2007 NISSAN TIIDA fuel pressure

P0087 FUEL PUMP
EC-1121
< COMPONENT DIAGNOSIS >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
NG >> Replace or replace. Then GO TO 7.
5.CHECK RAIL HIGH PRESSURE REGULATION
Refer to EC-1048, "
BASIC INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regula-
tion Check)".
Is the inspection result normal?
OK >> GO TO 6.
NG >> Replace or replace. Then GO TO 7.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> INSPECTIO END.
NO >> Repair or replace. Then GO TO 7.
7.CLEAR PRESSURE REGULATION
Perform “PRESS REG ADAPTIVE” in WORK SUPPORT mode with CONSULT-III.
>>INSPECTION END.

EC-1122
< COMPONENT DIAGNOSIS >[K9K]
P0090 FUEL PUMP
P0090 FUEL PUMP
DTC LogicINFOID:0000000001162566
DTC DETECTION LOGIC
NOTE:
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC becomes present after the engine is started.
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162567
1.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect high pressure supply pump (pressure control valve) harness connector.
3. Turn ignition switch ON.
4. Check the voltage between high pressure supply pump (pressure control valve) harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
 IPDM E/R
 Harness for open or short between IPDM E/R and high pressure supply pump (pressure control valve)
 Harness for open or short between ECM and high pressure supply pump (pressure control valve)
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between high pressure supply pump (pressure control valve) harness connector and
ECM harness connector.
4. Also check harness for short to ground and short to power.
DTC No. Trouble diagnosis name Possible cause
P0090HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
CIRCUIT
 CO: Open circuit
 CO.0: Short circuit to ground
 CC.1: Short circuit to +12V
 1.DEF: Parameter at maximum level  Harness or connectors
[High pressure supply pump (pressure
control valve) circuit is open or shorted.]
 High pressure supply pump (pressure
control valve)
High pressure supply pump
(Pressure control valve)
Ground Voltage
Connector Terminal
F53 3 Ground Battery voltage
High pressure supply pump
(Pressure control valve)ECM
Continuity
Connector Terminal Connector Terminal
F53 4 F11 49 Existed

P0090 FUEL PUMP
EC-1123
< COMPONENT DIAGNOSIS >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) CHECK
Refer to EC-1123, "
Component Inspection".
Is the inspection result normal?
Yes >> GO TO 5.
No >> Replace high pressure supply pump.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTIO END
Component InspectionINFOID:0000000001162568
1.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
1. Turn ignition switch OFF.
2. Disconnect high pressure supply pump (pressure control valve) harness connector.
3. Check resistance between high pressure supply pump (pressure control valve) terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace high pressure supply pump.
Terminals Resistance
3 and 4 1.5 - 15Ω

EC-1138
< COMPONENT DIAGNOSIS >[K9K]
P0190 FRP SENSOR
P0190 FRP SENSOR
DescriptionINFOID:0000000001162592
The fuel rail pressure (FRP) sensor is placed to the fuel rail. It measures the fuel pressure in the fuel rail. The
sensor sends voltage signal to the ECM. As the pressure increases, the voltage rises.The ECM controls the
fuel pressure in the fuel rail. The ECM uses the signal from fuel rail pressure sensor as a feedback signal.
DTC LogicINFOID:0000000001162593
DTC DETECTION LOGIC
NOTE:
If DTC P0190 is displayed with DTC P0641, first perform trouble diagnosis for DTC P0641. Refer to
EC-1180, "
DTC Logic".
Conditions for applying the diagnostic procedure to the stored DTCs:
- The DTC is declared present after the ignition is switched on when the engine is running outside idle speed.
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162594
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK FUEL RAIL PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect fuel rail pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between fuel rail pressure sensor connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.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.
DTC No. Trouble diagnosis name Possible cause
P0190FUEL RAIL PRESSURE SENSOR CIRCUIT
 CO.0: Short circuit to ground
 CO.1: Open circuit or short circuit to +12V
 1.DEF: malfunctioning sensor
 2.DEF: Signal outside upper level
 3.DEF: Micro-breaks Harness or connectors
(Fuel rail pressure sensor circuit is open
or shorted.)
 Fuel rail pressure sensor
Fuel rail pressure sensor
Ground Voltage
Connector Terminal
F51 3 Ground Approx. 5V
Fuel rail pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
F51 2 F10 15 Existed

P0190 FRP SENSOR
EC-1139
< COMPONENT DIAGNOSIS >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.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 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK FUEL RAIL PRESSURE SENSOR
Refer to EC-1139, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace fuel rail pressure sensor.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001162595
1.CHECK FUEL RAIL PRESSURE SENSOR
1. Turn ignition switch OFF and wait at least 1 minutes.
2. Reconnect harness connector disconnected.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Check that the “RAIL PRESSURE” indication.
If the value is lower than 30 bar?
YES >>INSPECTION END.
NO >> Replace fuel rail pressure sensor.
Fuel rail pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
F51 1 F10 19 Existed

