fuel pump NISSAN NAVARA 2005 Repair Owner's Guide

DTC P0088 FUEL SYSTEM
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3.CHECK FUEL PUMP
Refer toEC-221, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
>>INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Removal and InstallationEBS01KDL
FUEL INJECTOR
Refer toEM-44, "INJECTION TUBE AND FUEL INJECTOR".
FUEL PUMP
Refer toEM-49, "FUEL PUMP".

EC-86
DTC P0089 FUEL PUMP
DTC P0089 FUEL PUMP
PFP:16700
On Board Diagnosis LogicEBS01KDM
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P0089 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC P0652
or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KDN
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Let engine idle for at least 30 seconds.
4. If DTC is detected, go toEC-87, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for at least 30 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
5. If DTC is detected, go toEC-87, "
Diagnostic Procedure".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0089
0089Fuel pump performanceFuel pressure is too much higher than the target
value.
lFuel pump
lAir mixed with fuel
lLack of fuel
lFuel rail pressure sensor
SEF817Y

DTC P0089 FUEL PUMP
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Diagnostic ProcedureEBS01KDO
1.PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused by lack of fuel), it may become normal by
performing following procedure.
With CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
3. Start engine and let it idle for at least 60 seconds.
4. Select “SELF-DIAG RESULT” mode with CONSULT-II.
5. Touch “ERASE”.
6. PerformEC-86, "
DTC Confirmation Procedure",again.
7. Is DTC detected again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
3. Start engine and let it idle for at least 60 seconds.
4. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer toEC-27
.
5. PerformEC-86, "
DTC Confirmation Procedure",again.
6. Is DTC detected again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2.CHECK FUEL RAIL PRESSURE SENSOR
Refer toEC-122, "
Component Inspection".
OK or NG
OK >> GO TO 3.
NG >> Replace fuel rail.
3.CHECK FUEL PUMP
Refer toEC-221, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.REPLACE FUEL PUMP
1. Replace Fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
>>INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Removal and InstallationEBS01KDP
FUEL PUMP
Refer toEM-49, "FUEL PUMP".

EC-88
DTC P0093 FUEL SYSTEM
DTC P0093 FUEL SYSTEM
PFP:17520
On Board Diagnosis LogicEBS01KDQ
NOTE:
If DTC P0093 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC P0652
or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KDR
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds.
4. If DTC is detected, go toEC-89, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and keep engine speed more than 4,000 rpm for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-89, "
Diagnostic Procedure".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0093
0093Fuel system leakECM detects a fuel system leak.
(The relation between the output voltage to the
fuel pump and input voltage from the fuel rail
pressure sensor is out of the normal range.)
lFuel pump
lFuel rail
lFuel pipe
lFuel rail pressure relief valve
lAir mixed with fuel
lLack of fuel
SEF817Y

DTC P0093 FUEL SYSTEM
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Diagnostic ProcedureEBS01KDS
1.PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused by lack of fuel), it may become normal by
performing following procedure.
With CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
3. Start engine and let it idle for at least 60 seconds.
4. Select “SELF-DIAG RESULT” mode with CONSULT-II.
5. Touch “ERASE”.
6. PerformEC-88, "
DTC Confirmation Procedure",again.
7. Is DTC detected again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
3. Start engine and let it idle for at least 60 seconds.
4. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer toEC-27
.
5. PerformEC-88, "
DTC Confirmation Procedure",again.
6. Is DTC detected again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2.CHECK FUEL LINE FOR LEAK
1. Start engine.
2. Visually check the following for fuel leak.
–Fuel tube from fuel pump to fuel rail
–Fuel rail
–Fuel tube from fuel rail to fuel injector
3. Also check for improper connection or pinches.
OK or NG
OK >> GO TO 3.
NG >> Repair malfunctioning part.
3.CHECK FUEL RAIL PRESSURE RELIEF VALVE
Refer toEC-90, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace.

EC-90
DTC P0093 FUEL SYSTEM
5.REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
>>INSPECTION END
Component InspectionEBS01KDT
FUEL RAIL PRESSURE RELIEF VALVE
With CONSULT-II
WARNING:
lConfirm that the engine is cooled down and there are no fire hazards near the vehicle.
lPrepare pans or saucers under the disconnected fuel line because the fuel may spill out.
1. Turn ignition switch OFF.
2. Remove fuel hose from fuel rail pressure relief valve.
3. Attach a blind cap or plug to removed hose.
4. Turn ignition switch ON.
5. Select “PRES REGULATOR” in “ACTIVE TEST MODE” with
CONSULT-II.
6. Start engine and keep engine speed 2,000 rpm.
7. Raisefuelpressureto180MPawithtouching“UP”or“Qu”on
the CONSULT-II screen.
8. Confirm that the fuel does not come out from the fuel rail pres-
sure relief valve.
WARNING:
lBe careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.
lIf the fuel comes out, stop the engine immediately.
Without CONSULT-II
WARNING:
lConfirm that the engine is cooled down and there are no fire hazards near the vehicle.
lPrepare pans or saucers under the disconnected fuel line because the fuel may spill out.
1. Turn ignition switch OFF.
2. Remove fuel hose from fuel rail pressure relief valve.
3. Attach a blind cap or plug to removed hose.
4. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds.
5. Confirm that the fuel does not come out from the fuel rail pres-
sure relief valve.
WARNING:
lBe careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.
lIf the fuel comes out, stop the engine immediately.
PBIB1941E
PBIB0587E
PBIB1941E

DTC P0093 FUEL SYSTEM
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Removal and InstallationEBS01KDU
FUEL RAIL
Refer toEM-44, "INJECTION TUBE AND FUEL INJECTOR".
FUEL PUMP
Refer toEM-49, "FUEL PUMP".

DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
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DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSORPFP:16700
DescriptionEBS01KER
Fuel pump temperature sensor (1) is built in the fuel pump (2). The
sensor detects the fuel temperature in the fuel pump and calibrates
the fuel injection amount change by fuel temperature.
CONSULT-II Reference Value in Data Monitor ModeEBS01KES
Specification data are reference values.
ECM Terminals and Reference ValueEBS01KET
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicEBS01KEU
The MI will not light up for these self-diagnoses.
MBIB1389E
MONITOR ITEM CONDITION SPECIFICATION
FUEL TEMP SEN
lEngine: After warming up More than 40°C(104°F)
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
50 Y Fuel pump temperature sensor[Engine is running]
lWarm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
69 BFuel pump temperature sensor
ground[Ignition switch ON]Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0182
0182Fuel pump temperature
sensor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
lHarness or connectors
(The sensor circuit is open or
shorted.)
lFuel pump temperature sensor P0183
0183Fuel pump temperature
sensor circuit high inputAn excessively high voltage from the sensor is
sent to ECM.

EC-114
DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
DTC Confirmation Procedure
EBS01KEV
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go toEC-116, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-116, "
Diagnostic Procedure"
SEF817Y

DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
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Wiring DiagramEBS01KEW
MBWA1040E