2007 INFINITI FX35 width

EC-802
[VK45DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionNBS004JZ
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC)” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC)” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:

B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)

A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)

MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionNBS004K0

Vehicle driven distance: More than 5,000 km (3,107 miles)

Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)

Atmospheric temperature: 20 - 30 °C (68 - 86 °F)

Engine coolant temperature: 75 - 95 °C (167 - 203 °F)

Transmission: Warmed-up
–After the engine is warmed up to normal operating temperature, drive vehicle until “ATF TEMP SE 1” (A/T
fluid temperature sensor signal) indicates more than 60 °C (140 °F).

Electrical load: Not applied
–Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.

Engine speed: Idle
Inspection ProcedureNBS004K1
NOTE:
Perform “DATA MONITOR (SPEC)” mode in maximum scale display.
1. Perform EC-738, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1”, “A/F ALPHA-B2” and “MAS A/F SE-B1” in “DATA MONITOR (SPEC)” mode with
CONSULT-II.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-803, "
Diagnostic Procedure" .
SEF601Z

DTC P0011, P0021 IVT CONTROL EC-825
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
DTC P0011, P0021 IVT CONTROLPFP:23796
DescriptionNBS0042O
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-
noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake
valve to increase engine torque in low/mid speed range and output in high-speed range.
COMPONENT DESCRIPTION
Intake Valve Timing Control Solenoid Valve
Intake Valve Timing (IVT) control solenoid valve is activated by ON/
OFF pulse duty (ratio) signals from the ECM.
The IVT control solenoid valve changes the oil amount and direction
of flow through intake valve timing control unit or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
Sensor Input signal to ECM function ECM Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed
Intake valve
timing control Intake valve timing control
solenoid valve
Intake valve timing control position sensor Intake valve timing signal
Engine coolant temperature sensor Engine coolant temperature
Wheel sensor Vehicle speed*
PBIB3276E
PBIB1842E

EC-852
[VK45DE]
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P0075, P0081 IVT CONTROL SOLENOID VALVEPFP:23796
Component DescriptionNBS004AD
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
CONSULT-II Reference Value in Data Monitor ModeNBS004AE
Specification data are reference values.
On Board Diagnosis LogicNBS004AF
DTC Confirmation ProcedureNBS004AG
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 5 seconds.
4. If 1st trip DTC is detected, go to EC-857, "
Diagnostic Procedure"
.
WITH GST
Following the procedure “WITH CONSULT-II” above.
PBIB1842E
MONITOR ITEM CONDITION SPECIFICATION
INT/V SOL (B1)
INT/V SOL (B2)

Engine: After warming up

Selector lever: P or N

Air conditioner switch: OFF

No load Idle 0% - 2%
2,000 rpm Approx. 25% - 50%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0075
0075
(Bank 1) Intake valve timing control
solenoid valve circuit An improper voltage is sent to the ECM
through intake valve timing control solenoid
valve.

Harness or connectors
(Intake valve timing control solenoid valve
circuit is open or shorted.)

Intake valve timing control solenoid valve
P0081
0081
(Bank 2)
SEF058Y

PREPARATION EM-9
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421)
c: 10.3 (0.406) dia. f: 5 (0.20)
Unit: mm (in)
EM03470000
(J8037)
Piston ring compressor Installing piston assembly into cylinder bore
ST16610001
(J23907)
Pilot bushing puller Removing pilot converter
KV10111100
(J37228)
Seal cutter Removing oil pan (lower and upper), front
and rear timing chain case, etc.
WS39930000
(—)
Tube presser Pressing the tube of liquid gasket
KV10112100
(BT8653-A)
Angle wrench Tightening bolts for connecting rod bearing
cap, cylinder head, etc. in angle
KV10117100
(J3647-A)
Heated oxygen sensor wrench Loosening or tightening heated oxygen
sensor 2
For 22 mm (0.87 in) width hexagon nut
Tool number
(Kent-Moore No.)
Tool name Description
S-NT603
NT044
NT045
NT046
NT052
NT014
NT379

EM-140
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
Main Bearing Grade Table (All Journals)
Unit: mm (in)
Undersize Bearing Usage Guide

When the specified main bearing oil clearance is not obtained with standard size main bearings, use
underside (US) bearing.

When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and
grind main journal so that the main bearing oil clearance satisfies the standard.
CAUTION:
In grinding crankshaft main journal to use undersize bear-
ings, keep the fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)].
Bearing undersize table
Unit: mm (in)
Grade number Thickness Width Identification color Remarks
0 2.000 - 2.003 (0.0787 - 0.0789)
19.9 - 20.1
(0.783 - 0.791) Black
Grade and color are
the same for upper
and lower bearings.
1 2.003 - 2.006 (0.0789 - 0.0790) Brown
2 2.006 - 2.009 (0.0790 - 0.0791) Green
3 2.009 - 2.012 (0.0791 - 0.0792) Yellow
4 2.012 - 2.015 (0.0792 - 0.0793) Blue
5 2.015 - 2.018 (0.0793 - 0.0794) Pink
6 2.018 - 2.021 (0.0794 - 0.0796) Purple
7 2.021 - 2.024 (0.0796 - 0.0797) White
01 UPR 2.003 - 2.006 (0.0789 - 0.0790) Brown
Grade and color are
different for upper and
lower bearings.
LWR 2.000 - 2.003 (0.0787 - 0.0789) Black
12 UPR 2.006 - 2.009 (0.0790 - 0.0791) Green
LWR 2.003 - 2.006 (0.0789 - 0.0790) Brown
23 UPR 2.009 - 2.012 (0.0791 - 0.0792) Yellow
LWR 2.006 - 2.009 (0.0790 - 0.0791) Green
34 UPR 2.012 - 2.015 (0.0792 - 0.0793) Blue
LWR 2.009 - 2.012 (0.0791 - 0.0792) Yellow
45 UPR 2.015 - 2.018 (0.0793 - 0.0794) Pink
LWR 2.012 - 2.015 (0.0792 - 0.0793) Blue
56 UPR 2.018 - 2.021 (0.0794 - 0.0796) Purple
LWR 2.015 - 2.018 (0.0793 - 0.0794) Pink
67 UPR 2.021 - 2.024 (0.0796 - 0.0797) White
LWR 2.018 - 2.021 (0.0794 - 0.0796) Purple
PBIC1908E
Size Thickness
US 0.25 (0.0098) 2.132 - 2.140 (0.0839 - 0.0843)

