2014 NISSAN TEANA ESP

P0300, P0301, P0302, P0303, P0304, P0305, P0306 MISFIRE
EC-813
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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For procedure, refer to
EC-675, "Work Procedure".
For specification, refer to EC-998, "Idle Speed"
and EC-998, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-675, "Work Procedure"
.
13.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect corresponding A/F sensor 1 harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
5. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector
and ground.
6. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 14.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
14.CHECK A/F SENSOR 1 HEATER
Check A/F sensor 1 heater. Refer to EC-720, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace malfunctioning A/F sensor 1. Refer to EM-152, "Removal and Installation (LH)"
or EM-
153, "Removal and Installation (RH)".
15.CHECK MASS AIR FLOW SENSOR
With CONSULT
1. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT.
2. For specification, refer to EC-998, "Mass Air Flow Sensor"
.
With GST
1. Check mass air flow sensor signal in Service $01 with GST.
A/F sensor 1 ECM Continuity
Bank Connector Terminal Connector Terminal
1F12 1
F79 69
Existed
273
2F61 177
281
A/F sensor 1 Ground Continuity
Bank Connector Terminal
1F12 1
Ground Not existed
2
2F61 1
2
ECM Ground Continuity
Connector Terminal
F79 69
Ground Not existed
73
77
81
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0643 SENSOR POWER SUPPLYEC-885
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0643 SENSOR POWER SUPPLY
DescriptionINFOID:0000000009462738
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
• Accelerator pedal position (APP) sensor 1
• Camshaft position (CMP) sensor (PHASE)
• Electric throttle control actuator
• Battery current sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• Accelerator pedal position (APP) sensor 2
• Crankshaft position (CKP) sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
• Engine oil pressure sensor
DTC LogicINFOID:0000000009462739
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Proceed to EC-885, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462740
1.CHECK SENSOR POWER SUPPLY 1
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
DTC No. Trouble diagnosis name
(Trouble diagnosis con- tent) DTC detecting condition Possible cause
P0643 SENSOR POWER/
CIRC
(Sensor power supply 1
circuit short) ECM detects a voltage of power source
for sensor is excessively low or high. Sensor power supply 1 circuit
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-890
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1148, P1168 CLOSED LOOP CONTROL
P1148, P1168 CLOSED LOOP CONTROL
DTC LogicINFOID:0000000009462745
DTC DETECTION LOGIC
NOTE:
DTC P1148 or P1168 is displayed wi th another DTC for A/F sensor 1.
Perform the trouble diagnosi s for the corresponding DTC.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1148 Closed loop control
function (bank 1) The closed loop control function for bank 1 does
not operate even when vehicle is being driven
in the specified condition. • Harness or connectors
(The A/F sensor 1 circuit is open or short-
ed.)
• A/F sensor 1
• A/F sensor 1 heater
P1168 Closed loop control
function (bank 2) The closed loop control function for bank 2 does
not operate even when vehicle is being driven
in the specified condition.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SENSOR POWER SUPPLY2 CIRCUITEC-981
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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SENSOR POWER SUPPLY2 CIRCUIT
DescriptionINFOID:0000000009462861
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
• Accelerator pedal position (APP) sensor 1
• Camshaft position (CMP) sensor (PHASE)
• Electric throttle control actuator
• Battery current sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• Accelerator pedal position (APP) sensor 2
• Crankshaft position (CKP) sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
• Engine oil pressure sensor
Diagnosis ProcedureINFOID:0000000009462862
1.CHECK SENSOR POWER SUPPLY 1
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect following sensors harness connector.
3. Check harness for short to power and short to ground, between the following terminals.
+
−Vo l ta g e
(Approx.)
ECM
Connector Terminal
F79 54
Ground 5 V
96
E32 103
107
ECM Sensor + Name +
Connector Terminal Connector Terminal
F79 54 CKP sensor (POS) F30 1
96 Refrigerant pressure sensor E219 1
E32 103 APP sensor 2 E40 5
107
EVAP control system pressure sensor B41 3
EOP sensor F87 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

PRECAUTIONSEM-5
< PRECAUTION > [QR25DE]
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Special Cautions to Ensu
re the Safe Disposal of Sodium-filled Exhaust Valves
INFOID:0000000009460457
Handling and disposal of sodium-filled exhaust valves requires spe-
cial care and consideration. Under conditions such as breakage with
subsequent contact with water, metal sodium which lines the inner
portion of exhaust valve will react violently, forming sodium hydrox-
ide and hydrogen which may result in an explosion. Sodium-filled
exhaust valve is identified on the top of its stem as shown in illustra-
tion.
DEALER DISPOSAL INSTRUCTIONS
CAUTION:
• Use approved shatter-resistant eye protect ion when performing this procedure.
• Perform this and all subsequent disposal work procedures in an open room, away from flammable
liquids. Keep a fire extinguisher, rated at l east 10 ABC, in close proximity to the work area.
• Be sure to wear rubber gloves when performing the following operations.
• Make sure the resultant (high alkal inity) waste water does not contact your skin. If the waste water
does contact you, wash the contacted area i mmediately with large quantities of water.
• Dealers should check their respecti ve state and local regulations concerning any chemical treatment
or waste water discharge permits which may be requ ired to dispose of the resultant (high alkalinity)
waste water.
1. Clamp valve stem in a vice.
2. The valve has a specially-hardened surface. To cut through it, first remove a half-round section, approximately 30 mm (1.18 in)
long using air-powered grinder until black color is removed and
silver color appears.
3. Use hacksaw to cut through approximately half the diameter of valve stem. Make the serration at a point 40 mm (1.57 in) from
the end of valve stem.
(A) : Identification mark of sodium-filled exhaust valve
AWBIA1366ZZ
(A) : Black color
(B) : Silver color
(c) : 47 mm (1.85 in)
(d) : 17 mm (0.67 in)
JPBIA4964ZZ
(a) : 40 mm (1.57 in)
JPBIA4965ZZ
Revision: November 20132014 Altima NAM

