air filter NISSAN TEANA 2008 Service Manual

TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-127
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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NOTE:
Check “A/F ALPHA-B1”, “A/F ALPHA-B2” for approximately 1 minute because they may fluctuate. It is NG
if the indication is out of the SP value even a little.
Is the measurement value within the SP value?
YES >> GO TO 17.
NO-1 >> Less than the SP value: GO TO 2.
NO-2 >> More than the SP value: GO TO 3.
2.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and check that the indication is within the SP
value.
Is the measurement value within the SP value?
YES >> GO TO 4.
NO >> More than the SP value: GO TO 19.
3.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and check that the indication is within the SP
value.
Is the measurement value within the SP value?
YES >> GO TO 6.
NO-1 >> More than the SP value: GO TO 6.
NO-2 >> Less than the SP value: GO TO 25.
4.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Stop the engine.
2. Disconnect PCV hose, and then plug it.
3. Start engine.
4. Select “A/F ALPHA-B1”, “A/F ALPHA-B2” in “SPEC” of “DATA MONITOR” mode, and check that the each
indication is within the SP value.
Is the measurement value within the SP value?
YES >> GO TO 5.
NO >> GO TO 6.
5.CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil.
NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
ditions.
>> INSPECTION END
6.CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-411, "
Inspection".)
Is the inspection result normal?
YES >> GO TO 9.
NO-1 >> Fuel pressure is too high: Replace “fuel filter and fuel pump assembly” and then. GO TO 8.
NO-2 >> Fuel pressure is too low: GO TO 7.
7.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly” and then GO TO 8.
NO >> Repair or replace malfunctioning part and then GO TO 8.
8.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”

EC-200
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
5. Check the continuity between A/F sensor 1 harness connector or ECM harness connector and ground.
6. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK FUEL PRESSURE
1. Release fuel pressure to zero. Refer to EC-411, "
Inspection".
2. Install fuel pressure gauge and check fuel pressure. Refer to EC-411, "
Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5. 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.
6.CHECK MASS AIR FLOW SENSOR
With CONSULT-III
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT-III.
For specification, refer to EC-414, "
Mass Air Flow Sensor".
With GST
1. Install all removed parts.
2. Check mass air flow sensor signal in Service $01 with GST.
For specification, refer to EC-414, "
Mass Air Flow Sensor".
Is the measurement value within the specification?
YES >> GO TO 7.
NO >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
ground. Refer to EC-150, "
Diagnosis Procedure".
7.CHECK FUNCTION OF FUEL INJECTOR
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
DTCA/F sensor 1 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0171 1 F271
F845
Existed 249
P0174 2 F64153
257
DTCA/F sensor 1 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0171 1 F271
F845
Ground Not existed 249
P0174 2 F64153
257
At idling: Approximately 350 kPa (3.50 bar, 3.57 kg/cm2, 51 psi)

EC-204
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
6. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK FUEL PRESSURE
1. Release fuel pressure to zero. Refer to EC-411, "
Inspection".
2. Install fuel pressure gauge and check fuel pressure. Refer to EC-411, "
Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace “fuel filter and fuel pump assembly”.
5.CHECK MASS AIR FLOW SENSOR
With CONSULT-III
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT-III.
For specification, refer to EC-414, "
Mass Air Flow Sensor".
With GST
1. Install all removed parts.
2. Check mass air flow sensor signal in “Service $01” with GST.
For specification, refer to EC-414, "
Mass Air Flow Sensor".
Is the measurement value within the specification?
YES >> GO TO 6.
NO >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
ground. Refer to EC-150, "
Diagnosis Procedure".
6.CHECK FUNCTION OF FUEL INJECTOR
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3. Check that each circuit produces a momentary engine speed drop.
With GST
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Perform trouble diagnosis for FUEL INJECTOR, refer to
EC-334, "
Diagnosis Procedure".
7.CHECK FUEL INJECTOR
1. Remove fuel injector assembly. Refer to EM-44, "
Removal and Installation".
DTCA/F sensor 1 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0172 1 F271
F845
Ground Not existed 249
P0175 2 F64153
257
At idling: Approximately 350 kPa (3.50 bar, 3.57 kg/cm2, 51 psi)
PBIB3332E

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)

