2006 INFINITI M35 oil pressure

EC-1116
[VK45DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42,
44, 63 and ground with CONSULT-II or tester.
Refer to Wiring Diagram for fuel injectors, EC-1421, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-1422, "
Diagnostic Procedure" .
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. 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.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical 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.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.Battery voltage should exist.
PBIB1527E
Spark should be generated.
PBIB2697E
PBIB2325E

DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-1147
[VK45DE]
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Revision: 2006 January2006 M35/M45
DTC P0447 EVAP CANISTER VENT CONTROL VALVEPFP:14935
Component DescriptionNBS005HK
The EVAP canister vent control valve (1) is located on the EVAP
canister (2) and is used to seal the canister vent.
Illustration shows the view from under the vehicle.
: Vehicle front
EVAP control system pressure sensor (3)
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
CONSULT-II Reference Value in Data Monitor ModeNBS005HL
Specification data are reference values.
On Board Diagnosis LogicNBS005HM
PBIB2702E
PBIB1263E
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V
Ignition switch: ON OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0447
0447EVAP canister vent con-
trol valve circuit openAn improper voltage signal is sent to ECM
through EVAP canister vent control valve.
Harness or connectors
(The valve circuit is open or shorted.)
EVAP canister vent control valve

EC-1154
[VK45DE]
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
Revision: 2006 January2006 M35/M45
DTC P0448 EVAP CANISTER VENT CONTROL VALVEPFP:16935
Component DescriptionNBS005HR
The EVAP canister vent control valve (1) is located on the EVAP
canister (2) and is used to seal the canister vent.
Illustration shows the view from under the vehicle.
: Vehicle front
EVAP control system pressure sensor (3)
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
CONSULT-II Reference Value in Data Monitor ModeNBS005HS
Specification data are reference values.
On Board Diagnosis LogicNBS005HT
PBIB2702E
PBIB1263E
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V
Ignition switch: ON OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0448
0448EVAP canister vent con-
trol valve closeEVAP canister vent control valve remains
closed under specified driving conditions.
EVAP canister vent control valve
EVAP control system pressure sensor
and the circuit
Blocked rubber tube to EVAP canister
vent control valve
EVAP canister is saturated with water

EC-1240
[VK45DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 January2006 M35/M45
Cooling Fan Motor
Cooling fan motor receives cooling fan motor operating voltage from
cooling fan control module (1). The revolution speed of cooling fan
motor is controlled by duty cycle of the voltage.
: Vehicle front
Cooling fan motor-1 harness connector (2)
Cooling fan motor-2 harness connector (3)
CONSULT-II Reference Value in Data Monitor ModeNBS005KR
Specification data are reference values.
On Board Diagnosis LogicNBS005KS
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-40, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-28, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-13, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckNBS005KT
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WAR NING :
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
PBIB2691E
MONITOR ITEM CONDITION SPECIFICATION
FA N DU T Y
Engine: Running 0 - 100%
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)
Cooling fan does not operate properly (Over-
heat).
Cooling fan system does not operate prop-
erly (Overheat).
Engine coolant was not added to the system
using the proper filling method.
Engine coolant is not within the specified
range.
Harness or connectors
(The cooling fan circuit is open or
shorted.)
IPDM E/R
Cooling fan control module
Cooling fan motor
Radiator hose
Radiator
Radiator cap
Water pump
Thermostat
For more information, refer to EC-1249,
"Main 13 Causes of Overheating" .

EC-1418
[VK45DE]
IGNITION SIGNAL
Revision: 2006 January2006 M35/M45
3. Check resistance between ignition coil terminals as follows.
4. If NG, replace ignition coil with power transistor.
If OK, go to next step.
5. Turn ignition switch OFF.
6. Reconnect all harness connectors disconnected.
7. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release 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 spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical 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.
Terminal No. (Polarity) Resistance [at 25C (77F)]
1 and 2 Except 0 or
1 and 3
Except 0
2 and 3
Spark should be generated.
PBIB0847E
PBIB2697E
PBIB2325E

