![NISSAN TEANA 2008 Service Manual EC-188
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0138, P0158 HO2S2
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground NISSAN TEANA 2008 Service Manual EC-188
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0138, P0158 HO2S2
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground](/manual-img/5/57391/w960_57391-1648.png)
EC-188
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P0138, P0158 HO2S2
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK HO2S2 CONNECTOR FOR WATER
Check connectors for water.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness or connectors.
6.CHECK HEATED OXYGEN SENSOR 2
Refer to EC-190, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
8.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
9.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-37, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair or replace ground connection.
10.CLEAR MIXTURE RATIO SELF-LEARNING VALUE
1. Clear the mixture ratio self-learning value. Refer to EC-18, "
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement".
2. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0172 or P0175 detected? Is it difficult to start engine?
YES >> Perform trouble diagnosis for DTC P0172, P0175. Refer to EC-202, "DTC Logic".
NO >> GO TO 11.
11 .CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
DTCHO2S2 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0138 1 F70 4
F833
Ground Not existed
P0158 2 F71 4 34
Water should not exist.
![NISSAN TEANA 2008 Service Manual P0138, P0158 HO2S2
EC-189
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM NISSAN TEANA 2008 Service Manual P0138, P0158 HO2S2
EC-189
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1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM](/manual-img/5/57391/w960_57391-1649.png)
P0138, P0158 HO2S2
EC-189
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between HO2S2 harness connector and ECM harness connector.
5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
12.CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between HO2S2 harness connector and ECM harness connector.
2. Check the continuity between HO2S2 harness connector or ECM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 13.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
13.CHECK HEATED OXYGEN SENSOR 2
Refer to EC-190, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 15.
NO >> GO TO 14.
14.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
15.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0138 1 F70 1
F8 35 Existed
P0158 2 F71 1
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0138 1 F70 4
F833
Existed
P0158 2 F71 4 34
DTCHO2S2 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0138 1 F70 4
F833
Ground Not existed
P0158 2 F71 4 34
![NISSAN TEANA 2008 Service Manual P0138, P0158 HO2S2
EC-191
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-I NISSAN TEANA 2008 Service Manual P0138, P0158 HO2S2
EC-191
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-I](/manual-img/5/57391/w960_57391-1651.png)
P0138, P0158 HO2S2
EC-191
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-III
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 6.
6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Keeping engine at idle for 10 minutesThe voltage should be above 0.68 V at
least once during this procedure.
The voltage should be below 0.18 V at
least once during this procedure. 34
[HO2S2 (bank 2)
signal]
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Coasting from 80 km/h (50 MPH) in D po-
sitionThe voltage should be above 0.68 V at
least once during this procedure.
The voltage should be below 0.18 V at
least once during this procedure. 34
[HO2S2 (bank 2)
signal]
![NISSAN TEANA 2008 Service Manual P0139, P0159 HO2S2
EC-195
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> NISSAN TEANA 2008 Service Manual P0139, P0159 HO2S2
EC-195
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5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>](/manual-img/5/57391/w960_57391-1655.png)
P0139, P0159 HO2S2
EC-195
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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5. Also check harness for short to ground and 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 HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between HO2S2 harness connector and ECM harness connector.
2. Check the continuity between HO2S2 harness connector or ECM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK HEATED OXYGEN SENSOR 2
Refer to EC-195, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
7.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000003856591
1.INSPECTION START
Will CONSULT-III be used?
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0139 1 F70 1
F8 35 Existed
P0159 2 F71 1
DTCHO2S2 ECM
Continuity
Bank Connector Terminal Connector Terminal
P0139 1 F70 4
F833
Existed
P0159 2 F71 4 34
DTCHO2S2 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P0139 1 F70 4
F833
Ground Not existed
P0159 2 F71 4 34
![NISSAN TEANA 2008 Service Manual P0139, P0159 HO2S2
EC-197
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-I NISSAN TEANA 2008 Service Manual P0139, P0159 HO2S2
EC-197
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-I](/manual-img/5/57391/w960_57391-1657.png)
P0139, P0159 HO2S2
EC-197
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK HEATED OXYGEN SENSOR 2-III
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 6.
6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Keeping engine at idle for 10 minutesThe voltage should be above 0.68 V at
least once during this procedure.
The voltage should be below 0.18 V at
least once during this procedure. 34
[HO2S2 (bank 2)
signal]
ECM
Condition Voltage
Connector+–
Terminal Terminal
F833
[HO2S2 (bank 1)
signal]35
(Sensor
ground)Coasting from 80 km/h (50 MPH) in D po-
sitionThe voltage should be above 0.68 V at
least once during this procedure.
The voltage should be below 0.18 V at
least once during this procedure. 34
[HO2S2 (bank 2)
signal]
![NISSAN TEANA 2008 Service Manual EC-320
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P2A00, P2A03 A/F SENSOR 1
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
IPDM E/R ha NISSAN TEANA 2008 Service Manual EC-320
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P2A00, P2A03 A/F SENSOR 1
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
IPDM E/R ha](/manual-img/5/57391/w960_57391-1780.png)
EC-320
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P2A00, P2A03 A/F SENSOR 1
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
IPDM E/R harness connector F12
15A fuse (No. 46)
Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
8.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector or ECM harness connector and ground.
5. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
9.CHECK INTERMITTENT INCIDENT
Perform GI-35, "
Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair or replace malfunctioning part.
10.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1.
CAUTION:
Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner and approved anti-seize lubricant.
>> INSPECTION END
DTCA/F sensor 1 ECM
Continuity
Bank Connector Terminal Connector Terminal
P2A00 1 F271
F845
Existed 249
P2A03 2 F64153
257
DTCA/F sensor 1 ECM
Ground Continuity
Bank Connector Terminal Connector Terminal
P2A00 1 F271
F845
Ground Not existed 249
P2A03 2 F64153
257

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

EM-64
< ON-VEHICLE REPAIR >
TIMING CHAIN
a. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case back side as
shown in the figure.
Use Genuine Liquid Gasket or equivalent.
b. Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
c. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.
There are two types of mounting bolt. Refer to the following for
locating bolts.
d. After all bolts tightening, retighten them to the specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
e. After installing front timing chain case, check the surface height
difference between the following parts on the oil pan (upper)
mounting surface.
If not within the standard, repeat the installation procedure.
13. Install intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
b. Being careful not to move seal rings from the installation grooves, align dowel pins on front timing chain
case with the holes to install valve timing control covers.
D: Bolt hole
E : Protrusion
f: φ2.6 - 3.6 mm (0.102 - 0.142 in)
JPBIA1782ZZ
M8 bolts : 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Standard
Front timing chain case to rear timing chain case:
−0.14 to 0.14 mm (−0.006 to 0.006 in)
JPBIA1640ZZ
SEM943G