2007 NISSAN TIIDA fuel pressure

INSPECTION AND ADJUSTMENT
EC-1051
< BASIC INSPECTION >[K9K]
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YES >> GO TO 15.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
15.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)-II
Refer to EC-1123, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace high pressure supply pump.
16.CHECK FUEL RAIL PRESSURE SENSOR POWER SUUPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel rail pressure sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel rail pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 17.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
17.CHECK FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel rail pressure sensor harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 18.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
18.CHECK FUEL RAIL PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between fuel rail pressure sensor harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 19.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
19.CHECK FUEL RAIL PRESSURE SENSOR
Refer to EC-1139, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 20.
NO >> Replace fuel rail.
20.CHECK FUEL RAIL PRESSURE-I
1. Reconnect all harness connectors disconnected.
Fuel rail pressure sensor
Ground Voltage (V)
Connector Terminal
F51 3 Ground Approx. 5
Fuel rail pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
F51 2 F10 15 Existed
Fuel rail pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
F51 1 F10 19 Existed

EC-1052
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INSPECTION AND ADJUSTMENT
2. Start engine and let it idle speed.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Check that the “RAIL PRESSURE” indication under the following conditions.
NOTE:
An unusual combustion noise may be heard.
Is the inspection result normal?
YES >> GO TO 22.
NO >> GO TO 21.
21.CHECK FUEL RAIL PRESSURE-II
1. Turn ignition switch OFF.
2. Replace fuel rail. Refer to EM-281, "
Removal and Installation"
3. Start engine and let it idle speed.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Check that the “RAIL PRESSURE” indication under the following conditions.
NOTE:
An unusual combustion noise may be heard.
Is the inspection result normal?
YES >> GO TO 22.
NO >> Replace high pressure supply pump.
22.INSPECTION END
High pressure supply pump (volumetric control valve) OK.
>>INSPECTION END
BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injec-
tors/Fuel Injectors Open)
INFOID:0000000001162520
NOTE:
CONDITIONS PRIOR TO TEST
- The entire low pressure system must be in good condition.
- Check the sealing of the high pressure pipes and unions.
- Test 3 High pressure supply pump (pressure control valve) check is OK
- Test 4 High pressure supply pump (volumetric control valve) check is OK
- Test 5 Rail high pressure regulation circuit check is OK.
CAUSE
- Not enough or no rail pressure during starting.
- The engine does not start.
1.CHECK FUEL INJECTOR-I
Refer to EC-1141, "
Component Inspection".
Is the inspection result normal?
CONDITION (ENGINE SPEED) INDICATION
At idle speed 190 - 210 bar
2000 rpm 400 - 500 bar
3000 rpm 500 - 700 bar
4000 rpm 700 - 900 bar
CONDITION (ENGINE SPEED) INDICATION
At idle speed 190 - 210 bar
2000 rpm 400 - 500 bar
3000 rpm 500 - 700 bar
4000 rpm 700 - 900 bar

INSPECTION AND ADJUSTMENT
EC-1053
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YES >> GO TO 2.
NO >> Replace malfunctioning fuel injector.
2.CHECK INTERNAL FUEL TRANSFER PUMP
1. Turn ignition switch OFF.
2. Disconnect the return system connections at the fuel injectors and close off the return pipes so they are
leak-tight.
3. To authorise a 15 second cranking engine and carry out this test it is essential to carry out the following
procedure:
- Disconnect high pressure supply pump (volumetric control valve) harness connector
- Turn ignition switch ON.
- Perform “SAVE DATA FOR CPU REPLC” in WORK SUPPORT mode with CONSULT-III.
- Perform “PRGRM REINITIALIZE” in WORK SUPPORT mode with CONSULT-III.
- Cranking engine for at least 15 seconds (starting speed 250 rpm)
- Perform “WRT DATA AFTR REPLC CPU” in WORK SUPPORT mode with CONSULT-III.
Is the return volume at the fuel injectors more than 20 ml per fuel injector for the starting phase?
NOTE:
 Do not repeat this procedure more than 3 times and wait 30 seconds between each 15 second cranking
engine.
 Then wait 30 minutes before cranking the engine for 3 15 second cycles.
 Follow this instruction so that the starter does not get damaged.
Does the flow measure more than 20ml?
Yes >> Replace malfunctioning fuel injector.
No >> GO TO 3.
3.CHECK FUEL INJECTOR-II
1. Turn ignition switch OFF.
2. Reconnect return pipes.
3. Start Engine.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Check “RAIL PRESSURE” and “RAIL PRES SET” indication.
6. Does “RAIL PRESSURE” follow “RAIL PRES SET” during the 3 second cranking engine?
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK GLOW PLUG
1. Turn ignition switch OFF.
2. Remove the glow plugs and check for moisture.
3. If the glow plugs are wet with fuel, it is possible that the fuel injector is leaking.
Are the glow plugs wet with fuel?
Yes >> Replace malfunction fuel injector.
No >> Replace high pressure supply pump.
5.INSPECTION END
Fuel injector system OK.
>>INSPECTION END
BASIC INSPECTION : Special Repair Requirement (TEST 7: Incorrect Fuel Injection
Quantity)
INFOID:0000000001162521
NOTE:
CONDITIONS PRIOR TO TEST
- The entire low pressure system must be in good condition.
- Check the sealing of the high pressure pipes and unions.
- Test 3 High pressure supply pump (pressure control valve) check is OK
- Test 4 High pressure supply pump (volumetric control valve) check is OK
- Test 5 Rail high pressure regulation circuit check is OK.

