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INTAKE MANIFOLD COLLECTOR EM-23
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Revision: 2006 December 2006 FX35/FX45
Clamp hose at location of 3 to 7 mm (0.12 to 0.28 in) from hose end.
Electric Throttle Control Actuator
Install gasket with positioning no-protrusion surface upward or downward.
Tighten in numerical order as shown in the figure.
Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is discon-
nected. Refer to EC-84, "
Throttle Valve Closed Position
Learning" .
Perform the “Idle Air Volume Learning” and “Throttle Valve
Closed Position Learning” when electric throttle control actuator
is replaced. Refer to EC-84, "
Idle Air Volume Learning" .
KBIA0957E
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EM-24
[VQ35DE]
INTAKE MANIFOLD
Revision: 2006 December 2006 FX35/FX45
INTAKE MANIFOLDPFP:14003
ComponentsNBS003G7
Removal and InstallationNBS003G8
REMOVAL
1. Release fuel pressure. Refer to EC-86, "FUEL PRESSURE RELEASE" .
2. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLEC-
TOR" .
3. Remove fuel tube and fuel injector assembly. Refer to EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
4. Loosen mounting bolts and nuts in reverse order as shown in the figure to remove intake manifold with power tool.
5. Remove gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
1. Harness bracket 2. Intake manifold 3. Gasket
SBIA0487E
PBIC0778E
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INTAKE MANIFOLD EM-25
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INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the intake manifold mating sur-
face with a straightedge and a feeler gauge.
If it exceeds the limit, replace intake manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold
If stud bolts were removed, install them and tighten to the specified torque below.
Tighten all mounting bolts and nuts to the specified torque in two
or more steps in numerical order shown in the figure. Limit : 0.1 mm (0.004 in)
PBIC0870E
: 10.8 N·m (1.1 kg-m, 8 ft-lb)
1st step: : 7.4 N·m (0.75 kg-m, 5 ft-lb)
2nd step and after: : 29.0 N·m (3.0 kg-m, 21 ft-lb)
PBIC0778E
Page 2820 of 4462
![INFINITI FX35 2006 Service Manual EM-26
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
ComponentsNBS003G9
Removal and InstallationNBS003GA
REMOV INFINITI FX35 2006 Service Manual EM-26
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
ComponentsNBS003G9
Removal and InstallationNBS003GA
REMOV](/manual-img/42/57019/w960_57019-2819.png)
EM-26
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
ComponentsNBS003G9
Removal and InstallationNBS003GA
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have completely cooled down.
1. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
2. Drain engine coolant. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
4. Remove front and rear engine undercover and front cross bar with power tool.
5. Disconnect heated oxygen sensors 2 (bank 1 and bank 2) harness connectors.
1. Heated oxygen sensor 2 (bank 1) 2. Three way catalyst (right bank) 3. Gasket
4. Air fuel ratio sensor 1 (bank 1) 5. Exhaust manifold cover (right bank) 6. Exhaust manifold (right bank)
7. Exhaust manifold (left bank) 8. Exhaust manifold cover (left bank) 9. Three way catalyst (left bank)
10. Air fuel ratio sensor 1 (bank 2) 11. Heated oxygen sensor 2 (bank 2)
PBIC3103E
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![INFINITI FX35 2006 Service Manual EXHAUST MANIFOLD AND THREE WAY CATALYST EM-27
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6. Using the heated oxygen sensor wrench (SST), remove heated oxyg INFINITI FX35 2006 Service Manual EXHAUST MANIFOLD AND THREE WAY CATALYST EM-27
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Revision: 2006 December 2006 FX35/FX45
6. Using the heated oxygen sensor wrench (SST), remove heated oxyg](/manual-img/42/57019/w960_57019-2820.png)
EXHAUST MANIFOLD AND THREE WAY CATALYST EM-27
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Revision: 2006 December 2006 FX35/FX45
6. Using the heated oxygen sensor wrench (SST), remove heated oxygen sensors 2 (bank 1 and bank 2).
CAUTION:
Be careful not to damage heated oxygen sensor.
Discard any heated oxygen sensor which has been
dropped onto a hard surface such as a concrete floor;
replace with a new sensor.
7. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3, "
EXHAUST SYSTEM" .
