1999 NISSAN PRIMERA fuel pressure

Body Rear End and Opener
4-DOOR SEDAN
lWhen removing or installing trunk lid, place a cloth or other padding on rear fender panels. This pre-
vents vehicle body from being scratched.
lBumper fascia is made of plastic. Do not use excessive force and be sure to keep oil away from it.
lTrunk lid adjustment: Adjust at hinge-trunk lid portion for proper trunk lid fit.
lTrunk lid lock system adjustment: Adjust striker so that it is in the center of the lock. After adjustment,
check trunk lid lock operation.
WARNING:
lBe careful not to scratch trunk lid stay when installing trunk lid.
A scratched stay may cause gas leakage.
lThe contents of the trunk lid stay are under pressure. Do not take apart puncture, apply heat or
allow fire near it.
lOpener cable: Do not attempt to bend cable using excessive force.
lAfter installation, make sure that trunk lid and fuel filler lid open smoothly.
NBT034
5.1 - 6.37
(0.52 - 0.65,
45.1 - 56.4)
Upper
Spring holder
LowerOpener handle
Opener cable
Lock nut
Fuel filler lid opener & control
Trunk lid striker
.5.1 - 6.37
(0.52 - 0.65,
45.1 - 56.4)
: N´m (kg-m, ft-lb)
20.6 - 26.5
(2.1 - 2.7,
15 - 20)
: N´m (kg-m, in-lb) Cloth
Actuator
.Trunk lid lock
key cylinder
.Trunk lid lock
.5.1 - 6.37
(0.52 - 0.65, 45.1 - 56.4)
BODY END
BT-7

5-DOOR HATCHBACK
lBack door adjustment: Adjust at hinge-body portion for proper back door fit.
lBack door lock system adjustment: Adjust lock & striker so that they are in the center. After adjustment,
check back door lock operation.
WARNING:
lBe careful not to scratch back door stay when installing back door. A scratched stay may cause
gas leakage.
lThe contents of the back door stay are under pressure. Do not take apart, puncture, apply heat
or allow fire near it.
lOpener cable: Do not attempt to bend cable using excessive force.
lAfter installation, make sure that back door and fuel filler lid open smoothly.
REMOVAL Ð Rear bumper assembly
p1Remove license plate lamp
p2Remove clipsC203securing left and right chipping protector.
p3Remove screws securing bumper fascia to left and right rear fenders.
p4Remove clipsCS101securing bumper fascia to rear panel.
p5Remove clipsC205securing bumper fascia to rear panel upper.
p6Extract bumper fascia assembly.
NBT036 Opener handleOpener cable
Lock nut
Fuel filler lid opener & control
20.6 - 26.5
(2.10 - 2.70,
15.2 - 19.5)
12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)
12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)
20.6 - 26.5
(2.10 - 2.70,
15.2 - 19.5)
: N´m (kg-m, ft-lb) Cloth
.5.1 - 6.37
(0.52 - 0.65, 45.1 - 56.4)
Actuator
Key
cylinder
BODY END
Body Rear End and Opener (Cont'd)
BT-9

WAGON
lBack door adjustment: Adjust at hinge-body portion for proper back door fit.
lBack door lock system adjustment: Adjust lock & striker so that they are in the center. After adjustment,
check back door lock operation.
WARNING:
lBe careful not to scratch back door stay when installing back door. A scratched stay may cause
gas leakage.
lThe contents of the back door stay are under pressure. Do not take apart, puncture, apply heat
or allow fire near it.
lFuel filler lid opener cable: Do not attempt to bend cable using excessive force.
lAfter installation, make sure that back door and fuel filler lid open smoothly.
REMOVAL Ð Rear bumper assembly
p1Remove clipsC203securing left and right chipping protector.
p2Remove screws securing bumper fascia to left and right rear fenders.
p3Remove clipsC205(small) securing bumper fascia to rear panel.
p4Remove clipsC205(large) securing bumper fascia to rear panel upper.
p5Extract bumper fascia assembly.
NBF270 Opener handle
Opener
cableLock nut
.Fuel filler lid opener & control
.20.6 - 26.5
(2.10 - 2.70,
15.2 - 19.5)
12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)
12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)
.12.7 - 15.7
(1.30 - 1.60,
9.4 - 11.6)
: N´m (kg-m, ft-lb)
: N´m (kg-m, in-lb)
2.9 - 3.8 N´m
(0.30 - 0.39 kg-m,
25.7 - 33.6 in-lb)..5.1 - 6.37
(0.52 - 0.65,
45.1 - 56.4)Key cylinder
Actuator
BODY END
Body Rear End and Opener (Cont'd)
BT-11

