1999 NISSAN PRIMERA fuel pump

SELF-DIAGNOSTIC MODE
Regarding items detected in ªSELF-DIAG RESULTSº mode, refer to ªDiagnostic Trouble chartº.
DATA MONITOR MODE
Monitored item
[Unit]ECM
input
signalsMain
signalsDescription Remarks
CKPS×RPM
(TDC) [rpm]
qq
lThe engine speed computed from the
crankshaft position sensor (TDC) sig-
nal is displayed.
CMPS×RPM -
PUMP [rpm]
qq
lThe engine speed computed from the
camshaft position sensor (PUMP) sig-
nal is displayed.
COOLAN TEMP/S
[ÉC] or [ÉF]
qq
lThe engine coolant temperature (deter-
mined by the signal voltage of the
engine coolant temperature sensor) is
displayed.lWhen the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the
ECM is displayed.
VHCL SPEED SE
[km/h] or [mph]
qq
lThe vehicle speed computed from the
vehicle speed sensor signal or ABS
actuator and electric unit (control unit)
signal is displayed.
FUEL TEMP SEN
[ÉC] or [ÉF]
qq
lThe fuel temperature (determined by
the signal voltage of the fuel tempera-
ture sensor) is displayed.
ACCEL POS SEN
[V]
qqlThe accelerator position sensor signal
voltage is displayed.
OFF ACCEL POS
[ON/OFF]
qqlIndicates [ON/OFF] condition from the
accelerator position switch signal.
C/SLEEV POS/S [V]
qqlThe control sleeve position sensor sig-
nal voltage is displayed.
BATTERY VOLT [V]
qqlThe power supply voltage of ECM is
displayed.
START SIGNAL
[ON/OFF]
qqlIndicates [ON/OFF] condition from the
starter signal.lAfter starting the engine, [OFF] is dis-
played regardless of the starter signal.
AIR COND SIG
[ON/OFF]
qq
lIndicates [ON/OFF] condition of the air
conditioner switch as determined by
the air conditioner signal.
BRAKE SW
[ON/OFF]
qlIndicates [ON/OFF] condition of the
stio lamp switch.
BRAKE SW2
[ON/OFF]
qlIndicates [ON/OFF] condition of the
stio lamp switch 2.
IGN SW
[ON/OFF]
qqlIndicates [ON/OFF] condition from igni-
tion switch.
MAS AIR/FL SE [V]
qqlThe signal voltage of the mass air flow
sensor is displayed.lWhen the engine is stopped, a certain
value is indicated.
ACT INJ TIMG [É]
q
lThe actual injection timing angle deter-
mined by the ECM (an approximate
average angle between injection start
and end from TDC) is displayed.
TARGET F/INJ
[mm
3/STROKE]q
lThe target fuel injection quantity
(determined by the ECM according to
the input signal) is indicated.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONCD20T
CONSULT-II (Cont'd)
EC-29

ACTIVE TEST MODE
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
TARGET F/INJ
lEngine: Return to the original
trouble condition
lFix the target injection quantity
using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.lControl sleeve position sensor
COOLING FAN
lIgnition switch: ONlOperate the cooling fan at ªLOWº,
ªHIº speed and turn ªOFFº using
CONSULT-II.Cooling fan moves at ªLOWº, ªHIº
speed and stops.lHarness and connectorlCooling fan motor
FUEL CUT SOL/V
lIgnition switch: ONlTurn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound.Solenoid valve makes an operating
sound.lHarness and connectorlSolenoid valve
EGRC SOL/V A
lIgnition switch: ONlTurn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound.Solenoid valve makes an operating
sound.lHarness and connectorlSolenoid valve
GLOW RLY
lIgnition switch: ON (Engine
stopped)
lTurn the glow relay ªONº and
ªOFFº using CONSULT-II and listen
to operating sound.Glow relay makes the operating
sound.lHarness and connectorlFuel pump relay
INJ TIMING
lEngine: Return to the original
trouble condition
lRetard the injection timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.lAdjust initial injection timing
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONCD20T
CONSULT-II (Cont'd)
EC-31

