1998 NISSAN PICK-UP fuel pump

General Specifications
PRESSURE REGULATOR
Fuel pressure
kPa (bar, kg/cm2, psi)
At idleApproximately
235 (2.35, 2.4, 34)
A few seconds after ignition
switch is turned OFF to ONApproximately
294 (2.94, 3.0, 43)
Inspection and Adjustment
Idle speed*1 rpm Base idle speed*3 750 25
No-load*2
(in ``N'' position)Target idle speed 800 50
Air conditioner: ON
(in ``N'' position)900 or more
Ignition timing 10É 2É BTDC
Throttle position touch
speed rpm1,000 150
*1: Feedback controlled and needs no adjustments
*2: Under the following conditions:
lAir conditioner switch: OFFlSteering wheel: Kept in straight-ahead positionlElectrical load: OFF (Lights, heater fan & rear window defog-
ger)
*3: Throttle position sensor connector is disconnected.
IGNITION COIL
Primary voltage V Battery voltage (11 - 14)
Primary resistance
[at 25ÉC (77ÉF)]WLess than 1.0
Secondary resistance
[at 25ÉC (77ÉF)] kW7-13
MASS AIR FLOW SENSOR
Supply voltage V Battery voltage (11 - 14)
Output voltage at idle V1.3 - 1.7 at idle*
1.7 - 2.1 at 2,500 rpm*
*: Engine is warmed up sufficiently and running under no-load.
ENGINE COOLANT TEMPERATURE
SENSOR
Temperature ÉC (ÉF) Resistance
20 (68) 2.1 - 2.9 kW
50 (122) 0.68 - 1.00 kW
90 (194) 0.236 - 0.260 kW
FUEL PUMP
Resistance [at 25ÉC (77ÉF)]W0.2 - 5.0
IACV-AAC VALVE
Resistance [at 25ÉC (77ÉF)]WApproximately 10.0
INJECTOR
Resistance [at 25ÉC (77ÉF)]W10-14
RESISTOR
Resistance [at 25ÉC (77ÉF)] kWApproximately 2.2
THROTTLE POSITION SENSOR
Throttle valve conditions Resistance [at 25ÉC (77ÉF)]
Completely closed Approximately 0.6 kW
Partially open 0.6 - 4.0 kW
Completely open Approximately 4.0 kW
HEATED OXYGEN SENSOR HEATER
Resistance [at 25ÉC (77ÉF)]W2.3 - 4.3
INTAKE AIR TEMPERATURE SENSOR
Temperature ÉC (ÉF) Resistance
20 (68) 2.1 - 2.9 kW
80 (176) 0.27 - 0.38 kW
SERVICE DATA AND SPECIFICATIONS (SDS)KA
EC-232

Injection Pump Calibration Standard
Injection pump assembly No.104780-4951/
104780-4961
Part No.16700 3S300/
106700 3S301Pump rotation: ClockwiseÐviewed from drive side
1. Test conditions
1 - 1 Nozzle: 105780-0060 (NP-DN0SD1510) 1 - 4 Injection pipe: 2 dia. x 6 dia. x 450 mm (0.08 dia. x 0.24 dia. x 17.72 in)
1 - 2 Nozzle holder: 105780-2150 1 - 5 Fuel oil temperature: 45
+5
0ÉC (113+9
0ÉF)
1 - 3 Nozzle opening pressure: 13,000+300
0kPa
(130.0+3.0
0bar,
133+3
0kg/cm2,
1,891+43
0psi)1 - 6 Supply pump pressure: 20 kPa (0.20 bar, 0.2 kg/cm
2, 2.8 psi)
2. SettingPump speed
rpmSettingsCharge air press
kPa
(mbar, mmHg, inHg)Difference in delivery
m!(Imp fl oz)
2 - 1 Timing device travel 1,100ON 3.4 - 4.2 mm (0.134 - 0.165 in)
OFF 1.8 - 2.2 mm (0.071 - 0.087 in)
ÐÐ
2 - 2 Supply pump pressure 1,100ON 471 - 549 kPa
(4.71 - 5.49 bar, 4.8 - 5.6 kg/cm
2,
68 - 80 psi)
OFF 402 - 461 kPa
(4.02 - 4.61 bar, 4.1 - 4.7 kg/cm
2,
58 - 67 psi)Ð
2 - 3 Full-load delivery 1,10046.9 - 47.9 m!
