2007 INFINITI FX35 sensor

EM-170
[VK45DE]
PREPARATION
Revision: 2006 July 2007 FX35/FX45
(—)
Valve seat cutter set Finishing valve seat dimensions
(—)
Piston ring expander Removing and installing piston ring
(—)
Valve guide drift Removing and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer (1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d
1 : 6.0 mm (0.236 in) dia.
d
2 : 10.2 mm (0.402 in) dia.
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen
sensor (Use with anti-seize lubricant shown
below.)
a: J-43897-18 (18 mm dia.) for zirconia
heated oxygen sensor
b: J-43897-12 (12 mm dia.) for titania
heated oxygen sensor
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
(Kent-Moore No.)
Tool name Description
S-NT048
S-NT030
S-NT015
S-NT016
AEM488
AEM489

AIR CLEANER AND AIR DUCT EM-177
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
AIR CLEANER AND AIR DUCTPFP:16500
ComponentsNBS003HU

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003HV
REMOVAL
1. Remove engine cover with power tool. Refer to EM-173, "ENGINE ROOM COVER" .
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect vacuum hose and PCV hose.
4. Remove air duct (inlet), power duct, air cleaner case and mass air flow sensor assembly, air duct and res- onator assembly disconnecting their joints.

Add marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case. CAUTION:
Handle mass air flow sensor with following cares.

Do not shock it.

Do not disassemble it.
1. Power duct 2. Blind plug 3. Clip
4. Air duct (inlet) 5. Air cleaner case 6. Mounting rubber
7. Resonator 8. Air cleaner filter 9. Air cleaner case
10. O-ring 11. Mass air flow sensor 12. Air duct and resonator assembly
13. Vacuum hose 14. PCV hose
A. To VIAS control solenoid valve B. To rocker cover (left bank)
PBIC4551E

EM-178
[VK45DE]
AIR CLEANER AND AIR DUCT
Revision: 2006 July 2007 FX35/FX45

Do not touch its sensor.
INSPECTION AFTER REMOVAL
Inspect air duct and resonator assembly for crack or tear.

If anything found, replace air duct and resonator assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.

Align marks. Attach each joint. Screw clamps firmly.
Changing Air Cleaner FilterNBS003HW
REMOVAL
1. Remove air duct (inlet), power duct, air cleaner case and mass air flow sensor assembly.
2. Remove air cleaner filter from air cleaner case.
INSTALLATION
Install in the reverse order of removal.

EXHAUST MANIFOLD AND THREE WAY CATALYST EM-183
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
ComponentsNBS003HZ

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003I0
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-173, "
ENGINE ROOM COVER" .
2. Remove front and rear engine undercovers with power tool.
3. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly, air duct and resonator assembly. Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
4. Remove front cross bar. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
5. Drain engine coolant from radiator. Refer to CO-38, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
6. Remove radiator. Refer to CO-41, "
RADIATOR" .
1. Air fuel ratio sensor 1 (bank 2) 2. Exhaust manifold cover (right bank) 3. Exhaust manifold (right bank)
4. Gasket 5. Exhaust manifold (left bank) 6. Exhaust manifold cover (left bank)
7. Air fuel ratio sensor 1 (bank 1) 8. Three way catalyst cover (right bank) 9. Three way catalyst (right bank)
10. Heated oxygen sensor 2 (bank 2) 11. Gasket 12. Three way catalyst cover (left bank)
13. Heated oxygen sensor 2 (bank 1) 14. Three way catalyst (left bank) 15. Mounting bracket
16. Mounting bracket
A. Protrusion for installation confirma-
tion.
:Above
PBIC4549E

EM-184
[VK45DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 July 2007 FX35/FX45
7. Remove drive belts. Refer to EM-174, "DRIVE BELTS" .
8. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 as follows:
a. Disconnect air fuel ratio sensor 1 and heated oxygen sensor 2 harness connectors.
b. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 on both bank with heated oxygen sensor wrench (SST).
CAUTION:

Be careful not to damage air fuel ratio sensor 1 and
heated oxygen sensor 2.

