINFOID:0000000001327098
Heated Oxygen sensor 2 HeaterINFOID:0000000001327099
Throttle Control MotorINFOID:0000000001327100
Fuel InjectorINFOID:0000000001327101
Fuel PumpINFOID:0000000001327102
Resistance [at 25 °C (77 °F)] 2.3 - 4.3 Ω
Resistance [at 25°C (77 °F)] 5.0 - 7.0 Ω
Resistance [at 25°C (77 °F)] Approximately 1 - 15 Ω
Resistance [at 10 - 60°C (50 - 140 °F)] 13.5 - 17.5 Ω
Resistance [at 25°C (77 °F)] 0.2 - 5.0 Ω
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EM-1
ENGINE
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SECTION EM
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CONTENTS
ENGINE MECHANICAL
VQ35DE
SERVICE INFORMATION .. ..........................
4
PRECAUTIONS .............................................. .....4
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
4
Precaution for Drain Engine Coolant and Engine
Oil ..............................................................................
4
Precaution for Disconnecting Fuel Piping .................4
Precaution for Removal and Disassembly ................4
Precaution for Inspection, Repair and Replace-
ment ..........................................................................
4
Precaution for Assembly and Installation ..................5
Precaution for Angle Tightening ................................5
Precaution for Liquid Gasket .....................................5
PREPARATION ...................................................7
Special Service Tool ........................................... ......7
Commercial Service Tool ..........................................9
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ............................
12
NVH Troubleshooting - Engine Noise ................. ....12
Use the Chart Below to Help You Find the Cause
of the Symptom .......................................................
12
DRIVE BELTS ....................................................14
Checking Drive Belts ........................................... ....14
Tension Adjustment ................................................14
Removal and Installation .........................................15
AIR CLEANER AND AIR DUCT ........................17
Component .......................................................... ....17
Removal and Installation .........................................17
Changing Air Cleaner Filter .....................................18
INTAKE MANIFOLD COLLECTOR ...................19
Component .......................................................... ....19
Removal and Installation .........................................19
INTAKE MANIFOLD ...........................................24
Component .......................................................... ....24
Removal and Installation .........................................24
EXHAUST MANIFOLD AND THREE WAY
CATALYST ........................................................
26
Component ..............................................................26
Removal and Installation .........................................26
OIL PAN AND OIL STRAINER .........................30
Component (2WD Models) ......................................30
Removal and Installation (2WD Models) .................30
Component (AWD Models) ......................................35
Removal and Installation (AWD Models) .................36
IGNITION COIL .................................................42
Component ..............................................................42
Removal and Installation .........................................42
SPARK PLUG (PLATINUM-TIPPED TYPE) .....43
Component ..............................................................43
Removal and Installation .........................................43
FUEL INJECTOR AND FUEL TUBE ................45
Component ..............................................................45
Removal and Installation .........................................45
ROCKER COVER .............................................51
Component ..............................................................51
Removal and Installation .........................................51
FRONT TIMING CHAIN CASE .........................54
Removal and Installation .........................................54
TIMING CHAIN ..................................................64
Component .......................................................... ....64
Removal and Installation .........................................65
CAMSHAFT .......................................................83
Component ..............................................................83
Removal and Installation .........................................84
Valve Clearance ......................................................91
OIL SEAL ..........................................................97
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EM-2
Removal and Installation of Valve Oil Seal .............97
Removal and Installation of Front Oil Seal .............97
Removal and Installation of Rear Oil Seal ..............98
CYLINDER HEAD ............................................100
On-Vehicle Service .............................................. ..100
Component ............................................................101
Removal and Installation .......................................101
Disassembly and Assembly ...................................105
Inspection After Disassembly ................................107
ENGINE ASSEMBLY .......................................112
Component (2WD Models) .................................. ..112
Removal and Installation (2WD Models) ...............112
Component (AWD Models) ....................................117
Removal and Installation (AWD Models) ...............117
CYLINDER BLOCK .........................................122
Component .......................................................... ..122
Disassembly and Assembly ...................................123
How to Select Piston and Bearing .........................134
Inspection After Disassembly ................................138
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
149
Standard and Limit .............................................. ..149
VK45DE
SERVICE INFORMATION ..........................
160
PRECAUTIONS .............................................. .160
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ..
160
Precaution for Drain Engine Coolant and Engine
Oil ..........................................................................
160
Precaution for Disconnecting Fuel Piping ..............160
Precaution for Removal and Disassembly .............160
Precaution for Inspection, Repair and Replace-
ment .......................................................................
160
Precaution for Assembly and Installation ..............161
Parts Requiring Angle Tightening ..........................161
Precaution for Liquid Gasket .................................161
PREPARATION .............................................. .163
Special Service Tool ............................................ ..163
Commercial Service Tool ......................................164
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ..........................
167
NVH Troubleshooting - Engine Noise .................. ..167
Use the Chart Below to Help You Find the Cause
of the Symptom .....................................................
167
ENGINE ROOM COVER ..................................169
Component .......................................................... ..169
Removal and Installation .......................................169
DRIVE BELTS ..................................................170
Component .......................................................... ..170
Checking Drive Belts .............................................170
Tension Adjustment ...............................................170
Removal and Installation ...................................... .170
Component ...........................................................171
Drive Belt Auto Tensioner and Idler Pulley ...........172
AIR CLEANER AND AIR DUCT .......................173
Component .......................................................... .173
Removal and Installation .......................................173
Changing Air Cleaner Filter ...................................174
INTAKE MANIFOLD .........................................175
Component .......................................................... .175
Removal and Installation .......................................176
EXHAUST MANIFOLD AND THREE WAY
CATALYST .......................................................
179
Component .......................................................... .179
Removal and Installation .......................................179
OIL PAN AND OIL STRAINER ........................183
Component .......................................................... .183
Removal and Installation .......................................183
IGNITION COIL .................................................187
Component .......................................................... .187
Removal and Installation .......................................187
SPARK PLUG (PLATINUM-TIPPED TYPE) ....188
Component .......................................................... .188
Removal and Installation .......................................188
FUEL INJECTOR AND FUEL TUBE ................190
Component .......................................................... .190
Removal and Installation .......................................190
ROCKER COVER .............................................196
Component .......................................................... .196
Removal and Installation .......................................196
TIMING CHAIN .................................................199
Component .......................................................... .199
Removal and Installation .......................................200
CAMSHAFT ......................................................211
Component .......................................................... .211
Removal and Installation .......................................211
Valve Clearance ....................................................218
OIL SEAL ..........................................................222
Removal and Installation of Valve Oil Seal ...........222
Removal and Installation of Front Oil Seal ........... .222
Removal and Installation of Rear Oil Seal ............224
CYLINDER HEAD .............................................226
On-Vehicle Service .............................................. .226
Component ...........................................................227
Removal and Installation .......................................227
Disassembly and Assembly ..................................229
Inspection After Disassembly ................................232
ENGINE ASSEMBLY ..................................... ..237
Component .......................................................... .237
Removal and Installation .......................................237
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