(1.65 - 1.69 Imp fl oz)/1,000 st3.5 (0.12)
2 - 4 Idle speed regulation 3755.1 - 9.1 m!
(0.18 - 0.32 Imp fl oz)/1,000 st2.0 (0.07)
2 - 5 Start 10045.0 - 80.0 m!
(1.58 - 2.82 Imp fl oz)/1,000 stÐ
2 - 6 Full-load speed regulation 2,50012.9 - 16.9 m!
(0.45 - 0.59 Imp fl oz)/1,000 stÐ
2 - 7 Load timer adjustment 1,100 0.1 - 0.5 mm (0.004 - 0.020 in) Ð
3. Test specifications Solenoid timer ON OFF
3 - 1 Timing deviceN = rpm
mm (in)1,100
3.3 - 4.3
(0.130 - 0.169)2,150
7.3 - 8.2
(0.287 - 0.323)700
Below 0.8
(0.031)1,100
1.7 - 2.3
(0.067 - 0.091)2,150
6.3 - 7.5
(0.248 - 0.295)
3 - 2 Supply pumpN = rpm
kPa (bar,
kg/cm
2, psi)1,100
392 - 471
(3.92 - 4.71,
4.0 - 4.8,
57 - 68)2,150
618 - 696
(6.18 - 6.96,
6.3 - 7.1,
90 - 101)
3-3Overflow deliv-
eryN = rpm
m!(Imp fl oz)/
min.1,100
310 - 570
(10.9 - 20.1)Ð
3 - 4 Fuel injection quantities
Speed control
lever positionPump speed
rpmFuel delivery
m!(Imp fl oz)/
1,000 stCharge air press
kPa (mbar,
mmHg, inHg)
Max. speed1,10046.4 - 48.4
(1.63 - 1.70)
Ð 50041.3 - 47.3
(1.45 - 1.66)*
2,15041.2 - 48.2
(1.45 - 1.70)*
2,50011.9 - 17.9
(0.42 - 0.63)
2,700 Below 5.0 (0.18)
Switch OFF
Magnet valve375 0 (0) Ð
Idling 3754.6 - 9.6
(0.16 - 0.34)Ð
3 - 5 SolenoidMax. cut-in voltage: 8V
Test voltage: 12 - 14V
ON: Solenoid timer is ON. *: Reference value
OFF: Solenoid timer is OFF.
If there is no designation in the specifications for the Solenoid Timer's ON-OFF position, then the position should be regarded as OFF.
4. Dimensions
K 3.2 - 3.4 mm (0.126 - 0.134 in)
KF 5.7 - 5.9 mm (0.224 - 0.232 in)
MS 0.9 - 1.1 mm (0.035 - 0.043 in)
BCS Ð
Pre-stroke 0.08 - 0.12 mm (0.0031 - 0.0047 in)
Control lever angle
a51.5 - 59.5 degree
b31.0 - 41.0 degree
gÐ
SERVICE DATA AND SPECIFICATIONS (SDS)TD
EC-234

Control lever angle measurement position
Measure the control lever angles (a,b).
Load timer adjustment
1. Fix the control lever in the position satisfying the following conditions.
Pump speed: 1,100 rpm
Fuel injection quantity: 33.0 0.5 m!(1.16 0.02 Imp fl oz)/1,000 st
2. With the control lever positioned as described in 1. above, adjust the governor sleeve so that the timer
stroke conforms to the specified values (item2-7).
Control lever position Specified values
Pump speed
rpmFuel injection quantity
m!(Imp fl oz)/1,000 stBoost pressure
kPa (mbar, mmHg, inHg)Timer stroke
mm (in)Timer stroke
reduction value
mm (in)
1,10033.0 1.0
(1.16 0.04)Ð 1.7 (0.067)0.3 0.3
(0.012 0.012)
1,10020.0 2.5
(0.70 0.09)*Ð 1.1 (0.043)*0.9 0.4
(0.035 0.016)*
*: Reference value
Potentiometer adjustment
1. Hold the control lever in the idling position.
2. Adjust the potentiometer so that the output voltage is 5.64 0.03V. Then fix the potentiometer.
3. After adjusting the potentiometer, remove the dummy bolt and then confirm the potentiometer's output
voltage specifications below.
