2004 NISSAN TERRANO fuel pump

NUMERICAL INDEX FOR DTC
X: Applicable Ð: Not applicable
DTCItems
(CONSULT-II screen terms) MI (MIL) illumination Reference page
0102 MASS AIR FLOW SEN Ð EC-88
0103 COOLANT TEMP SEN Ð EC-95
0104 VEHICLE SPEED SEN Ð EC-99
0203*1 ACCEL POS SW (F/C)*1 Ð EC-104 0208 OVER HEAT Ð EC-109
0301 ECM 2 X EC-121
0402 P9×FUEL TEMP SEN ÐEC-123
0403 ACCEL POS SENSOR Ð*1 or X*2EC-130
0406 INT/AIR VOLUME ÐEC-150
0407 CRANK POS SEN (TDC) XEC-152
0504*1 A/T COMM LINE ÐEC-160
0505 NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ÐÐ
0701 P1×CAM POS SEN XEC-166
0702 P2×TDC PULSE SIG ÐEC-173
0703 P3×PUMP COMM LINE XEC-180
0704 P4×SPILL/V CIRC XEC-187
0705 P5×PUMP C/MODULE XEC-194
0706 P6×SPILL VALVE XEC-187
0707 P7×F/INJ TIMG FB XEC-197
0802 ECM 10 ÐEC-205
0804 ECM 11 ÐEC-207
0807 ECM 14 Ð*1 or X*2EC-209
0902 ECM RLY ÐEC-214
0903 ECM 15 XEC-218
0905 TURBO PRESSURE ÐEC-220
1003 EGR VOLUME CONT/V Ð EC-227
1004 FUEL CUT SYSTEM1 X EC-237
1401 - 1408 NATS MALFUNCTION Ð EL section
*1: For A/T models
*2: For M/T models
TROUBLE DIAGNOSIS Ð INDEXZD30DDTi
Alphabetical & Numerical Index for DTC
(Cont'd)
EC-8
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IDo not disconnect pump harness connector with engine
running.
I Do not disassemble electronic fuel injection pump.
If NG, take proper action.
I Do not disassemble injection nozzle.
If NG, replace injection nozzle.
I Even a slight leak in the air intake system can cause seri-
ous problems.
I Do not shock or jar the crankshaft position sensor (TDC).
I Do not depress accelerator pedal when starting.
I Immediately after starting, do not rev up engine unneces-
sarily.
I Do not rev up engine just prior to shutdown.
I When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on its installation loca-
tion.
1) Keep the antenna as far as possible away from the ECM.
2) Keep the antenna feeder line more than 20 cm (7.9 in) away from the harness of electronic controls.
Do not let them run parallel for a long distance.
3) Adjust the antenna and feeder line so that the standing- wave ratio can be kept smaller.
4) Be sure to ground the radio to vehicle body.
SEF437Y
SEF709Y
SEF708Y
PRECAUTIONSZD30DDTi
Precautions (Cont'd)
EC-11
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System Chart
Input (Sensor)ECM FunctionOutput (Actuator)
I Electronic control fuel injection pump
I Crankshaft position sensor (TDC)
I Engine coolant temperature sensor
I Accelerator position sensor
I Accelerator position switch
I Accelerator switch (F/C)
I Park/Neutral position (PNP) switch
I Ignition switch
I Battery voltage
I Vehicle speed sensor
I Air conditioner switch
I Mass air flow sensor
I Stop lamp switch
I Heat up switch
I Charge air pressure sensor*1 Fuel injection control
Electronic control fuel injection pump
Fuel injection timing control Electronic control fuel injection pump
Fuel cut control Electronic control fuel injection pump
Glow control system Glow relay & glow lamp
On board diagnostic system MI (On the instrument panel)
EGR volume control EGR volume control valve
Cooling fan control Cooling fan relay
Air conditioning cut control Air conditioner relay
Variable nozzle turbocharger control Variable nozzle turbocharger control sole- noid valve
Swirl control valve control Swirl control valve control solenoid valve
Intake air control valve control Intake air control valve control solenoid
valve
*1: This sensor is not used to control the engine system under normal conditions.