EM-148
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45

If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rod
big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer
to EM-137, "
HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage

Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install connecting rod bearings to connecting rod and connecting rod bearing cap, and tighten connecting
rod bolts to the specified torque. Refer to EM-129, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.

Remove connecting rod bearing cap and bearings, and using
the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation

Install main bearings to cylinder block and main bearing caps,
and tighten main bearing cap bolts with main bearing beam to
the specified torque. Refer to EM-129, "
ASSEMBLY" for the
tightening procedure.

Measure the inner diameter of main bearing with a bore gauge.
(Oil clearance) = (Main bearing inner diameter) – (Crankshaft main
journal diameter)

If the calculated value exceeds the limit, select proper main bearing according to main bearing inner diam-
eter and crankshaft main journal diameter to obtain the specified bearing oil clearance. Refer to EM-138,
"HOW TO SELECT MAIN BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install main bearing to cylinder block and main bearing cap, and tighten main bearing bolts with main
bearing beam to the specified torque. Refer to EM-129, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft. Standard : 0.034 - 0.059 mm (0.0013 - 0.0023 in)
(actual clearance)
Limit : 0.070 mm (0.0028 in)
PBIC1149E
Standard : 0.035 - 0.045 mm (0.0014 - 0.0018 in) (actual clearance)
Limit : 0.065 mm (0.0026 in)
PBIC1644E

CYLINDER BLOCK EM-149
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Revision: 2006 July 2007 FX35/FX45

Remove main bearing caps and bearings, and using the scale
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT

When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bear-
ing must protrude. Refer to EM-129, "
ASSEMBLY" for the tight-
ening procedure.

If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT

When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to EM-129,
"ASSEMBLY" for the tightening procedure.

If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER

Measure the outer diameters (“d1 ”, “d2 ”) at two positions as
shown in the figure.

If reduction appears in “A” range, regard it as “d2 ”.

If it exceeds the limit (large difference in dimensions), replace
main bearing cap bolt with new one.
PBIC1149E
Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E
Limit (“d1 ” – “d2 ”) : 0.11 mm (0.0043 in)
PBIC0911E

SERVICE DATA AND SPECIFICATIONS (SDS) EM-157
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Revision: 2006 July 2007 FX35/FX45
Valve Seat
Unit: mm (in)
*
1 : Diameter made by intersection point of conic angles “ α1” and “ α2”
*2 : Diameter made by intersection point of conic angles “ α2” and “ α3”
*3 : Machining data
Valve Spring
Items Standard Oversize (Service) [0.5 (0.02)]
Cylinder head seat recess diameter “D” Intake 38.000 - 38.016 (1.4961 - 1.4967) 38.500 - 38.516 (1.5157 - 1.5164)
Exhaust 32.200 - 32.216 (1.2677 - 1.2683) 32.700 - 32.716 (1.2874 - 1.2880)
Valve seat outer diameter “d” Intake 38.097 - 38.113 (1.4999 - 1.5005) 38.597 - 38.613 (1.5196 - 1.5202)
Exhaust 32.280 - 32.296 (1.2709 - 1.2715) 32.780 - 32.796 (1.2905 - 1.2912)
Valve seat interference fit Intake 0.081 - 0.113 (0.0032 - 0.0044)
Exhaust 0.064 - 0.096 (0.0025 - 0.0038)
Diameter “d1”*
1Intake 35 (1.38)
Exhaust 28.7 (1.130)
Diameter “d2”*
2Intake 36.6 - 36.8 (1.441 - 1.449)
Exhaust 30.6 - 30.8 (1.205 - 1.213)
Angle “ α1” Intake 60
°
Exhaust 60 °
Angle “ α2” Intake 88
°45 ′ - 90 °15 ′
Exhaust 88 °45 ′ - 90 °15 ′
Angle “ α3” Intake 120
°
Exhaust 120 °
Contacting width “W”*
3Intake 1.09 - 1.31 (0.0429 - 0.0516)
Exhaust 1.29 - 1.51 (0.0508 - 0.0594)
Height “h” Intake 5.9 - 6.0 (0.232 - 0.236) 5.05 - 5.15 (0.1988 - 0.2028)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Depth “H” 6.0 (0.236)
PBIC2745E
Free height mm (in) 47.07 (1.8531)
Pressure N (kg, lb) at height mm (in) Installation 166 - 188 (16.9 - 19.2, 37 - 42) at 37.0 (1.457)
Valve open 373 - 421 (38.0 - 42.9, 84 - 95) at 27.2 (1.071)
Out-of-square mm (in) Limit 2.1 (0.083)