Discard any air fuel ratio sensor 1 and heated oxygen
sensor 2 which have been dropped onto a hard surface
such as a concrete floor: replace with a new one.
9. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3, "
EXHAUST SYSTEM" .
10. Disconnect A/C piping from A/C compressor, then remove A/C compressor with power tool. Refer to AT C -
139, "Components" .
11. Remove alternator and bracket. Refer to SC-24, "
CHARGING SYSTEM" .
12. Remove exhaust front tube with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
13. Remove steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-18, "
POWER STEERING GEAR AND LINKAGE" .
14. Remove three way catalysts (right and left bank).
15. Remove exhaust manifold covers. (right and left bank)
PBIC2333E
PBIC2334E

EM-186
[VK45DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 July 2007 FX35/FX45
Exhaust Manifold

Install exhaust manifold and tighten mounting nuts in numerical
order as shown in the figure.
NOTE:
Tighten mounting nuts No. 1 to 4 in two steps. The numerical
order No. 9 to 12 shown second steps.
Air Fuel Ratio Sensor and Heated Oxygen Sensor

Install air fuel ratio sensors and heated oxygen sensors in the original position.

Install referring the following if the installation positions cannot
be identified.
CAUTION:

Before installing a new air fuel ratio sensor and heated oxy-
gen sensor, clean exhaust system threads using oxygen
sensor thread cleaner (commercial service tool: J-43897-18
or J-43897-12), and apply anti-seize lubricant (commercial
service tool).

Do not over torque air fuel ratio sensor and heated oxygen sensor. Doing so may cause damage to
the heated oxygen sensor, resulting in “MIL” coming on.
A : Left bank
B : Right bank
: Engine front
PBIC3300E
Glass tube color Air fuel ratio sensor 1 : Black
Heated oxygen sensor 2 : White
PBIC2652E

OIL PAN AND OIL STRAINER EM-187
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
OIL PAN AND OIL STRAINERP F P : 1111 0
ComponentsNBS003I1

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003I2
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
1. Remove front road wheels and tires.
2. Remove hood assembly. Refer to BL-13, "
HOOD" .
3. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
4. Remove front and rear engine undercovers with power tool.
5. Drain engine oil. Refer to LU-27, "
Changing Engine Oil" .
CAUTION:

Perform this step when engine is cold.
1. Oil pan 2. O-ring 3. Crankshaft position sensor (POS)
4. Baffle plate 5. O-ring 6. Baffle plate
7. Oil pressure switch 8. Gasket 9. Oil strainer
10. Drain plug 11. Drain plug washer 12. O-ring
13. Oil cooler 14. Connector bolt 15. Oil filter
16. O-ring 17. Axle pipe 18. O-ring
19. Rear plate cover 20. Relief valve
A. Oil pan side B. Refer to LU-29
C. Refer to LU-28
PBIC4556E

EM-188
[VK45DE]
OIL PAN AND OIL STRAINER
Revision: 2006 July 2007 FX35/FX45

Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-38, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
7. Remove drive belts. Refer to EM-174, "
DRIVE BELTS" .
8. Remove auto tensioner of power steering oil pump belt. Refer to EM-176, "
Drive Belt Auto Tensioner and
Idler Pulley" .
9. Remove power steering oil pump with piping connected, and temporarily secure it aside with ropes or equivalent. Refer to PS-30, "
POWER STEERING OIL PUMP" .
10. Remove A/C compressor with piping connected, and temporarily secure it aside with ropes or equivalent. Refer to ATC-139, "
Components" .
11. Remove A/C compressor fitting bolts, and install A/C compressor temporarily on vehicle side with ropes or equivalent.
12. Remove harness of lower side of oil pan.
13. Remove crankshaft position sensor (POS) from transmission. CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble it.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
14. Install engine slinger and hang engine assembly to secure position. Refer to EM-243, "
ENGINE ASSEM-
BLY" .
15. Remove front suspension member with power tool. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
16. Remove front final drive assembly. Refer to FFD-13, "
FRONT FINAL DRIVE ASSEMBLY" .
17. Remove oil filter. Refer to LU-28, "
OIL FILTER" .
18. Disconnect oil cooler water hoses, and remove oil cooler water pipe and oil cooler. Refer to LU-29, "
OIL
COOLER" .
19. Remove oil pan as the follows:
a. Remove rear plate cover.
b. Remove transmission joint bolts which pierce oil pan. Refer to AT- 2 6 9 , "
Removal and Installation (AWD
Models)" .
c. Loosen mounting bolts with power tool in reverse order as shown in the figure.
NOTE:
Disregard the numerical order No. 11 and 17 in removal.
PBIC0194E