1987 NISSAN PULSAR oil temperature

Fuel and Engine Management 83
the fuel pump will not operate until the oil
pressure is sufficient to extinguish the oil
pressure warning lamp. Therefore it will be
necessary to operate the starter motor for a
longer period than usual to start the engine.

(3) Faulty EFI component wiring connections:
Check that all component wiring connections are
clean and secure.
(4) Manifold absolute pressure (MAP) sensor
vacuum hose blocked or disconnected: Clear or recon-
nect the vacuum hose. (5) Fault in the ignition system: Check the
primary and secondary ignition circuits.
(6) Engine flooded: Fully depress the throttle
pedal until the engine starts. Check the coolant
temperature sensor. Check th e injector(s) for leakage.
ENGINE STARTS THEN STALLS

(1) Water in the fuel: Dr ain the fuel from the
system and renew the fuel filter.
(2) Air leakage at the inlet manifold: Check all
joints and hoses for air leaks. (3) Faulty EFI wiring connections: Check that
all component wiring connections are clean and
secure.
(4) Ignition timing incorrectly set: Check and
adjust the timing. (5) MAP sensor faulty or supply hose discon-
nected or blocked: Check the vacuum supply hose.
Check the operation of the MAP sensor.
ENGINE MISFIRES

(1) Faulty, dirty or incorrectly adjusted spark
plugs: Renew or clean and adjust the spark plugs.
(2) Condensation in the distributor cap: Dry and
examine the cap for cracks. (3) Faulty high tension leads: Check and renew
the high tension leads.

Testing the fuel system pressure using a pressure
gauge.
(4) Faulty ignition coil: Check and renew the
ignition coil.
(5) Fuel blockage: Check for blockage in the fuel
filter, lines and injector(s). (6) Low fuel pressure: Check the fuel pump and
fuel pressure regulator. (7) Water in the fuel: Dr ain the fuel from the
system and renew the fuel filter. (8) Loose fuel supply wiring connectors: Check
all connectors for tightness. (9) Faulty fuel injector: Check the connections
and test the condition of the fuel injectors.
ENGINE LACKS POWER

(1) Ignition timing incorrectly set: Check and
adjust the timing.
(2) Water in the fuel: Dr ain the fuel from the
system and renew the fuel filter.
(3) Incorrectly adjusted throttle cable: Adjust the
throttle cable.



Check the distributor cap for cracks or tracking be- tween the terminals. The air filter element should be renewed at 40 000 km
intervals. 1.8 liter engine.

120 Emission Control
If the flap does not operate as described, renew
the air cleaner housing.

(2) Disconnect the vacuum hose from the servo
unit and connect it to a vacuum gauge.
(3) Start and run the engine at approximately
1 200 rpm. If the engine is cold there should be
vacuum. (4) As the engine temperature increases the
vacuum should decrease to zero. If the vacuum gauge does not read as described,
check that the vacuum supply hose is connected to the
thermal vacuum valve and the throttle body.

If no fault is found, renew the thermal vacuum
valve.

4. EXHAUST CONTROL SYSTEM
DESCRIPTION
The exhaust system is the greatest source of
pollutant emission from the internal combustion
engine.

On the Pulsar range of vehicles covered by this
manual, the exhaust control system consists of a
catalytic converter and the engine management sys-
tem. The engine management system constantly mon-
itors the exhaust gases via an oxygen sensor located in
the exhaust system. Fuel injection is then adjusted
accordingly to give the minimum amount of exhaust
emissions. Refer to the Fuel and Engine Management
section for further information.

CATALYTIC CONVERTER
The catalytic converter, which is located in the
exhaust system, converts hydrocarbons, oxides of
nitrogen and carbon monoxide present in the exhaust
gases into carbon dioxide, nitrogen, water and heat.

The catalytic converter does not require periodic
maintenance or replacement under normal circum-
stances. However, it can be damaged or poisoned by
excessively high exhaust gas temperatures, raw fuel
and the use of leaded fuel.

Installed view of the catalytic converter.
To prevent the use of leaded fuel, a small diam-
eter fuel filler neck with a spring loaded trap door is
used.

To prevent damage to the catalytic converter, the
following precautions sh ould be observed.

