2006 INFINITI M35 Factory Service Manual

jacking points climate settings sunroof fuel consumption headlight bulb bolt pattern

Page 1865 of 5621

INFINITI M35 2006 Factory Service Manual EC-322
[VQ35DE]
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
7. If it is difficult to start engine at step 6, the fuel injection system has a malfunction, too.
8.

EC-322
[VQ35DE]
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
7. If it is difficult to start engine at step 6, the fuel injection system has a malfunction, too.
8. Crank engine while depressing accelerator pedal. If engine starts, go to EC-327, "
Diagnostic Procedure" .
If engine does not start, check exhaust and intake air leak visually.
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Disconnect mass air flow sensor (1) harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor harness con-
nector.
6. Select Service $03 with GST. Make sure DTC P0102 is
detected.
7. Select Service $04 with GST and erase the DTC P0102.
8. Start engine again and let it idle for at least 10 minutes.
9. Select Service $07 with GST. The 1st trip DTC P0171 or P0174
should be detected at this stage, if a malfunction exists. If so, go
to EC-327, "
Diagnostic Procedure" .
NOTE:
If 1st trip DTC is not detected during above procedure, performing the following procedure is advised.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for 10 min-
utes. Refer to the table below.
Hold the accelerator pedal as steady as possible.
The similar conditions to (1st trip) Freeze Frame Data means the vehicle operation that the following con-
ditions should be satisfied at the same time.
10. If it is difficult to start engine at step 8, the fuel injection system has a malfunction.
11. Crank engine while depressing accelerator pedal. If engine starts, go to EC-327, "
Diagnostic Procedure" .
If engine does not start, check exhaust and intake air leak visually.
PBIB2783E
Engine speed Engine speed in the freeze frame data 400 rpm
Vehicle speed Vehicle speed in the freeze frame data
10 km/h (6 MPH)
Engine coolant temperature
(T) conditionWhen the freeze frame data shows lower than 70
C (158 F),
T should be lower than 70
C (158 F).
When the freeze frame data shows higher than or equal to 70
C (158 F),
T should be higher than or equal to 70
C (158 F).

Page 1866 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-323
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Revision: 2006 January2006 M35/M45
Wiring DiagramNBS004XU
BANK 1
TBWT0956E

Page 1867 of 5621

INFINITI M35 2006 Factory Service Manual EC-324
[VQ35DE]
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sign

Page 1868 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-325
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Revision: 2006 January2006 M35/M45
BANK 2
TBWT0957E

Page 1869 of 5621

INFINITI M35 2006 Factory Service Manual EC-326
[VQ35DE]
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sign

Page 1870 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-327
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Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNBS004XV
1. CHECK EXHAUST GAS LEAK
1. Start engine and

Page 1871 of 5621

INFINITI M35 2006 Factory Service Manual EC-328
[VQ35DE]
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
3. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect corresponding A

Page 1872 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-329
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Revision: 2006 January2006 M35/M45
4. CHECK FUEL PRESSURE
1. Release fuel pressure to zero. Refer to EC-98, &#

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