Introduction
The engine has an ECM to control major systems such as fuel
injection control, fuel injection timing control, glow control
system, etc. The ECM accepts input signals from sensors and
instantly drive the electronic fuel injection pump use the data to
based on current ambient conditions. It is essential that both
input and output signals are correct and stable. At the same time,
it is important that there are no problems such as vacuum leaks,
or other problems with the engine.
It is much more difficult to diagnose a problem that occurs inter-
mittently rather than catastrophically. Most intermittent problems
are caused by poor electric connections or faulty wiring. In this
case, careful checking of suspected circuits may help prevent the
replacement of good parts.
A visual check only may not be sufficient to determine the cause
of the problems. A road test with CONSULT-II or a circuit tester
connected should be performed. Follow the ªWork Flowº on the
next page.
Before undertaking actual checks, take a few minutes to talk with
a customer who approaches with a driveability complaint. The
customer can supply good information about such problems,
especially intermittent ones. Find out what symptoms are present
and under what conditions they occur. A ªDiagnostic Worksheetº
like the example on next page should be used.
Start your diagnosis by looking for ªconventionalº problems first.
This will help troubleshoot driveability problems on a vehicle with
an electronically controlled engine.
SEF858S
SEF233G
SEF234G
TROUBLE DIAGNOSIS Ð IntroductionCD20T
EC-33

Basic Inspection
Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
lHeadlamp switch is off,
lAir Conditioner switch is off,
lRear defogger switch is off,
lSteering wheel is in the straight-ahead position, etc.
BEFORE STARTING
1. Check service records for any
recent repairs that may indicate a
related problem, or the current need
for scheduled maintenance.
2. Open engine hood and check the
following:
lHarness connectors for faulty con-
nections
lVacuum hoses for splits, kinks, or
faulty connections
lWiring for faulty connections,
pinches, or cuts
3. Using priming pump, bleed air from
fuel system. Refer to ªFuel Filter
Checkº in MA section.
CONNECT CONSULT-II TO THE
VEHICLE.
Connect ªCONSULT-IIº to the data link
connector for CONSULT-II and select
ªENGINEº from the menu. Refer to EC-
CD-27.
DOES ENGINE START?
Ye s
ENo
Turn ignition switch to
the ªLOCKº position, wait
5 seconds and then start
engine. If engine fails to
start, check malfunction
item.
Run engine for 10 minutes.
CHECK IDLE SPEED.
Read engine idle speed in
ªDATA MONITORº mode with
CONSULT-II.
825 rpm   25 (in N position)
---------------------------------------------------------------------------------------------------------------------------------OR---------------------------------------------------------------------------------------------------------------------------------
Check idle speed using tachom-
eter tester.
825 rpm   25 (in N position)
(Go topAon next page.)
SEF142I
SEF671S
Priming pump
SEF689S
.Diesel tacho tester
.Injection tube
PEF190P
H
H
H
H
H
TROUBLE DIAGNOSIS Ð Basic InspectionCD20T
EC-37