ENGINE AND EMISSION CONTROL OVERALL SYSTEMZD30DDTi
EC-19
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Fuel Injection Control System
DESCRIPTION
System description
Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is compensated to improve engine performance.
Pulse signals are exchanged between ECM and electronic control fuel injection pump (control unit is built-in).
The fuel injection pump control unit performs duty control on the spill valve (built into the fuel injection pump)
according to the input signals to compensate the amount of fuel injected to the preset value.
Start control
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection con-
trol (start control)Electronic control fuel injec-
tion pump
Crankshaft position sensor (TDC)
Engine speed
Ignition switch Start signal
When the ECM receives a start signal from the ignition switch, the
ECM adapts the fuel injection system for the start control. The
amount of fuel injected at engine starting is a preset program value
in the ECM. The program is determined by the engine speed and
engine coolant temperature.
For better startability under cool engine conditions, the lower the
coolant temperature becomes, the greater the amount of fuel
injected. The ECM ends the start control when the engine speed
reaches the specific value, and shifts the control to the normal or
idle control.
Idle control
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection con-
trol (Idle control)Electronic control fuel injec-
tion pump
Crankshaft position sensor (TDC)
Engine speed
Park/Neutral position (PNP) switch Gear position
Battery Battery voltage
Accelerator position switch Idle position
Vehicle speed sensor Vehicle speed
Air conditioner switch Air conditioner signal
Heat up switch Heat up switch signal
When the ECM determines that the engine speed is at idle, the fuel injection system is adapted for the idle
control. The ECM regulates the amount of fuel injected corresponding to changes in load applied to the engine
to keep engine speed constant. The ECM also provides the system with a fast idle control in response to the
engine coolant temperature and heat up switch signal.
SEF648S
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTIONZD30DDTi
EC-20
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Normal control
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Crankshaft position sensor (TDC) Engine speed
Fuel injection con-
trol (Normal con-
trol)Electronic control fuel injec-
tion pump
Accelerator position sensor
Accelerator position
Vehicle speed sensor Vehicle speed
The amount of fuel injected under normal driving conditions is
determined according to sensor signals. The crankshaft position
sensor (TDC) detects engine speed and the accelerator position
sensor detects accelerator position. These sensors send signals to
the ECM.
The fuel injection data, predetermined by correlation between vari-
ous engine speeds and accelerator positions, are stored in the
ECM memory, forming a map. The ECM determines the optimal
amount of fuel to be injected using the sensor signals in compari-
son with the map.
Maximum amount control
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Mass air flow sensor Amount of intake air
Fuel injection con-
trol (Maximum
amount control)Electronic control fuel injec-
tion pump
Engine coolant temperature sensor Engine coolant temperature
Crankshaft position sensor (TDC) Engine speed
Accelerator position sensor Accelerator position
The maximum injection amount is controlled to an optimum by the engine speed, intake air amount, engine
coolant temperature, and accelerator opening in accordance with the driving conditions.
This prevents the oversupply of the injection amount caused by decreased air density at a high altitude or
during a system failure.
Deceleration control
Input/output signal chart
Sensor
Input Signal to ECM ECM Function Actuator
Accelerator switch (F/C) Accelerator positionFuel injection con-
trol (Deceleration
control)Electronic control fuel injec-
tion pump
Crankshaft position sensor (TDC) Engine speed
The ECM sends a fuel cut signal to the electronic control fuel injection pump during deceleration for better
fuel efficiency. The ECM determines the time of deceleration according to signals from the accelerator switch
(F/C) and crankshaft position sensor (TDC).
SEF649S
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTIONZD30DDTi
Fuel Injection Control System (Cont'd)
EC-21
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Fuel Injection Timing Control System
DESCRIPTION
The target fuel injection timing in accordance with the engine speed and the fuel injection amount are recorded
as a map in the ECM beforehand. The ECM and the injection pump control unit exchange signals and per-
form feedback control for optimum injection timing in accordance with the map.