8. Remove three way catalysts (right and left bank).
9. Disconnect air fuel ratio sensor 1 (bank 1 and bank 2) harness connectors and remove harness clip.
10. Using the heated oxygen sensor wrench (SST), remove air fuel ratio sensor 1 (bank 1 and bank 2).
CAUTION:
Be careful not to damage air fuel ratio sensor.
Discard any air fuel ratio sensor which has been dropped
onto a hard surface such as a concrete floor; replace with
a new sensor.
11. Remove water pipe and heater pipe on both right and left side. Refer to CO-29, "
WATER OUTLET AND
WATER PIPING" .
12. Remove exhaust manifold cover (right and left bank).
13. Loosen mounting nuts in the reverse order as shown in the fig- ure to remove exhaust manifold with power tool.
NOTE:
Disregard the numerical order No. 7 and 8 in removal.
14. Remove gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
KBIA1740E
SBIA0575E
PBIC2042E
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![INFINITI FX35 2006 Service Manual EM-28
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the exhaust manifold mating INFINITI FX35 2006 Service Manual EM-28
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the exhaust manifold mating](/manual-img/42/57019/w960_57019-2821.png)
EM-28
[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 December 2006 FX35/FX45
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the exhaust manifold mating sur-
face with a straightedge and a feeler gauge.
If it exceeds the limit, replace exhaust manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Manifold Gasket
Install in direction shown below. (Follow same procedure for
both banks.)
Locate thick side of port connecting part on right side from tech-
nician’s view.
Locate round press in thick side of port connecting part above
center level line of port.
Exhaust Manifold
If stud bolts were removed, install them and tighten to the specified torque below.
Install exhaust manifold and tighten mounting bolts in numerical
order as shown in the figure.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shows second step. Limit : 0.3 mm (0.012 in)
PBIC1096E
KBIA1051E
: 14.7 N·m (1.5 kg-m, 11 ft-lb)
PBIC2042E
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EXHAUST MANIFOLD AND THREE WAY CATALYST EM-29
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Air Fuel Ratio Sensor and Heated Oxygen Sensor
CAUTION:
Before installing a new air fuel ratio sensor and new heated oxygen sensor, clean exhaust system
threads using heated oxygen sensor thread cleaner tool (Commercial Service Tool: J-43897-18 or
J-43897-12) and apply anti-seize lubricant.
Do not over torque air fuel ratio sensor and heated oxygen sensor. Doing so may cause damage to
air fuel ratio sensor and heated oxygen sensor, resulting in the “MIL” coming on.
Page 2824 of 4462
![INFINITI FX35 2006 Service Manual EM-30
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 December 2006 FX35/FX45
OIL PAN AND OIL STRAINERP F P : 1111 0
Components (2WD Models)NBS003GB
Removal and Installation (2WD Models)NBS003GC
REMO INFINITI FX35 2006 Service Manual EM-30
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 December 2006 FX35/FX45
OIL PAN AND OIL STRAINERP F P : 1111 0
Components (2WD Models)NBS003GB
Removal and Installation (2WD Models)NBS003GC
REMO](/manual-img/42/57019/w960_57019-2823.png)
EM-30
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 December 2006 FX35/FX45
OIL PAN AND OIL STRAINERP F P : 1111 0
Components (2WD Models)NBS003GB
Removal and Installation (2WD Models)NBS003GC
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
To remove oil pan (lower) only, take step 5, then step 20. Removal of step 1, hood assembly (step 2) and step
4 are unnecessary.
1. Remove front tire.
2. Remove hood assembly. Refer to BL-13, "
HOOD" .
3. Remove front and rear engine undercover with power tool.
4. Remove front cross bar with power tool. FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
5. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:
Perform this step when the engine is cold.
1. Oil pan gasket (rear) 2. Oil pan (upper) 3. O-ring
4. Oil pan gasket (front) 5. Oil filter 6. Connector bolt
7. Oil cooler 8. O-ring 9. Relief valve
10. Oil pressure switch 11. Bracket 12. Oil strainer
13. Drain plug 14. Drain plug washer 15. Oil pan (lower)
16. Rear plate 17. Crankshaft position sensor (POS) 18. Seal rubber
19. Rear cover plate
SBIA0587E