EC-1180
< COMPONENT DIAGNOSIS >[K9K]
P0641 SENSOR POWER SUPPLY
P0641 SENSOR POWER SUPPLY
DTC LogicINFOID:0000000001162649
DTC DETECTION LOGIC
NOTE:
If DTC P0641 is displayed with DTC P0100, P0101, P0110, P0190, P0225, P0409, P0530, P2120, first
perform trouble diagnosis for DTC P0641.
-Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on.
-If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162650
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
DTC No. Trouble diagnosis name Possible cause
P0641SENSOR POWER SUPPLY CIRCUIT
 1.DEF: Signal outside lower level
 2.DEF: Signal outside upper level Harness or connectors
(The APP sensor 2 power supply circuit is shorted.)
(Fuel rail pressure sensor circuit is shorted.)
(EGR volume control valve control position sensor circuit
is shorted.)
(Mass air flow sensor circuit is shorted.)
(Refrigerant pressure sensor circuit is shorted.)
 Accelerator pedal position sensor
(APP sensor 2)
 Fuel rail pressure sensor
 EGR volume control valve control position sensor
 Mass air flow sensor
 Refrigerant pressure sensor
APP sensor
Ground Voltage
Connector Terminal
E12 (LHD models)
M204 (RHD models)5 Ground Approx. 5V

P0641 SENSOR POWER SUPPLY
EC-1181
< COMPONENT DIAGNOSIS >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK SENSOR GROUND CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors.
5.CHECK COMPONENTS
Check the following.
 Refrigerant pressure sensor (Refer to EC-1166, "
Diagnosis Procedure".)
 EGR volume control valve (EGR volume control valve control position sensor) (Refer to EC-1158, "
Diagno-
sis Procedure".)
 Fuel rail pressure sensor (Refer to EC-1139, "
Component Inspection".)
 Mass air flow sensor (Refer to EC-1125, "
Component Inspection".)
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace malfunctioning component.
6.CHECK APP SENSOR
Refer to EC-1146, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace APP sensor.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
ECM Sensor
Connector Terminal Name Connector Terminal
E16 118 APP sensorE12 (LHD models)
M204 (RHD models)5
F1189 Refrigerant pressure sensor E17 3
85EGR volume control valve (EGR volume control valve con-
trol position sensor)F52 1
F1020 Fuel rail pressure sensor F51 3
28 Mass air flow sensor F31 5
ECM Sensor
Connector Terminal Name Connector Terminal
E16 120 APP sensorE12 (LHD models)
M204 (RHD models)1
F1174 Refrigerant pressure sensor E17 1
82EGR volume control valve (EGR volume control valve control
position sensor)F52 3
F1015 Fuel rail pressure sensor F51 2
30 Mass air flow sensor F31 2

EC-1186
< COMPONENT DIAGNOSIS >[K9K]
P1089 FUEL PUMP
P1089 FUEL PUMP
DTC LogicINFOID:0000000001162661
DTC DETECTION LOGIC
NOTE:
NOTE:
-If DTC P1089 is displayed with DTC P0180, first perform trouble diagnosis for DTC P0180. Refer to
EC-1136, "
DTC Logic".
-If DTC P1089 is displayed with DTC P0190, first perform trouble diagnosis for DTC P0190. Refer to
EC-1138, "
DTC Logic".
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC appears when the engine is running.
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162662
1.CHECK LOW PRESSURE FUEL SUPPLY SYSTEM
Refer to EC-1043, "
BASIC INSPECTION : Special Repair Requirement (TEST 1: Low Pressure Fuel Supply
System Check)".
Is the inspection result normal?
OK >> GO TO 2.
NG >> Replace or replace. Then GO TO 9.
2.CHECK INTERNAL FUEL TRANSFER PUMP
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer Pump
Check)".
Is the inspection result normal?
OK >> GO TO 3.
NG >> Replace or replace. Then GO TO 9.
3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump
(Pressure Control Valve) Check]".
Is the inspection result normal?
OK >> GO TO 4.
NG >> Replace or replace. Then GO TO 9.
DTC No. Trouble diagnosis name Possible cause
P1089FUEL RAIL PRESSURE REGULATION FUNCTION
 1.DEF: High pressure supply pump (Pressure control valve) closed
 2.DEF: High pressure supply pump (Pressure control valve) open
 3.DEF: High pressure supply pump (Volumetric control valve) open
 4.DEF: High pressure supply pump (Volumetric control valve) closed
 5.DEF: Component malfunction: High pressure supply pump (Pressure
control valve or Volumetric control valve)
 6.DEF: High pressure supply pump (Pressure control valve) oscillation
 7.DEF: High pressure supply pump (Volumetric control valve)) oscilla-
tion Harness or connectors
[High pressure supply pump (volumetric
control valve) circuit is open or shorted.]
[High pressure supply pump (Pressure
control valve) circuit is open or shorted.]
(Fuel rail pressure sensor circuit is open or
shorted.)
 High pressure supply pump
 High pressure supply pump (Pressure
control valve)
 High pressure supply pump (Volumetric
control valve)
 Fuel line
 Fuel rail
 Fuel injector
 Fuel rail pressure sensor
 Fuel rail pressure relief valve
 Air mixture with fuel
 Lack of fuel