2007 NISSAN 350Z fuel pump

EC-696
FUEL PUMP
Revision: 2006 November2007 350Z
12. CHECK FUEL PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Disconnect “fuel level sensor unit and fuel pump” harness con-
nector.
2. Disconnect harness connectors E107, B3.
3. Check harness continuity between the following;
“fuel level sensor unit and fuel pump” terminal 1 and harness
connector B3 terminal 4,
“fuel level sensor unit and fuel pump” terminal 3 and ground.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.

Harness connector B3

Harness connectors B43, T1 (Coupe models)

Harness connectors B39, D102 (Coupe models)

Harness connectors B61, T23 (Roadster models)

Harness for open or short between “fuel level sensor unit and fuel pump” and harness connector B3

Harness for open or short between “fuel level sensor unit and fuel pump” and ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK FUEL PUMP
Refer to EC-697, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace “fuel level sensor unit and fuel pump”.
15. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair or replace harness or connectors.Continuity should exist.
PBIB1665E

FUEL PUMP
EC-697
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Component InspectionNBS000I0
FUEL PUMP
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.
CONDENSER
1. Disconnect condenser harness connector.
2. Check resistance between condenser terminals 1 and 2.
Removal and InstallationNBS000I1
FUEL PUMP
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" . Resistance: 0.2 - 5.0Ω [at 25°C (77°F)]
SEC918C
Resistance: Above 1 MΩ [at 25°C (77°F)]
PBIB0794E

IGNITION SIGNAL
EC-709
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
7. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
8. Start engine.
9. After engine stalls, crank it two or three times to release all fuel
pressure.
10. Turn ignition switch OFF.
11. Remove ignition coil harness connectors to avoid the electrical
discharge from the ignition coils.
12. Remove ignition coil and spark plug of the cylinder to be
checked.
13. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
14. Connect spark plug and harness connector to ignition coil.
15. 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.
16. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded part.
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 17 mm or more is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
17. If NG, Replace ignition coil with power transistor.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals 1 and 2.
Removal and InstallationNBS000HP
IGNITION COIL WITH POWER TRANSISTOR
Refer to EM-31, "IGNITION COIL" . Spark should be generated.
PBIB2206E
PBIB2325E
Resistance: Above 1 MΩ [at 25°C (77°F)]
PBIB0794E

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-719
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Throttle Control MotorNBS000IT
Fuel InjectorNBS000IU
Fuel PumpNBS000IV
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 11.1 - 14.3Ω
Resistance [at 25°C (77°F)] 0.2 - 5.0Ω