(1) Do not operate the vehicle on leaded fuel.
(2) Do not push or tow start the vehicle.
(3) Do not allow the engine to idle for prolonged
periods. (4) Do not operate the vehicle if the engine is
misfiring.
(5) Avoid running the vehicle out of fuel.
(6) Ensure that the engine oil is formulated to
contain low phosphorous levels.
To Inspect Catalytic Converter

(1) Inspect the converter for dents and damage.
If the converter is damaged, it should be renewed. (2) Inspect the converter heat shield for damage
and ensure that it is positioned correctly. Renew the
converter heat shield if necessary.
To Remove and Install
To remove and install the catalytic converter,
refer
to the Exhaust System heading in the Engine section.

Automatic Transaxle 141

(2) Incorrectly adjusted kickdown cable: Check
and adjust or renew the kickdown cable as required.

NOTE: Check and adjust the throttle cable
before adjusting the kickdown cable.

ENGINE WILL NOT START IN P OR N
RANGE OR WILL START IN ANY RANGE

(1) Neutral safety switch faulty: Adjust or renew
the neutral safety switch. (2) Incorrectly adjusted selector cable: Check
and adjust the selector cable as detailed.
2. DESCRIPTION

The automatic transaxle combines a fluid coup-
ling or torque converter with a fully automatic three
speed epicyclic gear system.

The transaxle provides th ree forward ratios and
one reverse. The hydraulic system consists of a single
pump and valv e arrangement.

The final drive or differential and the transaxle
use a common lubricant. The transaxle oil pan and
final drive drain plug will have to be removed to drain
the transaxle completely. Topping up or refilling is
done through the dipstick tube.

The gear selector lever is floor mounted and
connected to the transaxle by an adjustable cable. The
selector quadrant adjacent to the base of the lever is
marked P, R, N, D, 2, 1.

It is necessary for the selector lever to be in P or
N before the engine can be started. When testing or
tuning the engine, the handbrake must be firmly
applied and the selector lever placed in the P position,
otherwise the vehicle could move forward or back-
wards as the engine speed is increased.

For long distance towing the vehicle should be
towed with the front end raised.

It is not possible to start the engine by either
towing or pushing the vehicle.

The transaxle can be removed from the vehicle
without engine removal.

NOTE: As extensive knowledge and equip-
ment is required to overhaul the automatic
transaxle assembly, it is therefore not a
worthwhile repair proposition for the aver-
age person. However if the transaxle must
be overhauled by a specialist or be replaced
with a reconditioned unit, the removal and
installation procedure is fully described at
the end of this section.

3. TRANSAXLE FLUID
Only use the recommended transaxle fluid speci-
fied by the manufacturer when topping up or changing
the fluid in the system.

TO CHECK AND TOP UP
NOTE: The fluid level should be checked
after approximately 5 minutes driving on
the road when the engine has achieved its
normal operating temperature of approxi-
mately 65 deg C.

(1) Place the vehicle on a level floor and open
the engine bonnet.

NOTE: When working on the automatic
transaxle cleanliness is very important. Do
not reuse transaxle fluid and do not allow
foreign matter to enter the filler opening.

(2) Clean around the top of the dipstick to
ensure that no dirt or foreign matter can enter the
dipstick tube.
(3) Place the selector in the P position and
firmly apply the handbrake. (4) Move the selector thro ugh each gear return-
ing it to the P position.
(5) Check the fluid level with the engine running
at idle. Install the dipstick fully into the dipstick tube.
NOTE: If the vehicle has been driven at high
speed, or has been towing a load, or driven
through heavy city traffic in hot weather, a
period of about 30 minutes should be
allowed to permit the transaxle to cool
before checking the fluid level.

(6) Withdraw the dipstick and check the fluid
level reading. The fluid should be at the H mark on
the dipstick. If the fluid is low, stop the engine and
remove the dipstick from the vehicle. Using a funnel,
top up the transaxle with the recommended type of
transaxle fluid through the dipstick tube. (7) If the level is reading too high allow the
engine to cool down for about 30 minutes and recheck
the level as described. If the level is still too high, a
small amount of transaxle fluid may be drained from
the transaxle.

Checking the fluid level on the automatic transaxle
dipstick.

