2014 NISSAN TEANA fuel pressure

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-977
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "Removal and Installation"
.
3.CHECK REFUELING EVAP VAPOR CUT VALVE
Without CONSULT
1. Turn ignition switch OFF.
2. Remove fuel tank. Refer to FL-10, "Removal and Installation"
.
3. Drain fuel from the tank as per the following:
- Remove fuel gauge retainer.
- Drain fuel from the tank using a handy pump into a fuel container.
4. Check refueling EVAP vapor cut valve for being stuck to close as per the following. Blow air into the refueling EVAP vapor cut valv e (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
5. Check refueling EVAP vapor cut valve for being stuck to open as per the following.
- Connect vacuum pump to hose end.
- Remove fuel gauge retainer with fuel gauge unit. Always replace O-ring with new one.
- Turn fuel tank upside down.
- Apply vacuum pressure to hose end [ −13.3 kPa ( −0.136 kg/cm
2, −1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
1. Filler tube 2. Recirculation line 3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
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Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-978
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "Removal and Installation"
.
1. Filler tube 2. Recirculation line 3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
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Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEM SYMPTOMSEC-987
< SYMPTOM DIAGNOSIS > [VQ35DE]
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SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM SYMPTOMS
Symptom TableINFOID:0000000009462865
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2 EC-965
Fuel pressure regulator system 334444444 4EC-687
Fuel injector circuit 11232 22 2EC-962
Evaporative emission system 334444444 4EC-580
Air Positive crankcase ventilation sys-
tem 334444444 41
EC-563
Incorrect idle speed adjustment 1 1 1 1 1 EC-675
Electric throttle control actuator 112332222 2 2EC-933,
EC-938
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-675
Ignition circuit 11222 22 2EC-967
Power supply and ground circuit 22333 33 23 EC-709
Mass air flow sensor circuit
1
12 2
222 2 EC-727,
EC-732
Engine coolant temperature sensor circuit
333
EC-742,
EC-746
Air fuel ratio (A/F) sensor 1 circuit EC-753
,
EC-757
,
EC-760
,
EC-781
,
EC-927
Throttle position sensor circuit
22EC-744
,
EC-807
,
EC-895
,
EC-896
,
EC-945
Accelerator pedal position sensor circuit 3 2 1 EC-885
,
EC-940
,
EC-942
,
EC-947
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-988
< SYMPTOM DIAGNOSIS >[VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Knock sensor circuit 2 3 EC-815
Engine oil temperature sensor 4 2 3EC-801,
EC-805
Crankshaft position sensor (POS) circuit 2 2 EC-817
Camshaft position sensor (PHASE) circuit 3 2EC-820
Vehicle speed signal circuit 2 3 3 3EC-867
ECM 22333333333EC-881,
EC-883
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-725
PNP signal circuit 3 3 3 3 3 EC-887
VIAS control solenoid valve 1 circuit 1EC-920
VIAS control solenoid valve 2 circuit 1EC-922
Refrigerant pressure sensor circuit 2 3 3 4EC-979
Electrical load signal circuit 3EC-957
Air conditioner circuit 223333333 3 2HA-15
ABS actuator and electric unit (control unit) 4BRC-55
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EM-1
ENGINE
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SECTION EM
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EM
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CONTENTS
ENGINE MECHANICAL
QR25DE
PRECAUTION ................ ...............................
4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution for Draining Coolant ................................4
Precaution for Disconnecting Fuel Piping .................4
Precaution for Removal and Disassembly ................4
Precaution for Inspection, Repair and Replace-
ment .................................................................... ......
4
Special Cautions to Ensure the Safe Disposal of
Sodium-filled Exhaust Valves .............................. ......
5
Precaution for Assembly and Installation ..................6
Parts Requiring Angular Tightening ..........................6
Precaution for Liquid Gasket ............................... ......6
PREPARATION ............................................8
PREPARATION .............................................. .....8
Special Service Tool ........................................... ......8
Commercial Service Tool ........................................10
SYMPTOM DIAGNOSIS ..............................13
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ ....
