Nissan Primera P12. Instruction — part 228
DTC P0089 FUEL PUMP
EC-97
[YD (WITH EURO-OBD)]
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EC
Removal and Installation
EBS013KO
FUEL PUMP
Refer to
.
EC-98
[YD (WITH EURO-OBD)]
DTC P0093 FUEL SYSTEM
DTC P0093 FUEL SYSTEM
PFP:17520
On Board Diagnosis Logic
EBS013KP
DTC Confirmation Procedure
EBS013KQ
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 1st trip DTC is detected, go to
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0093
Fuel system leak
ECM 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.)
●
Fuel pump
●
Fuel rail
●
Fuel pipe
●
Fuel rail pressure relief valve
●
Air mixed with fuel
●
Lack of fuel
SEF817Y
DTC P0093 FUEL SYSTEM
EC-99
[YD (WITH EURO-OBD)]
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EC
Diagnostic Procedure
EBS013KR
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 to
EC-29, "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.
Perform
EC-98, "DTC Confirmation Procedure"
, again.
7.
Is 1st trip DTC detected again?
With GST
1.
Turn ignition switch ON.
2.
Perform Fuel Pump Learning value clearing. Refer to
EC-29, "Fuel Pump Learning Value Clearing"
.
3.
Start engine and let it idle for at least 60 seconds.
4.
Select MODE 4 with GST.
5.
Touch “ERASE”.
6.
Perform
EC-98, "DTC Confirmation Procedure"
, again.
7.
Is 1st trip DTC detected again?
Yes or No
Yes
>> GO TO 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 to
EC-100, "Component Inspection"
.
OK or NG
OK
>> GO TO 4.
NG
>> Replace fuel rail.
4.
CHECK INTERMITTENT INCIDENT
Refer to
EC-75, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace.
EC-100
[YD (WITH EURO-OBD)]
DTC P0093 FUEL SYSTEM
5.
REPLACE FUEL PUMP
1.
Replace fuel pump.
2.
Perform Fuel Pump Learning Value Clearing. Refer to
EC-29, "Fuel Pump Learning Value Clearing"
.
>> INSPECTION END
Component Inspection
EBS013KS
FUEL RAIL PRESSURE RELIEF VALVE
With CONSULT-II
WARNING:
●
Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
●
Prepare 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.
Raise fuel pressure to 160 MPa with touching “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:
●
Be careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.
●
If the fuel comes out, stop the engine immediately.
Without CONSULT-II
WARNING:
●
Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
●
Prepare 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:
●
Be careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.
●
If the fuel comes out, stop the engine immediately.
MBIB0995E
PBIB0587E
MBIB0995E
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