Electrical System 203
BRUSH HOLDER
Dismantled view of the Hitachi starter motor.
Check the field coil insulation using an
ohmmeter. Connect one test probe to the solenoid
cable terminal and the other test probe to the body of
the yoke. If continuity exists, renew the field coils. Check that the commutator is free from
pitting and burning. Clean the commutator with a
petrol moistened cloth and polish with a strip of fine
glass paper.
A badly worn commutator may be repaired by
mounting in a lathe and taking a light cut using a very
sharp tool with the lathe rotating at high speed. After
machining, undercut the insulation between the seg-
ments to Specifications. Do not machine the commu-
tator to below 29 mm diameter. Check the armature
gear teeth for wear and damage.

Check the armature for short circuit using an
ohmmeter. Place one of the test probes on the
armature shaft or core and move the other test probe
around the periphery of the commutator. If continuity
exists at any point, the armature is faulty and should
be renewed. Check the pinion for wear and damage. The
pinion should move smoothl y along the clutch assem-
bly helical splines. Check the spring, collar and snap
ring for serviceability.
Check that the clutch assembly locks in one
direction and rotates smoothly in the opposite direc-
tion. Check for wear and damage to the reduction gear
teeth on the outside of the clutch assembly.
Check that continuity exists between the
solenoid spade terminal and the solenoid body and
between the solenoid spade terminal and the solenoid
field coil terminal. Renew the solenoid if continuity
does not exist. Renew all the components found to be
unserviceable in the above checks.
To Assemble

Assembly is a reversal of the dismantling proce-
dure with attention to the following points:

(1) If removed, install new bearings to the clutch
assembly and the armature. Lubricate the armature
bearings with high temperature grease.

The sealed bearings on the clutch assembly are
lubricated during manufacture and further lubrication
is unnecessary.

Apply high temperature grease to the yoke
end cover bearing recess, the drive end bracket and
pinion housing bearing recesses, the clutch assembly
reduction gear teeth, the armature gear teeth, the
pinion helical splines, th e solenoid plunger and the
spring and lever. Install the pinion to the clutch assembly and
install the spring and collar to the pinion. Hold the collar down and install the snap ring
to the end of the pinion.
Position the collar over the snap ring. If
necessary, squeeze the snap ring into the groove using
multigrip pliers to enable the collar to be clipped over
the snap ring. Install the pinion and clutch assembly to the
drive end bracket.
Install the pinion housing to the drive end
bracket. Install and tighten the retaining screws
se-
curely. Check that the pinion rotates freely.
Assemble the lever and spring to the solenoid
in the position noted on dismantling.
Install the solenoid assembly and rubber seal
to the drive end bracket.
Install and tighten the solenoid retaining
bolts securely. Connect 12 volts between the solenoid spade
terminal and the solenoid field coil terminal and
measure the distance that the end of the pinion
protrudes from the pinion housing. Pull the pinion by hand until it contacts the stop
and measure the pinion end protrusion.

If necessary, add or subt ract shims between the
solenoid mounting face and the drive end bracket
until the difference between the above measurements
is 0.3-1.5 mm.

Install the armature to the yoke.
Install the brush holder to the yoke. Install
the
PLUNGER
O RING

220 Electrical System


Wiring diagram (WD2) for the instruments, hazard and turning signal systems.
COLOUR CODE
The first letter of the code
represents the main wire color,
the other letters represent the
trace colors.

B - BLACK
L - BLUE
G - GREEN
R - RED
Y - YELLOW
W- WHITE
N - BROWN
O - OHANGE
K - PINK
S - GREY V -VIOLET
P - PURPLE X - LIGHT GREEN Z - LIGHT BLUE M - DARK GREEN T - DARK BLUE A - LIGHT BROWN E - SLATE D - TAN
KEY 1. Fuse 11 Ignition
2. Speedometer
3. Vehicle speed sensor
4. To No. 21 WD1
5. To ECU A10
6. To No. 13 WD1
7. Tachometer
8. Voltage regulator
9. Resistor
10. Temperature gauge
11. Fuel gauge
12. Temperature sender
13. Fuel sender
14. To ECM lamp
15. Oil lamp
16. Park brake lamp
17. Low fuel lamp
18. To ECU A5
19. To No. 20 WD1
20. Park brake switch
21. Low fuel switch
22. Brake switch
23. Brake fail lamp
24. Bulb check relay
25. Charge lamp
26. Door ajar lamp
27. To No. 6 VWD1
28. To No. 8 WD4
29. To No. 18 WD6
30. To No. 17 WD6 31. Hazard switch