pA
CHECK INJECTION TIMING.
1. Set No. 1 piston at TDC on its com-
pression stroke.
TDC: Without painted mark
2. Remove injection tubes and air
bleeder on the back of injection
pump.
3. Set dial gauge so its indicator points
to somewhere between 1.0 and 2.0
mm (0.039 and 0.079 in) on the
scale.
4. Turn crankshaft 2 turns clockwise
and check that dial gauge indicates
the same value again.
5. Turn crankshaft counterclockwise
about 100 degrees, then turn crank-
shaft slowly clockwise, and set dial
gauge indicator to 0 mm at the posi-
tion it stops.
6. Turn crankshaft clockwise and set it
at plunger lift timing mark using the
mark on the crankshaft pulley.
plunger lift timing mark: Yellow
painted mark
7. Read plunger lift.
Plunger lift:
0.89   0.08 mm (0.0350   0.0031
in) at plunger lift timing mark
lWhen repeating the checking,
start with step 5.
NG
EOK
Bleed air from fuel sys-
tem.
After this inspection,
unnecessary diagnostic
trouble code No. might
be displayed.
Erase the stored
memory in ECM.
Refer to ªON BOARD
DIAGNOSTIC SYSTEM
DESCRIPTIONº.
OK
INSPECTION END
Adjusting
1. If plunger lift is not within the speci-
fied value, adjust by turning injec-
tion pump.
lIf indication is smaller than the
specified value, turn pump body
away from engine.
lIf indication is larger than the
specified value, turn pump body
towards engine.
2. Tighten injection pump securing
bolts and nuts.
Nut:
: 20-25N´m
(2.0 - 2.6 kg-m, 15 - 18 ft-lb)
Bolt:
: 25-35N´m
(2.6 - 3.6 kg-m, 18 - 26 ft-lb)
3. Remove dial gauge and install air
bleeder with new washer.
4. Install injection tubes.
Flare nut:
: 14-20N´m
(1.4 - 2.0 kg-m, 10 - 15 ft-lb)
5. Bleed air from fuel system.
Refer to ªWater Draining, Fuel Filter
Check and Replacementº of
ªENGINE MAINTENANCEº in MA
section.
EGo to
SEF661S
SEF655S
Plunger lift timing mark
(Yellow painted mark)
TDC (Without painted mark)
SEF662S
Increase
Decrease
SEF657S
H
H
H
TROUBLE DIAGNOSIS Ð Basic InspectionCD20T
Basic Inspection (Cont'd)
EC-38

Ð: Not applicable
Check Items
(Possible Cause)*1
Confirmation
Procedure
Quick Ref.*2
Overall
Function
CheckMI
IlluminationReference
Page
lHarness or connectors
(The sensor circuit is open or shorted.)
lMass air flow sensorIGN: ON Ð Ð EC-CD-62
lHarness or connectors
(The sensor circuit is open or shorted.)
lEngine coolant temperature sensorIGN: ON Ð Lighting up EC-CD-66
lHarness or connectors
(The sensor circuit is open or shorted.)
lVehicle speed sensor or ABS actuator and electric unit
(control unit)Ð LIFTING Ð EC-CD-70
lHarness or connectors
(The sensor circuit is open or shorted.)
lControl sleeve position sensorRUNNING Ð Lighting up EC-CD-74
lMain power supply circuit (ECM terminals23,45),
68and fuse
lHarness or connectors
(Electric governor and control sleeve position sensor cir-
cuit)
lElectronic fuel injection pump
lECM
lElectric governorRUNNING
(DRIVING)Ð Lighting up EC-CD-78
lHarness or connectors
(Injection timing control valve, Needle lift sensor and
Crankshaft position sensor (TDC) circuit]
lInjection timing control valve
lNeedle lift sensor
lCrankshaft position sensor
lAir in fuel lineRUNNING
(DRIVING)Ð Lighting up EC-CD-82
*1:lThis is Quick Reference of ªDIAGNOSTIC TROUBLE CONFIRMATION PROCEDUREº.
Details are described in each TROUBLE DIAGNOSIS.
*2:
lThe ªOVERALL FUNCTION CHECKº is a simplified and effective way to inspect a component or circuit.
In some cases, the ªOVERALL FUNCTION CHECKº is used rather than a ªDIAGNOSTIC TROUBLE CONFIRMATION PRO-
CEDUREº.
When no DIAGNOSTIC TROUBLE CONFIRMATION PROCEDURE is available, the ªNGº result of the OVERALL FUNCTION
CHECK can be considered to mean the same as a malfunction item detection.
lDuring an ªNGº OVERALL FUNCTION CHECK, the malfunction item might not be confirmed.lThis is Quick Reference of ªOVERALL FUNCTION CHECKº.
Details are described in each TROUBLE DIAGNOSIS.
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
Diagnostic Trouble Chart (Cont'd)
EC-40

