Page 1903 of 5621
EC-360
[VQ35DE]
DTC P0222, P0223 TP SENSOR
Revision: 2006 January2006 M35/M45
Component InspectionNBS004YK
THROTTLE POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Perform EC-95, "
Throttle Valve Closed Position Learning" .
3. Turn ignition switch ON.
4. Set selector lever to D position.
5. Check voltage between ECM terminals 50 (TP sensor 1 signal),
69 (TP sensor 2 signal) and ground under the following condi-
tions.
6. If NG, replace electric throttle control actuator and go to the next
step.
7. Perform EC-95, "
Throttle Valve Closed Position Learning" .
8. Perform EC-96, "
Idle Air Volume Learning" .
Removal and InstallationNBS004YL
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-24, "INTAKE MANIFOLD" .
Terminal Accelerator pedal Voltage
50
(Throttle position sensor 1)Fully released More than 0.36V
Fully depressed Less than 4.75V
69
(Throttle position sensor 2)Fully released Less than 4.75V
Fully depressed More than 0.36V
PBIB1530E
Page 1909 of 5621
![INFINITI M35 2006 Factory Service Manual EC-366
[VQ35DE]
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in INFINITI M35 2006 Factory Service Manual EC-366
[VQ35DE]
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in](/manual-img/42/57023/w960_57023-1908.png)
EC-366
[VQ35DE]
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.
7. CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-666, "
IGNITION SIGNAL" . Spark should be generated.
PBIB2697E
PBIB2325E
Spark should be generated.
Page 1910 of 5621
![INFINITI M35 2006 Factory Service Manual DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
EC-367
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug INFINITI M35 2006 Factory Service Manual DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
EC-367
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug](/manual-img/42/57023/w960_57023-1909.png)
DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE
EC-367
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-43, "
SPARK PLUG (PLATI-
NUM-TIPPED TYPE)" .
NG >> 1. Repair or clean spark plug.
2. 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.
OK or NG
OK >>INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to MA-20, "
Changing
Spark Plugs (Platinum-Tipped Type)" .
10. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-101, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 11.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
11 . CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-98, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-98, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.
Fuel pump and circuit (Refer to EC-685, "FUEL PUMP" .)
Fuel pressure regulator (Refer to EC-98, "FUEL PRESSURE CHECK" .)
Fuel lines (Refer to FL-3, "FUEL SYSTEM" .)
Fuel filter for clogging
>> Repair or replace.
SEF156I
Spark should be generated.
At idle: Approximately 350 kPa (3.57 kg/cm
2 , 51 psi)
Page 1918 of 5621
DTC P0327, P0328 KS
EC-375
[VQ35DE]
C
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EC
Revision: 2006 January2006 M35/M45
Component InspectionNBS004YU
KNOCK SENSOR
Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure more
than 10 M
.
CAUTION:
Do not use any knock sensors that have been dropped or phys-
ically damaged. Use only new ones.
Removal and InstallationNBS004YV
KNOCK SENSOR
Refer to EM-123, "CYLINDER BLOCK" . Resistance: Approximately 532 - 588 k
[at 20C (68F)]
SEF111Y
Page 1925 of 5621
EC-382
[VQ35DE]
DTC P0335 CKP SENSOR (POS)
Revision: 2006 January2006 M35/M45
Component InspectionNBS004Z2
CRANKSHAFT POSITION SENSOR (POS)
1. Loosen the fixing bolt of the sensor.
2. Disconnect crankshaft position sensor (POS) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.
Removal and InstallationNBS004Z3
CRANKSHAFT POSITION SENSOR (POS)
Refer to EM-29, "OIL PAN AND OIL STRAINER" .
PBIB0563E
Terminal No. (Polarity) Resistance [at 25C (77F)]
1 (+) - 2 (-)
Except 0 or
1 (+) - 3 (-)
2 (+) - 3 (-)
PBIB0564E
Page 1934 of 5621
DTC P0340, P0345 CMP SENSOR (PHASE)
EC-391
[VQ35DE]
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Revision: 2006 January2006 M35/M45
10. CHECK INTERMITTENT INCIDENT
Refer to EC-165, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS004ZA
CAMSHAFT POSITION SENSOR (PHASE)
1. Loosen the fixing bolt of the sensor.
2. Disconnect camshaft position sensor (PHASE) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.
Removal and InstallationNBS004ZB
CAMSHAFT POSITION SENSOR (PHASE)
Refer to EM-84, "CAMSHAFT" .
PBIB0563E
Terminal No. (Polarity) Resistance [at 25C (77F)]
1 (+) - 2 (-)
Except 0 or
1 (+) - 3 (-)
2 (+) - 3 (-)
PBIB0564E
Page 1938 of 5621
![INFINITI M35 2006 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-395
[VQ35DE]
C
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MA
EC
Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Ch INFINITI M35 2006 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-395
[VQ35DE]
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Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Ch](/manual-img/42/57023/w960_57023-1937.png)
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-395
[VQ35DE]
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Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42
and ground with CONSULT-II or tester.
Refer to Wiring Diagram for fuel Injectors, EC-680, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-681, "
Diagnostic Procedure" .
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.Voltage: Battery voltage
PBIB1172E
Spark should be generated.
PBIB2697E
PBIB2325E
Page 1943 of 5621
![INFINITI M35 2006 Factory Service Manual EC-400
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
9. If NG, go to EC-400, "Diagnostic Procedure" .
Diagnostic ProcedureNBS004ZK
1. CHECK EVAP CANISTER
1. Turn ig INFINITI M35 2006 Factory Service Manual EC-400
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
9. If NG, go to EC-400, "Diagnostic Procedure" .
Diagnostic ProcedureNBS004ZK
1. CHECK EVAP CANISTER
1. Turn ig](/manual-img/42/57023/w960_57023-1942.png)
EC-400
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
9. If NG, go to EC-400, "Diagnostic Procedure" .
Diagnostic ProcedureNBS004ZK
1. CHECK EVAP CANISTER
1. Turn ignition switch OFF.
2. Check EVAP canister for cracks.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG >> Replace EVAP canister.
2. CHECK PURGE FLOW
With CONSULT-II
1. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port and install vacuum gauge. For the location of EVAP service port, refer to EC-40, "
EVAPORATIVE
EMISSION LINE DRAWING" .
2. Start engine and let it idle.
3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II.
4. Rev engine up to 2,000 rpm.
5. Touch “Qd” and “Qu” on CONSULT-II screen to adjust “PURG
VOL CONT/V” opening and check vacuum existence.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
3. CHECK PURGE FLOW
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port and install vacuum gauge. For the location of EVAP service port, refer to EC-40, "
EVAPORATIVE
EMISSION LINE DRAWING" .
4. Start engine and let it idle.
Do not depress accelerator pedal even slightly.
5. Check vacuum gauge indication before 60 seconds passed after starting engine.
6. Revving engine up to 2,000rpm after 100 seconds passed after starting engine.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
PURG VOL CONT/V Vacuum
100% Should exist.
0% Should not exist.
PBIB1678E
Vacuum should not exist.
Vacuum should exist.