2007 INFINITI M35 Factory Service Manual

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Page 1905 of 4647

INFINITI M35 2007 Factory Service Manual EC-376
[VQ35DE]
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured

Page 1906 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0340, P0345 CMP SENSOR (PHASE)
EC-377
[VQ35DE]
C
D
E
F
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EC
Revision: 2007 April2007 M35/M45
2. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground t

Page 1907 of 4647

INFINITI M35 2007 Factory Service Manual EC-378
[VQ35DE]
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2007 April2007 M35/M45
5. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continu

Page 1908 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0340, P0345 CMP SENSOR (PHASE)
EC-379
[VQ35DE]
C
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EC
Revision: 2007 April2007 M35/M45
10. CHECK INTERMITTENT INCIDENT
Refer to EC-153, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INC

Page 1909 of 4647

INFINITI M35 2007 Factory Service Manual EC-380
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2007 April2007 M35/M45
DTC P0420, P0430 THREE WAY CATALYST FUNCTIONPFP:20905
On Board Diagnosis LogicNBS004ZC
The ECM monitors th

Page 1910 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-381
[VQ35DE]
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Revision: 2007 April2007 M35/M45
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUP-
PORT” mode with C

Page 1911 of 4647

INFINITI M35 2007 Factory Service Manual EC-382
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2007 April2007 M35/M45
Diagnostic ProcedureNBS004ZF
1. CHECK EXHAUST SYSTEM
Visually check exhaust tubes and muffler for dent.
OK

Page 1912 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-383
[VQ35DE]
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Revision: 2007 April2007 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Chec

DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-383
[VQ35DE]
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Revision: 2007 April2007 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-670, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-671, "
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

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