FUEL PRESSURE
EC-411
< ON-VEHICLE MAINTENANCE >[VQ25DE, VQ35DE]
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ON-VEHICLE MAINTENANCE
FUEL PRESSURE
InspectionINFOID:0000000003856884
FUEL PRESSURE RELEASE
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT-III
1. Remove fuel pump fuse located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because J32 models do not have fuel return system.
Be careful not to scratch or get the fuel hose connection area dirty when servicing, so that the quick
connector o-ring maintains seal ability.
1. Release fuel pressure to zero.
2. Remove fuel hose using Quick Connector Release.
 Do not twist or kink fuel hose because it is plastic hose.
 Keep fuel hose connections clean.
3. Install Fuel pressure adapter (B) and Fuel pressure gauge (A)
as shown in figure.
 Do not distort or bend fuel rail tube when installing fuel pres-
sure gauge adapter.
 When reconnecting fuel hose, check the original fuel hose for
damage and abnormality.
4. Turn ignition switch ON (reactivate fuel pump) and check for fuel
leakage.
5. Start engine and check for fuel leakage.
6. Read the indication of fuel pressure gauge kit.
 During fuel pressure check, check for fuel leakage from fuel
connection every 3 minutes.
7. If result is unsatisfactory, go to next step.
8. Check the following.
 Fuel hoses and fuel tubes for clogging
 Fuel filter for clogging
 Fuel pump
 Fuel pressure regulator for clogging
9. If OK, replace fuel pressure regulator.
If NG, repair or replace malfunctioning part.
At idling
: Approximately 350 kPa (3.5 bar, 3.57 kg/cm2, 51 psi)
JMBIA1392ZZ

EM-1
ENGINE
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SECTION EM
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CONTENTS
ENGINE MECHANICAL
SYMPTOM DIAGNOSIS ...............................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
3
NVH Troubleshooting - Engine Noise .......................3
Use the Chart Below to Help You Find the Cause
of the Symptom .........................................................
4
PRECAUTION ...............................................5
PRECAUTIONS ...................................................5
Precaution for Procedure without Cowl Top Cover ......5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
5
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
5
Precaution for Drain Engine Coolant and Engine
Oil ..............................................................................
6
Precaution for Disconnecting Fuel Piping .................6
Precaution for Removal and Disassembly ................6
Precaution for Inspection, Repair and Replace-
ment ..........................................................................
6
Precaution for Assembly and Installation ..................6
Precaution for Angle Tightening ................................6
Precaution for Liquid Gasket .....................................7
PREPARATION ............................................8
PREPARATION ...................................................8
Special Service Tool .................................................8
Commercial Service Tool ..........................................9
ON-VEHICLE MAINTENANCE ....................12
DRIVE BELT .......................................................12
Exploded View ........................................................12
Checking .................................................................12
Tension Adjustment ................................................12
Removal and Installation .........................................12
AIR CLEANER FILTER ......................................14
Removal and Installation .........................................14
SPARK PLUG ...................................................15
Exploded View .........................................................15
Removal and Installation .........................................15
Inspection ................................................................16
CAMSHAFT VALVE CLEARANCE ..................17
Inspection and Adjustment ......................................17
COMPRESSION PRESSURE ...........................22
Inspection ................................................................22
ON-VEHICLE REPAIR .................................24
ENGINE COVER ...............................................24
Exploded View .........................................................24
Removal and Installation .........................................24
DRIVE BELT AUTO TENSIONER AND IDLER
PULLEY .............................................................
25
Exploded View .........................................................25
Removal and Installation .........................................25
AIR CLEANER AND AIR DUCT .......................26
Exploded View .........................................................26
Removal and Installation .........................................26
Inspection ................................................................27
INTAKE MANIFOLD COLLECTOR ..................28
Exploded View .........................................................28
Removal and Installation .........................................29
INTAKE MANIFOLD .........................................32
Exploded View .........................................................32
Removal and Installation .........................................32
Inspection ................................................................33
EXHAUST MANIFOLD AND THREE WAY
CATALYST ........................................................
34
Exploded View .........................................................34
Removal and Installation .........................................34
Inspection ................................................................37

