2014 NISSAN TEANA octane

EC-530
< SYMPTOM DIAGNOSIS >[QR25DE]
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 A AAB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-41
Va p o r l o c k —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gas-
oline, Low octane) —
Air Air duct
55555 5 EM-29
Air cleaner
Air leakage from air duct
(Mass air flow sensor — elec-
tric throttle control actuator)
555 5
Electric throttle control actua-
tor EM-30
Air leakage from intake mani-
fold/Collector/Gasket
Cranking Battery 111111
11
PG-73

Generator circuit CHG-9
Starter circuit 3STR-6
Signal plate 6EM-88
PNP signal 4TM-206
Engine Cylinder head
55555 55 5 EM-78
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-88
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEM SYMPTOMSEC-989
< SYMPTOM DIAGNOSIS > [VQ35DE]
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EC
NP
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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

PRECAUTIONSGI-29
< PRECAUTION >
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To prevent ECM from storing the diagnostic trou ble codes, do not carelessly disconnect the harness
connectors which are related to the engine cont rol system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and TM sections.
Three Way CatalystINFOID:0000000009462996
If a large amount of unburned fuel flows into the catalyst , the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
• Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
• When checking for ignition spark or measuring engine compression, make tests quickly and only when nec- essary.
• Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the
catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Fuel (Regular Unleaded Ga soline Recommended) QR25DEINFOID:0000000009462997
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91). E-85 fuel (85% fuel ethanol, 15% unl eaded gasoline) may only be used in vehicles specif-
ically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models).
CAUTION:
Do not use leaded gasoli ne. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unlead ed gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fu el other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Fuel (Regular Unleaded Gasoline Recommended) VQ35DEINFOID:0000000009462998
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91). E-85 fuel (85% fuel ethanol, 15% unl eaded gasoline) may only be used in vehicles specif-
ically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models).
CAUTION:
Do not use leaded gasoli ne. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unlead ed gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fu el other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Multiport Fuel Injection System or Engine Control SystemINFOID:0000000009462999
• Before connecting or disconnecti ng any harness connector for the
multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
• Before disconnecting pressurized fuel line from fuel pump to injec-
tors, be sure to release fuel pressure.
• Be careful not to jar components such as ECM and mass air flow sensor.
HosesINFOID:0000000009463000
HOSE REMOVAL AND INSTALLATION
SGI787
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM