2008 NISSAN TEANA spark plugs replace

EC-212
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0300, P0301, P0302, P0303, P0304, P0305, P0306 MISFIRE
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-136, "
Spark Plug".
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-136, "
Spark
Plug".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-22, "
Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-411, "
Inspection".
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-411, "
Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace malfunctioning part.
12.CHECK IGNITION TIMING
Check idle speed and ignition timing.
For procedure, refer to EC-11, "
BASIC INSPECTION : Special Repair Requirement".
For specification, refer to EC-414, "
Idle Speed" and EC-414, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-11, "
BASIC INSPECTION : Special Repair Requirement".
13.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
SEF156I
Spark should be generated.
At idle: Approximately 350 kPa (3.50 bar, 3.57 kg/cm
2, 51 psi)

EC-230
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0420, P0430 THREE WAY CATALYST FUNCTION
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-136, "
Spark Plug".
NO >> Repair or clean spark plug. Then GO TO 9.
9.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-136, "
Spark
Plug".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly.
Refer to EM-44, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON.
Check the fuel does not drip from fuel injector.
Does fuel drip from fuel injector?
YES >> Replace the fuel injector(s) from which fuel is dripping.
NO >> GO TO 11.
11 .CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
Is the inspection result norma?
YES >> Replace three way catalyst assembly.
NO >> Repair or replace harness or connector.
SEF156I
Spark should be generated.

MA-6
< ON-VEHICLE MAINTENANCE >
PERIODIC MAINTENANCE
PERIODIC MAINTENANCE
Periodic MaintenanceINFOID:0000000003858222
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric con-
ditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent mainte-
nance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
ENGINE AND EMISSION CONTROL MAINTENANCE
(Annual Mileage < 30,000 km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace,[ ] = At the specified mileage only.
NOTE:
Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving Condi-
tions”.
(1) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(2) Replace the drive belt if found damaged or if the auto belt tensioner reading reaches the maximum limit.
(3) Use Genuine NISSAN Engine Coolant or equivalent in its quality, in order to avoid possible aluminum corrosion within
the engine cooling system caused by the use of non-genuine engine coolant.
First replace at 90,000 Km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform "I" (Checking
the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(4) Fuel filter is maintenance-free. For service procedures, refer to FL section. MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform at a kilometer (mile) interval or
month interval, whichever comes first.km x
1,000
(Miles x
1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Engine compartment and under vehicle
Intake and exhaust valve clearanceSee
NOTE
(1)EM-17
Drive beltSee
NOTE
(2)I I IIIIIIMA-13
Engine oil (Use recommended oil.)R R RRRRRRMA-18
Engine oil filter (Use genuine NISSAN
engine oil filter or equivalent)R R RRRRRRMA-19
Engine coolant (Use Genuine NISSAN
Engine Coolant or equivalent in its quali-
ty.)See
NOTE
(3)IMA-14
Cooling system I I IIIIIIMA-13
,
MA-17
,
MA-17
Fuel and EVAP vapor lines I I I IMA-18,
MA-22
Air cleaner filterRRMA-18
Positive crankcase ventilation (PSV)
systemIIIIMA-21
Fuel filter (In-tank type)See
NOTE
(4)—
Spark plugs (Iridium-tipped type)See
NOTE
(5)[R] [R] [R] [R] [R] [R] [R] [R]MA-20

PERIODIC MAINTENANCE
MA-9
< ON-VEHICLE MAINTENANCE >
C
D
E
F
G
H
I
J
K
L
MB
MAN
OA
NOTE:
Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving Condi-
tions”.
(1) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(2) Replace the drive belt if found damaged or if the auto belt tensioner reading reaches the maximum limit.
(3) Use Genuine NISSAN Engine Coolant or equivalent in its quality, in order to avoid possible aluminum corrosion within
the engine cooling system caused by the use of non-genuine coolant.
First replace at 90,000 km (54,000 miles), then every 60,000 km (36,000 miles). Perform "I" (Checking the mixture ratio and
correcting the mixture ratio if necessary) at the middle of replacement interval.
(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.
(5) Replace spark plug when the spark plug gap exceeds 1.4 mm (0.055 in) even if within specified periodic replacement
mileage.
CHASSIS AND BODY MAINTENANCE
(Annual Mileage > 30,000 km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, L = Lubricate.
Fuel and EVAP vapor lines I IMA-18,
MA-22
Air cleaner filterRRMA-18
Fuel filter (In-tank type)See
NOTE (4)—
Positive crankcase ventilation (PCV) system I I I IMA-21
Spark-plugs (Iridium-tipped type)See
NOTE (5)R R RRRRRRMA-20
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform at number of kilometers (miles) basis
only.km x
1,000
(Miles x
1,000)15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform at number of kilometers (miles)
basis only.km x 1,000
(Miles x
1,000)15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Underhood and under vehicle
Headlamp aiming I I I IMA-23
,
MA-27
Brake system and fluid (For level &
leaks)IIIIMA-38,
MA-37

Brake fluidRRMA-38
Brake booster vacuum hoses, connec-
tions & check valveIIBR-12
Power steering fluid & lines (For level &
leaks)IIIIMA-40
CVT fluid (For level & leaks)See
NOTE (1)IIIIMA-32,
MA-34
Steering gear & linkage, axle & suspen-
sion parts, & front drive shafts IIMA-39,
MA-40
,
MA-41
Exhaust systemIIMA-32
Brake pads, rotors & other brake com-
ponentsIIIIMA-38,
BR-13
,
BR-15
Foot brake & parking brake (For free
play, stroke & operation)IIIIBR-6,
PB-2