EM-2Revision: 2006 January2006 M35/M45 IGNITION COIL ......................................................... 42
Components ........................................................... 42
Removal and Installation ........................................ 42
REMOVAL ........................................................
... 42
INSTALLATION .................................................... 42
SPARK PLUG (PLATINUM-TIPPED TYPE) ............. 43
Components ........................................................... 43
Removal and Installation ........................................ 43
REMOVAL ........................................................
... 43
INSPECTION AFTER REMOVAL ........................ 43
INSTALLATION .................................................... 44
FUEL INJECTOR AND FUEL TUBE ........................ 45
Components ........................................................... 45
Removal and Installation ........................................ 45
REMOVAL ........................................................
... 45
INSTALLATION .................................................... 47
INSPECTION AFTER INSTALLATION ................ 50
ROCKER COVER ..................................................... 51
Components ........................................................... 51
Removal and Installation ........................................ 51
REMOVAL ........................................................
... 51
INSTALLATION .................................................... 52
FRONT TIMING CHAIN CASE ................................. 54
Removal and Installation ........................................ 54
REMOVAL ........................................................
... 54
INSTALLATION .................................................... 58
INSPECTION AFTER INSTALLATION ................ 63
TIMING CHAIN .......................................................... 64
Components ........................................................... 64
Removal and Installation ........................................ 65
REMOVAL ........................................................
... 65
INSPECTION AFTER REMOVAL ........................ 72
INSTALLATION .................................................... 72
INSPECTION AFTER INSTALLATION ................ 82
CAMSHAFT ............................................................... 84
Components ........................................................... 84
Removal and Installation ........................................ 85
REMOVAL ........................................................
... 85
INSPECTION AFTER REMOVAL ........................ 86
INSTALLATION .................................................... 89
INSPECTION AFTER INSTALLATION ................ 92
Valve Clearance ...................................................... 93
INSPECTION ....................................................... 93
ADJUSTMENT .................................................... 96
OIL SEAL ......................................................
............ 98
Removal and Installation of Valve Oil Seal ............. 98
REMOVAL ........................................................
... 98
INSTALLATION .................................................... 98
Removal and Installation of Front Oil Seal ............. 99
REMOVAL ........................................................
... 99
INSTALLATION .................................................... 99
Removal and Installation of Rear Oil Seal .............. 99
REMOVAL ........................................................
... 99
INSTALLATION ..................................................100
CYLINDER HEAD .................................................. .101
On-Vehicle Service ...............................................101
CHECKING COMPRESSION PRESSURE .......101
Components .........................................................102Removal and Installation .......................................102
REMOVAL ..........................................................102
INSPECTION AFTER REMOVAL ......................103
INSTALLATION ..................................................104
INSPECTION AFTER INSTALLATION ..............105
Disassembly and Assembly ..................................106
COMPONENTS .................................................106
DISASSEMBLY ..................................................106
ASSEMBLY ........................................................107
Inspection after Disassembly ................................108
VALVE DIMENSIONS ........................................108
VALVE GUIDE CLEARANCE ............................108
VALVE GUIDE REPLACEMENT .......................109
VALVE SEAT CONTACT ....................................110
VALVE SEAT REPLACEMENT ..........................110
VALVE SPRING SQUARENESS ....................... 111
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD ..............................112
ENGINE ASSEMBLY ...............................................113
Components (2WD Models) ..................................113
Removal and Installation (2WD Models) ...............113
REMOVAL ..........................................................114
INSTALLATION ..................................................116
INSPECTION AFTER INSTALLATION ..............117
Components (AWD Models) .................................118
Removal and Installation (AWD Models) ..............118
REMOVAL ..........................................................119
INSTALLATION ..................................................121
INSPECTION AFTER INSTALLATION ..............122
CYLINDER BLOCK .................................................123
Components ..........................................................123
Disassembly and Assembly ..................................124
DISASSEMBLY ..................................................124
ASSEMBLY ......................................................
..128
How to Select Piston and Bearing ........................135
DESCRIPTION ..................................................135
HOW TO SELECT PISTON ...............................135
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................136
HOW TO SELECT MAIN BEARING ..................137
Inspection after Disassembly ................................140
CRANKSHAFT END PLAY ................................140
CONNECTING ROD SIDE CLEARANCE .........140
PISTON TO PISTON PIN OIL CLEARANCE .....140
PISTON RING SIDE CLEARANCE ...................141
PISTON RING END GAP ..................................141
CONNECTING ROD BEND AND TORSION .....142
CONNECTING ROD BIG END DIAMETER ......142
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................142
CYLINDER BLOCK DISTORTION ....................143
MAIN BEARING HOUSING INNER DIAMETER .144
PISTON TO CYLINDER BORE CLEARANCE ..144
CRANKSHAFT MAIN JOURNAL DIAMETER ...145
CRANKSHAFT PIN JOURNAL DIAMETER ......146
CRANKSHAFT OUT-OF-ROUND AND TAPER .146
CRANKSHAFT RUNOUT ..................................146
CONNECTING ROD BEARING OIL CLEAR-