EM-14
< ON-VEHICLE MAINTENANCE >
AIR CLEANER FILTER
AIR CLEANER FILTER
Removal and InstallationINFOID:0000000003802240
REMOVAL
1. Unhook air cleaner case (lower) side clips and lift up air cleaner case (upper).
2. Remove air cleaner filter from air cleaner case (lower).
INSTALLATION
Note the following, and install in the reverse order of removal.
 Install the air cleaner filter by aligning the seal with the notch of air cleaner case.
PBIC1165E

EM-26
< ON-VEHICLE REPAIR >
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000003802250
Removal and InstallationINFOID:0000000003802251
REMOVAL
1. Remove air duct (inlet).
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect PCV hose.
4. Remove air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly disconnect-
ing their joints.
 Add mating marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case (upper), as necessary.
CAUTION:
Handle mass air flow sensor with following cares.
 Never shock mass air flow sensor.
 Never disassemble mass air flow sensor.
1. Mass air flow sensor 2. Air cleaner case (upper) 3. Air cleaner filter
4. Clamp 5. Air duct assembly 6. Clamp
7. PCV hose 8. Air duct (inlet) 9. Grommet
10. Collar 11. Grommet 12. Grommet
13. Bracket 14. Bracket 15. Collar
16. Grommet 17. Air cleaner case (lower)
A. To electric throttle control actuator B. To rocker cover (bank 2) C. VQ25DE
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA2193GB

EM-38
< ON-VEHICLE REPAIR >
OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
Exploded ViewINFOID:0000000003802261
Removal and InstallationINFOID:0000000003802262
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
When removing oil pan (lower) or oil strainer only, take step 1 then step 18 and 19.
1. Drain engine oil. Refer to LU-8, "
Draining".
CAUTION:
Never spill engine oil on drive belt.
2. Drain engine coolant. Refer to CO-8, "
Draining".
CAUTION:
Never spill engine coolant on drive belt.
3. Remove following parts:
 Front road wheel and tires (RH and LH)
1. Oil pan (upper) 2. O-ring 3. Oil pan gasket (front)
4. Relief valve 5. Oil pressure switch 6. Oil cooler
7. Connector bolt 8. Oil filter 9. Oil strainer
10. Drain plug 11. Drain plug washer 12. Oil pan (lower)
13. Rear plate cover 14. Crankshaft position sensor (POS) 15. Oil pan gasket (rear)
A. Refer to LU-10
B. To oil pump C. Oil pan side
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA1636GB

OIL PAN AND OIL STRAINER
EM-39
< ON-VEHICLE REPAIR >
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 Splash guard (RH and LH): Refer to EXT-22, "FENDER PROTECTOR : Exploded View".
 Exhaust front tube: Refer to EX-5, "
Exploded View".
 Drive belt: Refer to EM-12, "
Removal and Installation".
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to HA-36,
"Exploded View".
5. Remove oil level gauge. Refer to EM-96, "
Exploded View".
6. Remove front drive shaft (RH). Refer to FAX-16, "
Exploded View".
7. Remove three way catalyst (bank 1 and bank 2) from exhaust manifolds (bank 1 and bank 2). Refer to
EM-34, "
Exploded View".
8. Remove oil pressure switch.
9. Remove oil filter. Refer to LU-10, "
Removal and Installation".
10. Remove oil cooler and water pipes. Refer to LU-11, "
Exploded View".
11. Support transaxle assembly with a suitable jack.
CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
12. Support front suspension member with a suitable jack.
13. Remove engine mounting insulator (rear). Refer to EM-67, "
Exploded View".
14. Remove engine mounting insulator (LH) mounting bolts from transaxle. Refer to EM-67, "
Exploded View".
15. Remove rear torque rod through bolts from rear torque rod bracket. Refer to EM-67, "
Exploded View".
16. Remove member stay, front suspension member fixing bolts and nuts. Refer to FSU-16, "
Exploded View".
17. Lower the jack for the front suspension member to the height.
18. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to
remove.
b. Insert the seal cutter [SST: KV10111100 (J37228)] (A) between
oil pan (upper) and oil pan (lower).
CAUTION:
 Be careful not to damage the mating surfaces.
 Never insert a screwdriver, this will damage the mating
surfaces.
c. Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).
19. Remove oil strainer.
PBIC0782E
JPBIA0276ZZ