13
NVH Troubleshooting - Engine Noise ................. ....13
Use the Chart Below to Help You Find the Cause
of the Symptom ................................................... ....
14
PERIODIC MAINTENANCE .........................16
SPARK PLUG .. .............................................. ....16
Exploded View .................................................... ....16
Removal and Installation .........................................16
DRIVE BELTS ................................................ ....19
Exploded View .................................................... ....19
Checking Drive Belts ...............................................19
Tension Adjustment ............................................. ....19
Removal and Installation .........................................19
Removal and Installation of Drive Belt Auto-ten-
sioner ................................................................... ....
20
AIR CLEANER FILTER .....................................22
Exploded View .........................................................22
Removal and Installation .........................................22
CAMSHAFT VALVE CLEARANCE ..................23
Camshaft valve clearance .......................................23
COMPRESSION PRESSURE ...........................26
Compression pressure ............................................26
REMOVAL AND INSTALLATION ...............28
ENGINE ROOM COVER ...................................28
Exploded View ..................................................... ....28
Removal and Installation .........................................28
AIR CLEANER AND AIR DUCT .......................29
Exploded View .........................................................29
Removal and Installation .........................................29
INTAKE MANIFOLD .........................................30
Exploded View .........................................................30
Removal and Installation .........................................30
EXHAUST MANIFOLD AND THREE WAY
CATALYST ........................................................
33
Exploded View ..................................................... ....33
Removal and Installation .........................................33
OIL PAN AND OIL STRAINER .........................36
Exploded View .........................................................36
Removal and Installation .........................................36
IGNITION COIL .................................................40
Exploded View .........................................................40
Removal and Installation .........................................40
FUEL INJECTOR AND FUEL TUBE ................41
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EM-2
Exploded View ........................................................41
Removal and Installation ........................................41
ROCKER COVER ..............................................45
Exploded View ..................................................... ...45
Removal and Installation ........................................45
CAMSHAFT .......................................................47
Exploded View ..................................................... ...47
Removal and Installation ........................................47
Inspection After Installation ................................. ...56
VALVE TIMING CONTROL ............................ ...58
Exploded View ..................................................... ...58
Intake Valve Timing Intermediate Lock Control
Solenoid Valve, Intake Va lve Timing Control Sole-
noid Valve, and Exhaust Valve Timing Control So-
lenoid Valve ......................................................... ...
58
Valve Timing Control Cover ....................................59
TIMING CHAIN ............................................... ...61
Exploded View ..................................................... ...61
Removal and Installation ........................................62
OIL SEAL ...........................................................70
Removal and Installation of Valve Oil Seal .......... ...70
Removal and Installation of Front Oil Seal .............71
Removal and Installation of Rear Oil Seal ..............72
CYLINDER HEAD ..............................................74
Exploded View ..................................................... ...74
Removal and Installation ........................................74
Disassembly and Assembly ....................................76
Inspection After Disassembly .................................78
UNIT REMOVAL AND INSTALLATION .. ...83
ENGINE ASSEMBLY ...................................... ...83
Exploded View ..................................................... ...83
Removal and Installation ........................................84
UNIT DISASSEMBLY AND ASSEMBLY ....87
CYLINDER BLOCK ........................................ ...87
Exploded View ..................................................... ...87
Disassembly and Assembly ....................................88
Inspection After Disassembly .................................96
HOW TO SELECT PISTON AND BEARING .. .105
How to Select Piston and Bearing ....................... ..105
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. ............................................
111
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
111
Standard and Limit .............................................. ..111
VQ35DE
PRECAUTION .............. ..............................
123
PRECAUTIONS .............................................. .123
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
123
Precaution for Draining Coolant ............................123
Precaution for Disconnecting Fuel Piping .............123
Precaution for Removal and Disassembly ............123
Precaution for Inspection, Repair and Replace-
ment ..................................................................... .
123
Precaution for Assembly and Installation ..............123
Parts Requiring Angular Tightening ..................... .124
Precaution for Liquid Gasket .................................124
PREPARATION .........................................126
PREPARATION .............................................. ..126
Special Service Tool ............................................ .126
Commercial Service Tool ......................................127
SYSTEM DESCRIPTION ..........................130
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... ..
130
NVH Troubleshooting - Engine Noise .................. .130
Use the Chart Below to Help You Find the Cause
of the Symptom .................................................... .
131
PERIODIC MAINTENANCE ......................132
SPARK PLUG ... .............................................. ..132
Exploded View ..................................................... .132
Removal and Installation .......................................132
DRIVE BELTS ................................................ ..134
Exploded View ..................................................... .134
Checking Drive Belts .............................................134
Tension Adjustment ..............................................134
Removal and Installation .......................................134
Removal and Installation of Drive Belt Auto-ten-
sioner ................................................................... .
135
AIR CLEANER FILTER ....................................137
Exploded View ..................................................... .137
Removal and Installation .......................................137
CAMSHAFT VALVE CLEARANCE ............... ..138
Valve Clearance ................................................... .138
COMPRESSION PRESSURE ..........................142
On-Vehicle Service .............................................. .142
REMOVAL AND INSTALLATION .............143
ENGINE ROOM COVER ................................ ..143
Exploded View ..................................................... .143
Removal and Installation .......................................143
AIR CLEANER AND AIR DUCT ..................... ..144
Exploded View ..................................................... .144
Removal and Installation .......................................144
INTAKE MANIFOLD COLLECTOR ............... ..146
Exploded View ..................................................... .146
Revision: November 20132014 Altima NAM

EM-4
< PRECAUTION >[QR25DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951675
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for Draining CoolantINFOID:0000000009460453
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000009460454
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before any removal or disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000009460455
• When instructed to use special service tools, use the s pecified tools. Always be careful to work safely, avoid
forceful operations.
• Use maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or equivalent , if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organi zed way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, follow the specifications.
Precaution for Inspection, Repair and ReplacementINFOID:0000000009460456
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Revision: November 20132014 Altima NAM

EM-6
< PRECAUTION >[QR25DE]
PRECAUTIONS
4. Cover the serrated end of the valve with a large shop towel (A).
Strike the valve face end with a hammer, separating it into two
pieces.
5. Fill a bucket, such as a 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can, with at least 10 (2-5/8 US gal, 2-1/4 lmp gal) of water.
Carefully place the already cut (serrated) valves into the water
one-at-a-time using a set of large tweezers and quickly move
away at least 2.7 m (9 ft).
6. The valves should be placed in a standing position as shown in the illustration to allow complete reaction. After the bubbling
action has subsided, additional valves can be placed into the
bucket allowing each subsequent chemical reaction to subside.
However, no more than 8 valves should be placed in the same
10 (2-5/8 US gal, 2-1/4 lmp gal) amount of water. The com-
plete chemical reaction may take as long as 4 to 5 hours.
Remove the valves using a set of large tweezers after the chem-
ical reaction has stopped. Afterwards, valves can be disposed
as ordinary scrap.
Precaution for Assembly and InstallationINFOID:0000000009460458
• Use torque wrench to tighten bolts or nuts.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
follow the specifications.
• Always replace the old with a new gas ket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Bleed the air trapped within the system after draining the coolant.
• Before starting engine, apply fuel pressure to fuel li nes with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage or rattles.
Parts Requiring Angular TighteningINFOID:0000000009460459
• Use an angle wrench for the final tightening of the following engine parts.
- Cylinder head bolts
- Lower cylinder block bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000009460460
REMOVAL OF LIQUID GASKET
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A : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can]
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