System Chart
Crankshaft position sensor
(TDC)E
ECM
Control sleeve position sensorE
Fuel temperature sensorE
Mass air flow sensorE
Engine coolant temperature
sensorE
Needle lift sensorE
Accelerator position sensorE
Accelerator position switchE
Air conditioner switchE
Ignition switch (ON & ST POS.)E
Battery voltageE
Vehicle speed sensor or ABS
actuator and electric unit (con-
trol unit)E
Brake switchE
Atmospheric pressure sensorE
EFuel injection controlEElectric governor
EFuel injection timing controlEInjection timing control
valve
EFuel cut controlEFuel cut solenoid valve
EGlow control systemEGlow relay & glow lamp
EOn board diagnostic systemEMalfunction indicator
(On the instrument panel)
EEGR valve controlEEGRC-solenoid valve A & B
ECooling fan controlECooling fan relays
EAir conditioning cut controlEAir conditioner relay
ECooling fan motor controlECooling fan relay
ENGINE AND EMISSION CONTROL OVERALL SYSTEMCD20T
EC-14

FUEL TEMPERATURE COMPENSATION
Input/output signal line
Fuel temperature sensorEFuel temperature
ECM
EElectric
governorCrankshaft position sensor (TDC)EEngine speed
Control sleeve position sensor
EControl sleeve position
The amount of fuel leaking at or around high-pressure parts inside the fuel injection pump varies with fuel
temperature and engine speed. This will result in a difference between the target amount of fuel injected and
the actual amount. The ECM compensates for the actual amount depending on the signal from the fuel
temperature sensor, the control sleeve position sensor and the crankshaft position sensor.
DECELERATION CONTROL
Input/output signal line
Accelerator sensorEAccelerator position
ECM
EElectric
governor
Camshaft position sensor (PUMP)EEngine speed
The ECM cuts power supply delivery to the electric governor during deceleration for better fuel efficiency.
The ECM determines the time of deceleration according to signals from the accelerator sensor and cam-
shaft position sensor (PUMP).
ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTIONCD20T
Fuel Injection System (Cont'd)
EC-17

Fuel Injection Timing System
SYSTEM DESCRIPTION
The fuel injection timing system determines the optimal fuel injection timing, based on engine speed, injec-
tion quantity, engine coolant temperature and atmospheric pressure. The timing is formed by a basic value
(Basic Control) and two correction values. By performing a duty cycle signal on the timing control valve, the
ECM allows the valve to provide optimal injection timing. The ECM also performs feedback control on the
timing control valve using the signal from the needle lift sensor which detects the actual fuel injection tim-
ing.
BASIC CONTROL
Input/output signal line
Crankshaft position sensor (TDC)EEngine speed
ECM
E
Injection
timing con-
trol valveNeedle lift sensorEInjection timing
Control sleeve position sensor
EControl sleeve position
The optimal fuel injection timing data, predetermined in propor-
tion to engine speeds and amount of fuel injected, are stored in
the ECM memory. The ECM uses the data to control the fuel
injection timing.
HIGH ALTITUDE COMPENSATION
Crankshaft position sensorEEngine speed
ECM
E
Injection
timing
control
valveControl sleeve position sensorEControl sleeve position
Atmospheric pressure sensor
EAtmospheric pressure
Needle lift sensor
EInjection timing
Fuel temperature sensor
EFuel temperature
For better drivability in high altitude areas, the fuel injection tim-
ing is advanced and the fuel quantity is reduced according to the
atmospheric pressure.
SEF650S
Fuel injection timing
BTDC
(degree)Fuel injection
volume
Large
Small
Engine rpm
NEF771
Fuel injection
timing compensation
Normal
High altitude
Engine rpm
ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTIONCD20T
EC-18

CAUTION:
lDo not disassemble injection nozzle assembly. Entrust
disassembly or adjustment to BOSCH service shop.
lPlug flare nut with a cap or rag so that no dust enters the
nozzle.
Removal and Installation
1. Remove fuel injection tube and spill tube.
2. Remove injection nozzle assembly.
Also remove gasket from nozzle end.
3. Install injection nozzle in the reverse order of removal.
Injection nozzle to engine:
: 59 - 69 N´m (6.0 - 7.0 kg-m, 43 - 51 ft-lb)
Injection nozzle to tube:
: 22 - 25 N´m (2.2 - 2.5 kg-m, 16 - 18 ft-lb)
Spill tube:
: 39 - 49 N´m (4.0 - 5.0 kg-m, 29 - 36 ft-lb)
a. Always clean the nozzle holes.
b. Always use new injection nozzle gasket.
c. Note that small washer should be installed in specified
direction.
d. Bleed air from fuel system.
Test and Adjustment
WARNING:
When using nozzle tester, be careful not to allow diesel fuel
sprayed from nozzle to contact your hands or body, and
make sure your eyes are properly protected with goggles.
INJECTION PRESSURE TEST
1. Install nozzle to injection nozzle tester and bleed air from
flare nut.
NEF396
Nozzle side
Combustion
chamber side
NEF774 No. 1 injection nozzle
EF791A
INJECTION NOZZLECD20T
EC-22

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