Pump speed
rpmFuel injection q'ty
m!(Imp fl oz)/1,000 stOutput voltage
VControl lever angle Remarks
1,075 23.3 1.0 (0.82 0.04) 5.64 0.03 Ð Adjusting point
Ð 1.34 (0.05)* Ð Idle Check point
Ð Above 9.7 Ð Full Check point
*: Reference value(Input voltage: 10V)
DEF011
SERVICE DATA AND SPECIFICATIONS (SDS)TD
Injection Pump Calibration Standard (Cont'd)
EC-235

EARTH CONNECT TO CONN. NO. CELL CODE
M1/M54 ACCESSORY RELAY (In fuse block) M14 EL-POWER
AIR BAG DIAGNOSIS SENSOR UNIT (4WD
models)M110 RS-SRS
ASHTRAY ILLUMINATION M34 EL-ILL
BLOWER RELAY (In fuse block) M14 EL-POWER
CHECK CONNECTOR (NA engine) M12 EC-CHOKE
CHECK CONNECTOR (Z engine) M13 EC-CHOKE
CIGARETTE LIGHTER SOCKET M37 EL-CIGAR
COMBINATION FLASHER UNIT M15 EL-TURN
DOOR LOCK TIMER M51 EL-D/LOCK
DOOR SWITCH DRIVER SIDE (For Europe) M118 EL-BUZZER EL-MULTI
ECM (ENGINE CONTROL MODULE) M66 EC-GLOW EC-PLA EC-EGRC/V
FAN SWITCH ILLUMINATION (Except for
Europe and Australia)M403 HA-HEATER HA-A/C,M EL-ILL
FAN SWITCH ILLUMINATION (For Europe and
Australia)M40 HA-HEATER HA-A/C,M EL-ILL
FAN SWITCH (Except for Europe and Australia) M404 EC-FIPOT HA-HEATER HA-A/C,M
FAN SWITCH (For Europe and Australia) M39 HA-HEATER HA-A/C,M
FRONT SEAT LH M119 EL-H/SEAT
FRONT SEAT RH M122 EL-H/SEAT
FRONT WIPER AMPLIFIER
(RHD models without KA engine and LHD mod-
els)M220 EL-WIPER
FRONT WIPER AND WASHER SWITCH M28 EL-WIPER
FRONT WIPER MOTOR
(RHD models without KA engine and LHD mod-
els)M221 EL-WIPER
FUEL FILTER SWITCH (LHD models with die-
sel engine)M259 EL-WARN EL-BUZZER
FUEL PUMP CONTROL MODULE M22 EC-FPCM
FUEL RETURN CONTROL SOLENOID VALVE
(LHD models with NA engine)M257 EC-F/RTN
GLOW CONTROL UNIT
(TD27 engine except for cold areas and QD
engine)M29 EC-GLOW EC-PLA
GLOW CONTROL UNIT (TD27 engine for cold
areas)M30 EC-GLOW EC-PLA
GLOW RELAY-1 (LHD models with diesel
engine except for Europe)M253 EC-GLOW
GLOW RELAY-2 (TD27 engine for cold areas) M256 EC-GLOW
HAZARD SWITCH M41 EL-TURN EL-ILL
HEADLAMP WASHER SWITCH M70 EL-ILL EL-HLC
HEATED SEAT SWITCH LH M602 EL-H/SEAT
HEATED SEAT SWITCH RH M603 EL-H/SEAT
IACV-FICD SOLENOID VALVE (KA engine) M203 EC-FICD HA-A/C,M
IGNITION RELAY (In fuse block) M14 EL-POWER
MULTI-REMOTE CONTROL RELAY-3 M706 EL-MULTI
MULTI-REMOTE CONTROL RELAY-4 M707 EL-MULTI
MULTI-REMOTE CONTROL UNIT M703 EL-MULTI
POWER WINDOW RELAY M9 EL-WINDOW
REAR WINDOW DEFOGGER SWITCH M42 EL-DEF
SEAT BELT SWITCH M109 EL-WARN
SPIRAL CABLE (2WD models with air bag) M26 RS-SRS
COMBINATION METER (4WD WARNING
LAMP)N6 EL-WARN
COMBINATION METER (ABS WARNING
LAMP)N6 BR-ABS EL-WARN
GROUND DISTRIBUTION
EL-14

EARTH CONNECT TO CONN. NO. CELL CODE
M1/M54 COMBINATION METER (AIR BAG WARNING
LAMP)N5 RS-SRS EL-WARN
COMBINATION METER (CLOCK ILLUMINA-
TION)N6 EL-ILL EL-CLOCK
COMBINATION METER (DIGITAL CLOCK) N6 EL-CLOCK
COMBINATION METER (FUEL GAUGE) N5 EL-METER
COMBINATION METER (HIGH BEAM INDICA-
TOR)N5 EL-H/LAMP EL-DTRL EL-DIMDIP
COMBINATION METER (METER ILLUMINA-
TION)N6 EL-ILL
COMBINATION METER (ODO/TRIP METER
ILLUMINATION)N6 EL-ILL
COMBINATION METER (REAR FOG LAMP
INDICATOR)N6 EL-R/FOG
COMBINATION METER (TURN LH INDICA-
TOR)N6 EL-TURN
COMBINATION METER (TURN RH INDICA-
TOR)N6 EL-TURN
COMBINATION METER (UNIFIED METER
CONTROL UNIT)N5 EC-VSS EC-GLOW EL-METER
COMBINATION METER (WATER TEMP.