EC-1054
< BASIC INSPECTION >[K9K]
INSPECTION AND ADJUSTMENT
- All the electrical loads are switched off.
- Air conditioning is switched off.
CAUSE
- The engine runs poorly at idle speed, possibly emits white smoke.
1.CHECK FUEL INJECTOR
Refer to EC-1141, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning fuel injector.
2.CHECK ENGINE COOLANT TEMPERATURE AND FUEL TEMPERATURE
1. Start engine let it idle speed.
2. Select “DATA MONITOR” mode with CONSULT-III.
3. Check “FUEL TEMP” indication is above 60°C (140°F)
4. Check “F/FLOW CORR CYL1“, “F/FLOW CORR CYL2”, “F/FLOW CORR CYL3”, “F/FLOW CORR CYL4”
indication.
Are the reference value 0.3 - 1.9?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK INTERNAL FUEL TRANSFER PUMP
1. Turn ignition switch OFF.
2. Disconnect the return system connections at the fuel injectors and close off the return pipes so they are
leak-tight. While the engine is idling, check the return flow rate at the fuel injector. After 5 minutes the
return volume must be between 16 - 24 ml per fuel injector.
Is there more than 24 ml or less than 16 ml of return for each fuel injector?
Yes >> Replace malfunctioning fuel injector.
No >> INSPECTION END
4.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-267, "
Inspection".
>> INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000001162522
When replacing ECM, this procedure must be performed.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000001162523
1.PRECONDITIONING
 Connect a CONSULT-III
 Connect a battery charger
 Electric load switch is OFF
 Wait for the engine to cool [engine coolant temperature < 60°C (140°F and air temperature < 50°C (122°F)].
NOTE:
While the ECM is being programmed the cooling fan motors are triggered automatically.
>> GO TO 2.
2.SAVE ECM DATA
Turn ignition switch ON.
Perform “SAVE DATA FOR CPU REPLC” in WORK SUPPORT mode with CONSULT-III.

ENGINE CONTROL SYSTEM
EC-1057
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FUNCTION DIAGNOSIS
ENGINE CONTROL SYSTEM
System DiagramINFOID:0000000001162526
1. Mass air flow sensor 2. Intake air temperature sensor 3. Turbocharger boost sensor
4. Throttle position sensor 5. EGR volume control valve control
position sensor 6. Turbocharger boost control solenoid
valve
7. High pressure supply pump (volu-
metric control valve)8. High pressure supply pump (pres-
sure control valve)9. Fuel rail pressure sensor
10. Fuel pump temperature sensor 11. Glow plug 12. Engine coolant temperature sensor
13. Crankshaft position sensor 14. Camshaft position sensor 15. Barometric pressure sensor
16. Refrigerant pressure sensor 17. Accelerator pedal position sensor 18. ASCD clutch switch
19. Brake switch 20. CAN communication 21. Glow plug
22. Fuel tank 23. Fuel pump 24. Fuel filter
25. High pressure supply pump 26. High pressure supply pump (internal
transfer pump)27. High pressure supply pump (volu-
metric control valve)
28. High pressure supply pump (high
pressure pump)29. High pressure supply pump (pres-
sure control valve)30. Mass air flow sensor (with intake air
temperature sensor)
31. Compressor 32. Charge air cooler 33. Electric throttle control actuator
JMBIA0418ZZ

EC-1058
< FUNCTION DIAGNOSIS >[K9K]
ENGINE CONTROL SYSTEM
System Description
INFOID:0000000001162527
ECM performs various controls such as fuel injection control and furl pressure control.
Component Parts LocationINFOID:0000000001162528
34. ECM 35. EGR volume control valve 36. Fuel rail
37. Fuel injector 38. EGR cooler
1. Priming pump 2. Fuel pump 3. Glow plug
4. Fuel rail 5. Turbocharger boost control solenoid
valve6. Turbocharger boost sensor
7. Engine coolant temperature sensor 8. Crankshaft position sensor 9. Glow relay
10. ECM 11. Mass air flow sensor 12. Electric throttle control actuator
13. Camshaft position sensor 14. EGR volume control valve 15. Fuel injector
ALBIA0296ZZ

EC-1060
< FUNCTION DIAGNOSIS >[K9K]
ENGINE CONTROL SYSTEM
1. Turbocharger boost control solenoid
valve2. Fuel pump 3. Turbocharger boost sensor
4. Refrigerant pressure sensor 5. EGR volume control valve 6. Engine oil filler cap
7. Accelerator pedal position sensor 8. Accelerator pedal
: Vehicle front
ALBIA0301ZZ

ENGINE CONTROL SYSTEM
EC-1061
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1. Fuel rail pressure sensor 2. Glow relay 3. Glow plug
4. Priming pump 5. Electronic throttle control actuator 6. Turbocharger boost control solenoid
valve
: Vehicle front
ALBIA0303ZZ