Ð: Not applicable
Check Items
(Possible Cause)*1
Confirmation
Procedure
Quick Ref.*2
Overall
Function
CheckMI
IlluminationReference
Page
lHarness or connectors
(The cooling fan circuit is open or shorted.)
lCooling fan
lRadiator hose
lRadiator
lRadiator cap
lWater pump
lThermostat
lFan belt
lEngine coolant temperature sensor
For more information, refer to ª12 MAIN CAUSES OF
OVERHEATINGº. (EC-CD-95)ÐIGN: ON
(RUNNING)Lighting up EC-CD-78
lECM
IGN: ON Ð Lighting up EC-CD-86
lHarness or connectors
(The sensor circuit is open or shorted.)
lNeedle lift sensor
lAir in fuel line
lClogging No. 1 injection nozzleRUNNING Ð Lighting up EC-CD-97
lHarness or connectors
(The solenoid valve circuit is open or shorted.)
lFuel cut solenoid valveRUNNING Ð Lighting up EC-CD-100
lHarness or connectors
(The sensor circuit is open or shorted.)
lFuel temperature sensorIGN: ON Ð Ð EC-CD-104
lHarness or connectors
(The sensor circuit is open or shorted.)
lAccelerator position sensor
lAccelerator position switchIGN: ON Ð Lighting up EC-CD-108
lHarness or connectors
(The sensor circuit is open or shorted.)
lCrankshaft position sensor (TDC)RUNNING Ð Lighting up EC-CD-114
lNo failure
Ð ÐÐÐ
*1:lThis is Quick Reference of ªDIAGNOSTIC TROUBLE CONFIRMATION PROCEDUREº.
Details are described in each specific TROUBLE DIAGNOSIS.
*2:
lThe ªOVERALL FUNCTION CHECKº is a simplified and effective way to inspect a component or circuit.
In some cases, the ªOVERALL FUNCTION CHECKº is used rather than a ªDIAGNOSTIC TROUBLE CONFIRMATION PRO-
CEDUREº.
When no DIAGNOSTIC TROUBLE CONFIRMATION PROCEDURE is available, the ªNGº result of the OVERALL FUNCTION
CHECK can be considered to mean the same as a malfunction item detection.
lDuring an ªNGº OVERALL FUNCTION CHECK, the malfunction item might not be confirmed.lThis is Quick Reference of ªOVERALL FUNCTION CHECKº.
Details are described in each specific TROUBLE DIAGNOSIS.
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
Diagnostic Trouble Chart (Cont'd)
EC-42

Symptom Matrix Chart
SYSTEM
Ð Basic engine
control systemSYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?
Fuel cutNO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATING
BLACK SMOKE
WHITE SMOKENew CT/CS AA AB AC AD AE AF AG AH AJ AK AL AM AP HA
Injec-
tion
timingAdvancedqq
llqlqqlqEC-CD-38
Retardedqq
llqlqqlqEC-CD-38
Electric injection
pump mainframe
llllqqqqqlqqqllqqlq qqqÐ*1
Injection nozzleqqqqqqq
lqq qll lEC-CD-22 *2
Glow systemqq
ll l lEC-CD-118
Engine bodyqq
llqqqlqq qllqqqlEM-
section*3
EGR system
ll lEC-CD-129
Air cleaner and
ducts
ll lqMA-
section*4
l; High Possibility Item
q; Low Possibility Item
*1: Insufficient or excess amount. Governor malfunction may be the cause.
*2: Depends on open-valve pressure and spray pattern.
*3: Caused mainly by insufficient compression pressure.
*4: Symptom varies depending on off-position of air duct, etc.
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
EC-47