GAUGE)N5 EL-METER
DOOR MIRROR REMOTE CONTROL SWITCH N3 EL-MIRROR
FRONT WIPER AMPLIFIER (RHD models with
KA engine)F20 EL-WIPER
FRONT WIPER MOTOR (RHD models with KA
engine)F21 EL-WIPER
HEADLAMP AIMING SWITCH N7 EL-H/AIM
INTERIOR LAMP (Single cab and King cab) R4 EL-INT/L
SPOT LAMP R3 EL-INT/L
FUEL TANK GAUGE UNIT (With electric fuel
pump)C3EC-FPCM EC-F/PUMP EL-METER
EL-WARN
FUEL TANK GAUGE UNIT (With mechanical
fuel pump)C4 EL-METER EL-WARN
LICENSE PLATE LAMP LH (With step bumper) T7 EL-TAIL/L
LICENSE PLATE LAMP LH (Without step
bumper)T6 EL-TAIL/L
LICENSE PLATE LAMP RH (With step bumper) T3 EL-TAIL/L
LICENSE PLATE LAMP RH (Without step
bumper)T5 EL-TAIL/L
REAR COMBINATION LAMP LH (BACK-UP)
(A-chassis models, and except for Europe,
Australia and China)T8 EL-BACK/L
REAR COMBINATION LAMP LH (BACK-UP)
(For Europe, Australia and China except
A-chassis models)T9 EL-BACK/L
REAR COMBINATION LAMP LH (REAR FOG)
(LHD models except A-chassis)T9 EL-R/FOG
REAR COMBINATION LAMP LH (TAIL AND
STOP) (A-chassis models, and except for
Europe, Australia and China)T8 EL-TAIL/L EL-STOP/L
REAR COMBINATION LAMP LH (TAIL AND
STOP) (For Europe, Australia and China except
A-chassis models)T9 EL-TAIL/L EL-STOP/L
REAR COMBINATION LAMP LH (TURN SIG-
NAL) (A-chassis models, and except for
Europe, Australia and China)T8 EL-TURN
REAR COMBINATION LAMP LH (TURN SIG-
NAL) (For Europe, Australia and China except
A-chassis models)T9 EL-TURN
REAR COMBINATION LAMP RH (BACK-UP)
(A-chassis models, and except for Europe, Aus-
tralia and China)T1 EL-BACK/L
REAR COMBINATION LAMP RH (BACK-UP)
(For Europe, Australia and China except
A-chassis models)T2 EL-BACK/L
GROUND DISTRIBUTION
EL-15

Electrical Components Inspection
METER/GAUGE RESISTANCE CHECK
1. Disconnect FPC connector. Refer to EL-97.
2. Check resistance between installation screws of meter/
gauge.
Screws
Resistance
W
Tachometer Fuel/Temp. gauge
A - C A - C Approx. 70 - Approx. 140
B - D B - C Approx. 90 - Approx. 170
FUEL TANK GAUGE UNIT CHECK (With electric fuel
pump)
lFor removal, refer to FE section.
Check the resistance between terminals
V1andV4.
Ohmmeter Float position mm (in)
Resistance
value
(W) (+) (þ)60!(13-1/4
Imp gal) tank80!(17-5/8
Imp gal) tank
V1V4
*1 Full 253 (9.96) 247 (9.72) Approx. 4 - 6
*2 1/2 130 (5.12) 130 (5.12) 27 - 35
*3 Empty 27 (1.06) 26 (1.02) 78 - 85
*1 and *3: When float rod is in contact with stopper.