Air Conditioning Cut Control
DESCRIPTION
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Air conditioner switch Air conditioner ªONº signal
Air conditioner cut
controlAir conditioner relay
Accelerator position sensor
Accelerator valve opening
angle
Vehicle speed sensor Vehicle speed
Engine coolant temperature sensor Engine coolant temperature
System description
This system improves acceleration when the air conditioner is used.
When the accelerator pedal is fully depressed, the air conditioner is turned off for a few seconds.
When engine coolant temperature becomes excessively high, the air conditioner is turned off. This continues
until the engine coolant temperature returns to normal.
Fuel Cut Control (at no load & high engine
speed)
DESCRIPTION
Input/output signal chart
SensorInput Signal to ECM ECM Function Actuator
Vehicle speed sensor Vehicle speed
Fuel cut controlElectronic control fuel injec-
tion pump
Park/Neutral position (PNP) switch
Neutral position
Accelerator position switch or Accelerator
switch (F/C) Accelerator position
Engine coolant temperature sensor Engine coolant temperature
Crankshaft position sensor (TDC) Engine speed
If the engine speed is above 2,700 rpm with no load (for example, in neutral and engine speed over 2,700
rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed.
Fuel cut will operate until the engine speed reaches 1,500 rpm, then fuel cut is cancelled.
NOTE:
This function is different from deceleration control listed under ªFuel Injection Control Systemº, EC-20.
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTIONZD30DDTi
EC-22
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Inspection for spill tube airtightness
Before the rocker cover is installed, perform the inspection as fol-
lows.
1. Connect the handy vacuum pump to the spill hose.
2. Check that the airtightness is maintained after the negativepressure shown below is applied.Standard: þ53.3 to þ66.7 kPa (þ533 to þ667 mbar, þ400 to
þ500 mmHg, þ15.75 to þ19.69 inHg)
Air bleeding of fuel piping
After the repair, bleed air in the piping by pumping the priming
pump up and down until it becomes heavy.
Injection pressure test
1. Install injection nozzle assembly to injection nozzle tester andbleed air from flare nut.
2. Pump the tester handle slowly (one time per second) and watch the pressure gauge.
3. Read the pressure gauge when the injection pressure just starts dropping.Initial injection pressure: Used19,026 kPa (190.3 bar, 194 kg/cm
2, 2,759 psi)
New 19,516 - 20,497 kPa (195.2 - 205.0 bar, 199 - 209
kg/cm
2, 2,830 - 2,972 psi)
Limit 16,182 kPa (161.8 bar, 165 kg/cm
2, 2,346 psi)
I The injection nozzle assembly has a 2-stage pressure injection
function. However, the judgement should be made at the first
stage of the valve opening pressure.
JEF250Z
MEC991D
JEF348Y
BASIC SERVICE PROCEDUREZD30DDTi
Injection Tube and Injection Nozzle (Cont'd)
EC-26
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Spray pattern test
1. Check spray pattern by pumping tester handle one full strokeper second.NG spray pattern: Does not inject straight and strong (B in the fig-
ure).
Fuel drips (C in the figure).
Does not inject evenly (D in the figure).
2. If the spray pattern is not correct, replace injection nozzle assembly.
Electronic Control Fuel Injection Pump
REMOVAL AND INSTALLATION
CAUTION:
When removing or installing the timing chain as incidental work of the fuel injection pump removal/
installation, always secure the internal mechanism of the idler gear with bolts before removing or
installing the fuel injection pump sprocket. Do not refer to the procedure for ªTIMING CHAINº in EM
section based on No. 1 cylinder compression top dead center. (Unless otherwise specified.)
JEF349Y
JEF259Z
BASIC SERVICE PROCEDUREZD30DDTi
Injection Tube and Injection Nozzle (Cont'd)
EC-27
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