EM-4Revision: 2006 January2006 M35/M45 ROCKER COVER ...................................................199
Components .........................................................199
Removal and Installation ......................................199
REMOVAL ........................................................
.199
INSTALLATION ..................................................201
TIMING CHAIN ........................................................203
Components .........................................................203
Removal and Installation ......................................204
REMOVAL ........................................................
.204
INSPECTION AFTER REMOVAL ......................208
INSTALLATION ..................................................208
INSPECTION AFTER INSTALLATION ..............214
CAMSHAFT .............................................................215
Components .........................................................215
Removal and Installation ......................................215
REMOVAL ........................................................
.215
INSPECTION AFTER REMOVAL ......................216
INSTALLATION ..................................................219
INSPECTION AFTER INSTALLATION ..............221
INSPECTION AFTER INSTALLATION ..............222
Valve Clearance ....................................................222
INSPECTION .....................................................222
ADJUSTMENT ..................................................225
OIL SEAL ................................................................229
Removal and Installation of Valve Oil Seal ...........229
REMOVAL ........................................................
.229
INSTALLATION ..................................................229
Removal and Installation of Front Oil Seal ...........230
REMOVAL ........................................................
.230
INSTALLATION ..................................................230
Removal and Installation of Rear Oil Seal ............231
REMOVAL ........................................................
.231
INSTALLATION ..................................................231
CYLINDER HEAD .................................................. .233
On-Vehicle Service ...............................................233
CHECKING COMPRESSION PRESSURE .......233
Components .........................................................234
Removal and Installation ......................................234
REMOVAL ........................................................
.234
INSPECTION AFTER REMOVAL ......................235
INSTALLATION ..................................................235
Disassembly and Assembly ..................................237
COMPONENTS .................................................237
DISASSEMBLY .................................................237
ASSEMBLY ......................................................
.238
Inspection after Disassembly ................................239
VALVE DIMENSIONS ........................................239
VALVE GUIDE CLEARANCE ............................240
VALVE GUIDE REPLACEMENT .......................240
VALVE SEAT CONTACT ...................................242
VALVE SEAT REPLACEMENT .........................242
VALVE SPRING SQUARENESS .......................243
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD .............................243ENGINE ASSEMBLY ...............................................244
Components ..........................................................244
Removal and Installation .......................................244
REMOVAL ..........................................................245
INSTALLATION ..................................................247
INSPECTION AFTER INSTALLATION ..............247
CYLINDER BLOCK .................................................249
Components ..........................................................249
Disassembly and Assembly ..................................250
DISASSEMBLY ..................................................250
ASSEMBLY ........................................................254
How to Select Piston and Bearing ........................259
DESCRIPTION ..................................................259
HOW TO SELECT PISTON ...............................260
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................261
HOW TO SELECT MAIN BEARING ..................262
Inspection after Disassembly ................................266
CRANKSHAFT END PLAY ................................266
CONNECTING ROD SIDE CLEARANCE .........266
PISTON TO PISTON PIN OIL CLEARANCE .....266
PISTON RING SIDE CLEARANCE ...................267
PISTON RING END GAP ..................................267
CONNECTING ROD BEND AND TORSION .....268
CONNECTING ROD BIG END DIAMETER ......268
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................268
CYLINDER BLOCK DISTORTION ....................269
MAIN BEARING HOUSING INNER DIAMETER .270
PISTON TO CYLINDER BORE CLEARANCE ..270
CRANKSHAFT MAIN JOURNAL DIAMETER ...271
CRANKSHAFT PIN JOURNAL DIAMETER ......272
CRANKSHAFT OUT-OF-ROUND AND TAPER .272
CRANKSHAFT RUNOUT ..................................272
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................273
MAIN BEARING OIL CLEARANCE ...................274
CRUSH HEIGHT OF MAIN BEARING ..............275
CRUSH HEIGHT OF CONNECTING ROD
BEARING ...........................................................275
DRIVE PLATE ....................................................275
SERVICE DATA AND SPECIFICATIONS (SDS) ....276
Standard and Limit ................................................276
GENERAL SPECIFICATIONS ...........................276
DRIVE BELTS ....................................................276
INTAKE MANIFOLD AND EXHAUST MANI-
FOLD .................................................................276
SPARK PLUG ....................................................277
CAMSHAFT AND CAMSHAFT BEARING .........277
CYLINDER HEAD ..............................................279
CYLINDER BLOCK ............................................282
PISTON, PISTON RING AND PISTON PIN ......283
CONNECTING ROD ..........................................284
CRANKSHAFT ...................................................285
MAIN BEARING .................................................287
CONNECTING ROD BEARING .........................288

PRECAUTIONS
EM-5
[VQ35DE]
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Revision: 2006 January2006 M35/M45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Procedures without Cowl Top CoverNBS004MF
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS005RR
NOTE:
This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
LOCK position.
Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the
ACC position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the
LOCK position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Drain Engine Coolant and Engine OilNBS004MH
Drain engine coolant and engine oil when the engine is cooled.
Precautions for Disconnecting Fuel PipingNBS004MI
Before starting work, make sure no fire or spark producing items are in the work area.
Release fuel pressure before disconnecting and disassembly.
After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS004MJ
When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
Exercise maximum care to avoid damage to mating or sliding surfaces.
PIIB3706J