SEL172V
SEL173V
GEL189N
INTERIOR AND SPOT LAMPS
EL-103

FUEL TANK GAUGE UNIT CHECK (With mechanical
fuel pump)
lFor removal, refer to FE section.
Check the resistance between terminals
V1andV2.
Ohmmeter Float position mm (in)
Resistance
value
(W) (+) (þ)60!(13-1/4
Imp gal) tank80!(17-5/8
Imp gal) tank
V1V2
*1 Full 50 (1.97) 247 (9.72) Approx. 4 - 6
*2 1/2 174 (6.85) 130 (5.12) 27 - 35
*3 Empty 277 (10.91) 26 (1.02) 78 - 85
THERMAL TRANSMITTER CHECK
Check the resistance between the terminals of thermal transmit-
ter and body ground.
Water temperature Resistance
60ÉC (140ÉF) Approx. 167 - 211W
100ÉC (212ÉF) Approx. 47 - 53W
VEHICLE SPEED SENSOR SIGNAL CHECK
1. Remove vehicle speed sensor from transmission.
2. Turn vehicle speed sensor pinion quickly and measure volt-
age between terminals
VaandVb.
GEL190-A
MEL424F
SEL378PA
INTERIOR AND SPOT LAMPS
Electrical Components Inspection (Cont'd)
EL-104

Use the chart below to find out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to find
the location (page number) of each wiring diagram.
Code Section Wiring Diagram Name
AAC/V EC IACV-AAC Valve
ABS BR Anti-lock Brake System
A/C, M HA Manual Air Conditioner
AUDIO EL Audio
BACK/L EL Back-up Lamp
BUZZER EL Warning Buzzer
CHARGE EL Charging System
CHOKE EC Automatic Choke
CIGAR EL Cigarette Lighter
CLOCK EL Clock
CMPS EC Camshaft Position Sensor
COOL/F LC Cooling Fan Control
DEF EL Rear Window Defogger
DIMDIP ELHeadlamp Ð With Dim-dip Lamp
System
D/LOCK EL Power Door Lock
DTRL ELHeadlamp Ð With Daytime Light
System
ECTS ECEngine Coolant Temperature
Sensor
EGRC/V EC EGRC Ð Solenoid Valve
FCUT EC Fuel Cut Solenoid Valve
F/HEAT EC Fuel Heater System
FICD EC IACV-FICD Solenoid Valve
FIPOT EC ISC-FI Pot
FPCM EC Fuel Pump Control Module
F/PUMP EC Fuel Pump
F/RTN EC Fuel Return Control Solenoid Valve
GLOW EC Quick-glow System
H/AIM EL Headlamp Aiming Control
HEATER HA Heater
H/LAMP EL Headlamp
HLC EL Headlamp Washer
HO2S EC Heated Oxygen Sensor
HORN EL Horn
H/SEAT EL Heated Seat
IATS EC Intake Air Temperature Sensor
IDLE EC IACV-Idle Up ControlCode Section Wiring Diagram Name
IGN EC Ignition System
IGN/SG EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
INT/L EL Interior and Spot Lamps
MAFS EC Mass Air Flow Sensor
MAIN ECMain Power Supply and Ground Cir-
cuit
METER ELSpeedometer, Tachometer, Temp.
and Fuel Gauges
MIL/DL ECMIL and Data Link Connector For
CONSULT
MIRROR EL Power Door Mirror
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-theft System
P/ANT EL Power Antenna
PGC/V ECCanister Purge
Control Solenoid Valve
PLA EC Partial Load Advance Control
PNP/SW EC Park/Neutral Position Switch
POWER EL Power Supply Routing
PST/SW EC Power Steering Oil Pressure Switch
R/FOG EL Rear Fog Lamp
SRS RS Supplemental Restraint System
S/SIG EC Start Signal
START EL Starting System
STOP/L EL Stop Lamp
SWL/V ECSwirl Control Valve Control Solenoid
Valve
TAIL/L EL Parking, License and Tail Lamps
TPS EC Throttle Position Sensor
TURN ELTurn Signal and Hazard Warning
Lamps
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WINDOW EL Power Window
WIPER EL Front Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
EL-253