COMPRESSION PRESSUREEM-27
< PERIODIC MAINTENANCE > [QR25DE]
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• If two adjacent cylinders have respectively low compression pressure and their compression remains low
even after the addition of engine oil, the head gasket is leaking. In such a case, replace the cylinder head
gasket.
8. Install spark plug, ignition co il and harness connectors. Refer to EM-16, "Removal and Installation"
.
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-89
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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9. Remove the ignition coils. Refer to
EM-40, "Removal and Installation".
10. Remove the rocker cover. Refer to EM-45, "Removal and Installation"
.
11. Remove the front cover, timing chain, and balancer unit. Refer to EM-62, "Removal and Installation"
.
12. Remove the cylinder head. Refer to EM-74, "Removal and Installation"
.
13. Remove oil cooler. Refer to LU-16, "Exploded View"
.
14. Remove the knock sensor. CAUTION:
Carefully handle the sensor and do not drop the sensor.
15. Remove crankshaft position sensor (POS) (2) and O-ring (1).
CAUTION:
• Avoid impacts such as a dropping.
• Do not disassemble.
• Keep it away from metal particles.
• Do not place sensor close to magnetic materials.
• Do not reuse O-ring.
16. Remove the piston and connecting rod assemblies.
a. Position the crankshaft and corresponding connecting rod, to be removed, to the bottom dead center stroke.
b. Remove the connecting rod cap. Number the cap so it can be assembled in the same position.
c. Using a hammer handle or similar tool, push the piston and con- necting rod assembly out of the top of the cylinder block. Num-
ber the piston and rod so it can be assembled in the same
position.
• Before removing the piston and connecting rod assembly,
check the connecting rod side clearance. Refer to EM-96,
"Inspection After Disassembly".
17. Remove the connecting rod bearings. If reusing, num ber them so they can be assembled in the same
position and direction.
CAUTION:
• When removing them, note the installation position. Keep them in the correct order.
18. Remove the piston rings from the piston. • Use a piston ring expander.
• Before removing the piston rings, check the piston ring side
clearance. Refer to EM-96, "Inspection After Disassembly"
.
CAUTION:
• When removing the piston rings, be careful not to damage
the piston.
• Be careful not to damage piston rings by expanding them excessively, if reusing them.
: Engine front
AWBIA1332GB
PBIC0259E
PBIC0087E
Revision: November 20132014 Altima NAM

EM-92
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
3. Install oil jets (A).
4. Install the main bearings and the thrust bearings.
a. Remove dust, dirt, and oil from the bearing mating surfaces of the cylinder block and lower cylinder block.
b. Install the thrust bearings (1) to both sides of the No. 3 main bearing journal (F) on the cylinder block.
• Install the thrust bearings with the oil groove (G) facing the
crankshaft arm (outside).
c. Install the main bearings paying attention to their position and direction.
• The main bearing with an oil hole and groove goes on the cyl- inder block side (A). The one without them goes on the lower
cylinder block side (B).
• Only the main bearing (on the cylinder block side) for No. 3 journal (6) has different specifications.
• Before installing the bearings, apply engine oil to the bearing
friction surface (inside). Do not apply oil to the back surface,
but thoroughly clean it.
• When installing, align the bearing stopper (1), (5) to the notch.
• Make sure that the oil holes on the cylinder block and those on the corresponding bearing (2), (4) are aligned.
5. Install the signal plate to the crankshaft.
a. Position the crankshaft and signal plate using a positioning dowel pin, and tighten the bolts to specification.
b. Remove the dowel pin. CAUTION:
Be sure to remove dowel pin before installing the crank-
shaft.
NOTE:
Dowel pins for the crankshaft and signal plate are supplied as a
set for each.
6. Install the crankshaft onto the cylinder block. • While turning the crankshaft by hand, check that it turnssmoothly.
: Engine front
JPBIA0686ZZ
(A) : No. 1
(B) : No. 2
(C) : No. 3
(D) : No. 4
(E) : No. 5
: Engine front
AWBIA1329GB
(3) : Bearing other than No. 3
(7) : Thrust bearings
AWBIA0186ZZ
ALBIA0208ZZ
Revision: November 20132014 Altima NAM