32. Flasher unit
33. Turn signal switch
34. L H front combination
lamp
35. L H side indicator lamp
36. L H rear combination lamp
37. L H instrument warning
lamp
38. R H instrument warning lamp
39. R H rear combination lamp
40. R H side indicator lamp
41. R H front combination lamp
42. Divider circuit

Body 237


Installed view of the front seat mounting bolts.
Installation is a reversal of the removal procedure
with attention to the following points:

Lubricate the seat slides with multi-purpose
grease prior to installation of the seat.
Install all mounting bolts by hand prior to
tightening the mounting bolts securely.
REAR SEAT CUSHION

To Remove and Install
Firmly bump the lower front of the seat
cushion rearwards and up lo release the retaining clips
from the vehicle floor panel.
With the retaining clips released, lift the
front of the seat cushion and release the rear mounting
wires. (3) Lift the rear seat cushion out of the vehicle.
Installation is a reversal of the removal procedure

with attention to the following points:
Position the centre seat belts on top of the
rear seat cushion prior to in stallation of the cushion.
Ensure that the clips at the forward edge of
the seat cushion are proper ly engaged in the floor
panel.
REAR SEAT BACKREST

To Remove and Install
Fold the rear seat backrest forward.
Remove the outer seat backrest hinge bolts.
Pull each backrest to wards the door and off
the centre hinge pins. Remove the rear seat backrest from the
vehicle. Installation is a reversal of the removal procedure.

12. VEHICLE CLEANING
CLEANING THE EXTERIOR
In order to remove dirt and road grime and thus
preserve paint finish, vehicles in continuous use
should be washed at least once a week.

Before washing the paintwork, it is good policy to
first hose all dirt from the underbody and clean out
the drain holes in the doors and sill panels.

Hose the vehicle to remove as much grit as
possible and wash using a clean chamois or sponge,
ensuring that the chamois or sponge is free from dirt
or grit which could scratch the paint surface.

Avoid washing the vehicle in bright sunlight with
high temperature as this will give the paintwork a
streaky watermarked finish.

If necessary, wash the vehicle using a reputable
brand Wash and Wax liquid. The Wash and Wax
liquid will restore the paint luster and leave the
paintwork with a protective coating of wax.

After a period it may become necessary to polish
the vehicle in order to remove built up foreign matter
and give the paintwork maximum protection from
industrial fall-out and salt from sea air etc. Before
polishing the paintwork, always wash the surface to
remove as much road grime as possible. When
polishing follow the polishing instructions which come
with the polish.

NOTE: Grease, oil or tar on the paint
surface can be removed with a little kerosene
or white spirits. To prevent staining, wash
and polish the affected area as soon as the
grease, oil or tar is removed.

CLEANING VINYL TRIM
To maintain the vinyl interior trim in good
condition it should be regularly vacuumed to remove
loose dirt and then wiped with a dry or damp cloth.

If the trim is soiled or stained, the following
cleaning procedure is recommended:

Using warm water, cheese cloth and a mild
soap, thoroughly wash the affected areas.
Repeat the operation using damp cheese
cloth only.
To complete the cleaning operation wipe the
trim over with a dry piece of cheese cloth.
NOTE: If the interior trim is badly soiled or
stained, wash with a reputable brand of
upholstery cleaner care fully following the
makers instructions.

CLEANING CLOTH TRIM
Loose dirt and dust on cloth trim should be
removed with a vacuum cleaner or a very soft brush.
Do not use a whisk brush or any other type of coarse
brush or damage to the cloth could result. If the fabric
is soiled the following cl eaning procedure is recom-
mended.

Sponge the fabric ligh tly with warm water
containing a little detergen t and household ammonia.
After sponging, rub the fabric lightly. If
soiling is still apparent, re peat the sponging operation.
Use a clean dry cloth to soak up excess fluid.