2008 NISSAN TEANA octane

EC-402
< SYMPTOM DIAGNOSIS >[VQ25DE, VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
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
5FL-9
Fuel piping 5 5 5 5 5 5FL-4
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 5EM-26
Air cleanerEM-26
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
5555EM-26
Electric throttle control actuatorEM-29
Air leakage from intake manifold/
Collector/GasketEM-29,
EM-32
Cranking Battery
111111
11PG-109
Generator circuitCHG-20
Starter circuit 3STR-5,
STR-6
Signal plate 6EM-104
PNP signal 4TM-48,
TM-214
Engine Cylinder head
55555 55 5EM-97
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-110
Piston
Piston ring
Connecting rod
Bearing
Crankshaft

FL-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
General PrecautionsINFOID:0000000003793245
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
 Be sure to work in a well ventilated area and furnish workshop with a CO
2 fire extinguisher.
 Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
 Use gasoline required by the regulations for octane number. Refer to GI-29, "
Fuel".
 Before removing fuel line parts, perform out the following procedures:
- Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to EC-411, "
Inspection".
- Disconnect the battery cable from the negative terminal.
 Always replace O-ring and clamps with new ones.
 Never kink or twist tubes when they are being installed.
 Never tighten hose clamps excessively to avoid damaging hoses.
 After installing tubes, check there is no fuel leakage at connections in the following steps.
- Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check
for fuel leakage at connections.
- Start engine and rev it up and check for fuel leakage at connections.
 Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
“MI” may come on.
 For servicing “Evaporative Emission System” parts, refer to EC-76, "
System Diagram".

PRECAUTIONS
GI-29
< PRECAUTION >
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FuelINFOID:0000000003852787
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
VQ35DE
Use Unleaded premium gasoline of at least 95 octane (RON).
If unleaded premium gasoline is not used, unleaded regular gasoline with an octane rating of at least 91
(RON) may be used at slightly redused performance. However, for maximum vehicle performance and the
best driveability, the use of unleaded premium gasoline is recommended.
VQ25DE
Use unleaded regular gasoline of at least 91 octane (RON).
Use unleaded premium gasoline if instructed on the fuel filler lid.