2014 NISSAN TEANA engine

VARIABLE INDUCTION AIR SYSTEMEC-985
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
Without CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 1.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Start engine.
4. Rev engine quickly up to approximately 5,000 rpm.
5. Check vacuum existence under the following conditions.
Is the inspection result normal?
YES >> Repair or replace power valve actuator 1. Refer to EC-548, "ENGINE CONTROL SYSTEM :
Component Parts Location".
NO >> GO TO 3.
3.CHECK VACUUM TANK
1. Stop engine and disconnect vacuum hose connected to intake manifold collector.
2. Start engine and let it idle.
3. Check vacuum existence from intake manifold collector.
Does vacuum existence from t he intake manifold collector?
YES >> GO TO 4.
NO >> Replace intake manifold collector. Refer to EM-146, "Removal and Installation"
.
4.CHECK VACUUM HOSE
1. Stop engine.
2. Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to EC-586, "VARIABLE INDUCTION AIR
SYSTEM : System Description".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair hoses or tubes.
5.CHECK VIAS CONTROL SOLENOID VALVE 1
Check VIAS control solenoid valve 1. Refer to EC-921, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace VIAS control solenoid valve 1. Refer to EC-548, "ENGINE CONTROL SYSTEM : Com-
ponent Parts Location".
6.CHECK VACUUM EXISTENCE-II
With CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2. Start engine and let it idle.
3. Perform “VIAS S/V-2” in “A CTIVE TEST” mode with CONSULT.
4. Turn VIAS control solenoid valve 2 ON and OFF, and check vacuum existence under the following condi- tions.
VIAS S/V-1 Vacuum
ON Existed
OFF Not existed
Condition VacuumIdle Existed
Rev engine quickly up to approximately 5,000 rpm Not existed
SEF109L
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-986
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
Without CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Start engine.
4. Rev engine quickly up to approximately 5,000 rpm.
5. Check vacuum existence under the following conditions.
Is the inspection result normal?
YES >> Repair or replace power valve actuator 2. Refer to EC-548, "ENGINE CONTROL SYSTEM :
Component Parts Location".
NO >> GO TO 7.
7.CHECK VACUUM HOSE
1. Stop engine.
2. Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to EC-586, "VARIABLE INDUCTION AIR
SYSTEM : System Description".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair hoses or tubes.
8.CHECK VIAS CONTROL SOLENOID VALVE 2
Check VIAS control solenoid valve 2. Refer to EC-923, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace VIAS control solenoid valve 2. Refer to EC-548, "ENGINE CONTROL SYSTEM : Com-
ponent Parts Location".
VIAS S/V 2 Vacuum
ON Existed
OFF Not existed
Condition OperationIdle Existed
Rev engine quickly up to approximately 5,000 rpm Not existed
SEF109L
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEM SYMPTOMSEC-987
< SYMPTOM DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
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

ENGINE CONTROL SYSTEM SYMPTOMSEC-989
< SYMPTOM DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
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 tank 5
5 FL-5
Fuel piping 5 5 5 5 5 5
Va p o r l o c k —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gasoline,
Low octane) —
Air Air duct
55555 5 EM-144
Air cleaner
EM-137
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator) 5555 EM-144
Electric throttle control actuator
EM-146
Air leakage from intake manifold/
Collector/Gasket EM-146,
EM-149
Cranking Battery
111111
11
PG-4
Generator circuit
CHG-17,
CHG-20
Starter circuit 3 STR-12,
STR-16
Signal plate 6 EM-224
PNP signal 4TM-299
Engine Cylinder head
55555 55 5 EM-207
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-224
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-990
< SYMPTOM DIAGNOSIS >[VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nism Timing chain
55555 55 5 EM-182
Camshaft
EM-194
Intake valve timing controlEM-172,
EM-173
Intake valve 3EM-210
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-152
,
EM-153
,
EX-11
Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-156
,
LU-27
, LU-
29, LU-32
Oil level (Low)/Filthy oil LU-25
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-40,
CO-51
Thermostat 5 CO-49
Water pumpCO-44
Water galleryCO-31
Cooling fan
5CO-42
Coolant level (Low)/Contaminat-
ed coolant CO-35
NVIS (NISSAN Vehicle Immobilizer System —
NATS) 11
SEC-11
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

NORMAL OPERATING CONDITIONEC-991
< SYMPTOM DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000009462866
FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)
If the engine speed is above 2,000 rpm under no load (for ex
ample, the selector lever position is P or N and
engine speed is over 2,000 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off var-
ies based on engine speed.
Fuel cut will be operated until the engine speed reaches 1,100 rpm, then fuel cut will be cancelled.
NOTE:
This function is different from deceleration contro l listed under Multiport Fuel Injection (MFI) System, EC-568,
"MULTIPORT FUEL INJECTION SYSTEM : System Description".
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-994
< PERIODIC MAINTENANCE >[VQ35DE]
EVAP LEAK CHECK
EVAP LEAK CHECK
Work ProcedureINFOID:0000000009462869
CAUTION:
• Never use compressed air or a high pressure pump.
• Never exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in EVAP system.
NOTE:
• Do not start engine.
• Improper installation of EVAP service port adapter (com mercial service tool) to the EVAP service port may
cause a leakage.
WITH CONSULT
1. To locate the EVAP leakage, install EVAP service port adapter (commercial service tool) and pressure pump to EVAP service
port.
2. Turn ignition switch ON.
3. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT MODE” with CONSULT.
4. Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
5. Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar graph.
6. Remove EVAP service port adapter (commercial service tool) and hose with pressure pump.
7. Locate the leakage using a leakage detector (commercial ser- vice tool). Refer to EC-580, "EVAPORATIVE EMISSION SYS-
TEM : System Description".
WITHOUT CONSULT
1. To locate the EVAP leakage, install EVAP service port adapter
(commercial service tool) and pressure pump to EVAP service
port.
2. Apply battery voltage between the terminals of EVAP canister vent control valve to ma ke a closed EVAP system.
3. To locate the leakage, deliver positive pressure to the EVAP sys- tem until pressure gauge points r each 1.38 to 2.76 kPa (0.014 to
0.028 kg/cm
2, 0.2 to 0.4 psi).
4. Remove EVAP service port adapter (commercial service tool) and hose with pressure pump.
SEF462UA
SEF200U
SEF462UA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM