correct NISSAN ALMERA N15 1995 Owner's Manual

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AH AJ
AK AL
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Fuel Fuel
pump circuit

••
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EC-145
Fuel pressure regulator system

•••
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EC-33
Injector circuit

•• •
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EC-141
Evaporative emissionsystem

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EC-29
Air Positivecrankcase ventilation system

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EC-31
Incorrect idlespeed adjustment

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(~)

C)

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EC-35
IACV-AAC valvecircuit

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EC-150

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IACV-FICD solenoidvalvecircuit
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EC-204
Ignition Incorrectignitiontimingadjustment

0
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EC-35
Ignition circuit

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EC-113
EGR (EGRvalve
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EVAP canister purge

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EC-179,183
control soienoid valvecircuit
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EGR system
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EC-179.
183
Main power supply andground circuit
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HAsection
•

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(), Low Possibility Item

EC-71
(continued
onnext page)

TROUBLEDIAGNOSES -General Description
Symptom MatrixChart(Cont'd)

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AA ASAC AD AEAFAG AH AJAK ALAM HA
ECCS Camshaft
positionsensorcircuit

•••
0
0
()

0 0
EC-94
Mass airflow sensor circuit

••
•
0

•
••

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EC-101
(Heated) oxygensensorcircuit

••
0

• •
•

•
EC-189,194
Engine coolant temperature sensor

••
•
0

••
•

•
•
•
EC-108
circuit
Throttle position sensorcircuit

•• ••• ••
•
EC-128
Incorrect throttleposition sensor

•
()
()

•
0
0

•
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EC-65
adjustment
Vehicle speedsensor circuit
0
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EC-133
Knock sensor circuit

000 0
EC-119
ECM
0
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EC-64
Start signal circuit
0
EC-138
Park/Neutral positionswitchcircuit

0
0
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EC-173
Power steering oilpressure switchcir-

0
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EC-169
cuit
• ;High Possibility Item

0;
Low Possibility Item

EC-72
(continued
onnext page)

ON-BOARDDIAGNOSTIC SYSTEMDESCRIPTION
CONSULT (Conl'd)

Monitored item ECM
Main
[Unit] input
signals Description
Remarks
signals
AIR COND SIG •Indicates [ON/OFF] conditionofthe
[ON/OFF]
00
air
conditioner switchasdetermined
by the airconditioning signal.
PIN POSI SW

00
•
Indicates [ON/OFF] conditionfromthe
[ON/OFF] park/neutralpositionswitchsignal.
PW/ST SIGNAL •Indicates [ON/OFF] conditionofthe
[ON/OFF]
00
power
steering oilpressure switch
determined bythe power steering oil
pressure signal.
INJ PULSE [msec]

0
•
Indicates theactual fuelinjection •
When theengine isstopped, acertain
pulse widthcompensated byECM computedvalueisindicated.
according tothe input signals.
IGN TIMING [BTDC]

0
•
Indicates theignition timingcomputed
by ECM according tothe input sig-
nals.
IACV-AACIV
[%]
•Indicates theidle aircontrol valve

0
(AAC
valve) control valuecomputed
by ECM according tothe input sig-
nals.
A/F ALPHA [%J •Indicates themean valueofthe air- •When theengine isstopped, acertain

0
fuel
ratio feedback correction factor valueisindicated.
per cycle. •This dataalsoincludes thedata for
the air-fuel ratiolearning control.
AIR COND RLY •Indicates theairconditioner relay
[ON/OFF]
0
control
condition (determined byECM
according tothe input signal).
FUEL PUMP RLY •Indicates thefuel pump relaycontrol
[ON/OFFJ
0
condition
determined byECM accord-
ing tothe input signals.
COOLING FAN
•Indicates thecontrol condition ofthe
[HI/LOW/OFFJ coolingfans(determined byECM

0
according
tothe input signal).
HI ...High speed operation
LOW ...Low speed operation
OFF ...Stopped
EGRC SOLIV •Indicates thecontrol condition ofthe
[ON/OFFJ EGR
valve
&
EVAP canister Purge
control solenoid valve(determined by

0
ECM
according tothe input signal).
ON ...EGR andEVAP canister purge
operation cut-off
OFF ...EGR andEVAP canister purge
operation notcut-off
VOLTAGE •Voltage measured bythe voltage
[V] probe.
PULSE •Pulse width, frequency orduty cycle •Only "#"isdisplayed ifitem is
[msec] or[Hz] or
measuredbythe pulse probe. unabletobe measured.

[%]
•Figures with"#"s aretemporary
ones. Theyarethesame figures as
an actual pieceofdata which wasjust
previously measured.

EC-258

TROUBLEDIAGNOSIS -General Description
Symptom MatrixChart

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1J1L1K
1T
1V1N 1P1X 1Y
Fuel Fuelpump circuit

•
•
•
•
•

•
0
0

•
0

EC-327
Fuel pressure regulatorsystem

•
••

•

••
0
0 00

•
EC-241
Injector circuit

••
•
• •

•
0

00

•
EC-324
Evaporative emissionsystem
00 0 00
0 0

0
0
0 0
EC-238
Air Positivecrankcase ventilation system
00

•
0

•
0
0 0

0
0
00
EC-240
IACV-Air regulator

•••

•

••
•
0
0
0
EC-332
Incorrect idlespeed adjustment
0

0
0

0 0 0
EC-243
IACV-AAC valvecircuit

••
•
•
•
•
•
0

•
0

•
0

EC-335
IACV-FICD solenoidvalvecircuit
0
0 0
000 00 0
C)

EC-339
Ignition Incorrectignitiontimingadjustment
00

•
0

•• •
0
0

•
EC-243
Ignition circuit

•
•
•

•
•

•
• •
•
EC-301
EGR EGRvalve
&
EVAP canister purgecon-

00

trol solenoid valvecircuit
•

•
•
•
EC-319
EGR system

0
()

•• •
0
0

•
0
0
EC-319
Main power supply andground circuit
00 0 0
C)

0 00
0
0
0
EC-286
Cooling Coolingfancircuit

0
0
0
00 00 0 000 0
EC-343
Air conditioner circuit

00 00 0
00
0 0
0
HA
section
• ;High Possibility Item

0;
Low Possibility Item

EC-274
(continued
onnext page)

TROUBLEDIAGNOSIS -General Description
Symptom MatrixChart(Cont'd)

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11\ 18
1C 1F
1H 1R
1S1M 1J1L1K

1T
1V1N 1P1X

1Y

ECCS Camshaft
positionsensorcircuit

•
0
0

••
0
000 0
EC-289
Mass airflow sensor circuit

•••
•••
0
00

•
EC-293
Heated oxygen sensorcircuit
••

••
0
00

•
EC-362
Engine coolant temperature sensor

••• ••
•

•
0

0
0

•
EC-297
circuit
Throttle positionsensorcircuit

••
••
• •
EC-309
Incorrect fhrottleposition sensor

0
•
0

0

•
0

0
EC-272
adjustment
Vehicle speedsensor circuit

000
0
EC-314
Knock sensor circuit

00
0 0
EC-306
ECM
0
0

0
0
00000
0
00 0
EC-270
Start signal circuit

00
EC-317
Park/Neutral positionswitchcircuit

000
0
EC-357
Power steering oilpressure switchcir-

0
0

EC-354
cuit
•

• ;High Possibility Item

0;
Low Possibility Item

EC-275
(continued
onnext page)

INJECTIONNOZZLE ~
Test andAdjustment (Cont'd)
LEAKAGE TEST

1. Maintain thepressure atabout 981to1,961 kPa(9.8to19.6
bar, 10to20 kg/cm
2,
142to284 psi) below initialinjection
pressure.
2. Check thatthere isno dripping fromthenozzle tiporaround
the body.
Good
Faulty
SEF674A
3.Ifthere isleakage, clean,overhaul orreplace nozzle.

Good
I

Wrong
•

EF794 SPRAY
PATTERN TEST

1. Pump thetester handle onetime persecond.
2. Check thespray pattern .
3. Ifthe spray pattern isnot correct, cleanorreplace nozzle.

EC-380

TROUBLEDIAGNOSES
Quick-glow System(Cont'd)
~
ill]

SEF941P

Ii]

~i5
Glow

Eill~
plug

0

@]Q]

2

[ill
~SEF942P INSPECTION
START
Check fuellevel, fuelsupplying system,
~Correct.
starter motor,etc.
OK

m
Check thatallglow plugconnecting
~Installproperly.
plate nutsareinstalled properly.
OK
CHECK OVERALL FUNCTION. OK
CHECK COMPONENT
Check entirequick-glow system.(Refer
---..

(Glowplug).
to "System Operation Check"onnext See
page EC-397.
page.)
NG
CHECK POWER SUPPLY ANDGROUND NG
Repair harness orcon-
CIRCUIT.
---..

nector.
(Refer to"Power Supplyandground
circuit forECM", EC-396).
OK

(!]

CHECK VOLTAGE BETWEEN GLOW NG
Check thefollowing.
RELA YAND GROUND.
---..

•7.5A fuse
1) Check voltage between terminals •
75A fusible link
G), @and ground withtester. •Harness continuity
Voltage: Batteryvoltage between
glowrelay
OK and
fuse
If NG, repair harness or
connectors.

[!1
CHECK OUTPUT SIGNALCIRCUIT. NG
Repair harness orcon-
1) Check harness continuity between
---+

nectors.
ECM terminal
@
andterminal @.
Continuity shouldexist.
OK

Ii]

CHECK HARNESS CONTINUITY NG
Repair harness orcon-
BETWEEN GLOWRELAY ANDGLOW
---+

nectors.
PLUG. 1) Disconnect ECMharness connector.
2) Disconnect glowrelay.
3) Check harness continuity between
glow relay terminal
@
and glow
plug.
Continuity shouldexist.
~OK
SEF940P
SEF939P

-"-.....
'y;-----...

Connecting platenut:J

~1.0 •1.5
N.mr-

"(0.1 •0.15 kg-m,- ""'-

8.7 -13.0 in-Ib)

~
""
.
'------

~
~
ECM
E1
CONNECTOR
II

106

II

(!]

~io

EC-394

ENGINELUBRICATION SYSTEM
SLC926.A Ifdifference isextreme, checkoilpassage andoilpump foroil
leaks.

6. Install oilpressure switchwithsealant.

ST25052000
3.
Install pressure gauge.
4. Start engine andwarm itup tonormal operating tempera-
ture.
5 .. Check oilpressure withengine running underno-load.
•

Approximate dischargepressure
kPa (bar,
kg/cm
2,
psi)
More than59(0.59, 0.6,9)
294 (2.9, 3,43)
Idle
speed
2,000
Engine
rpm

Oil
Pressure Check
WARNING: • Becareful nottoburn yourself, asthe engine andoilmay
be hot.
• Oilpressure checkshould bedone in"Neutral" gearposi-
tion.

1. Check oillevel.
2. Remove oilpressure switch.

SLC461

Oil
pressure switch

ST25051 001

~ 12.16 N.m

(1.2 .1.6 kg-m, 9-
12 ft.lb) SLC462A
SLC463A Oil
Pump

REMOVAL ANDINSTAllATION

1. Drain engine coolant andengine oil.
2. Remove upperradiator hose,drivebelts, crank pulley, tim-
ing belt covers andtiming belt.
3. Remove exhaustfronttube, timing beltpulley andrear
engine gusset(bartype), thenremove oilpan.
4. Remove oilpump assembly withoilstrainer.
5. Reinstall anypart removed. Refillengine oiland engine
coolant.
• Apply liquidgasket tooil pump.
• Apply liquidgasket tooil pan.
• Apply liquidgasket toboth ends ofoil pan oilseals.
• Install oilpan, fitting oilseals inthe correct position.

LC-27

Looseninnumerical order.
SEM546D TIMING
CHAIN @KJ
Removal (Cont'd)

• Make sureNo.1 cylinder isat TDC bylooking atdistributor
rotor position.
16. Remove distributor.
17. Remove cylinder headfrontcover.
18. Remove waterpumppulley.
19. Remove thermostat housing.
20. Remove lowerchaintensioner.
21. Remove upperchaintensioner.
22. Loosen idlersprocket bolt.
23. Remove camshaft sprocketbolts.
24. Remove camshaft sprockets.
25. Remove camshaft bracketsandcamshafts.

• These partsshould bereassembled intheir original posi-
tions.
• Bolts should beloosened intwo orthree steps.

26. Remove idlersprocket bolt.
27. Remove cylinderheadwithmanifolds.

• Head warpage orcracking couldresult fromremoving in
incorrect order.
• Cylinder headboltsshould beloosened intwo orthree
steps.

28. Remove idlersprocket shaftfromrearside.
29. Remove uppertiming chain.
30. Remove centermember.
31. Remove oilpan. Refer to"Removal" in"OIL PAN" (EM-16).
32. Remove oilstrainer.
33. Remove crankshaft pulley.
34. Support enginewithasuitable hoistorjack.

EM-21
•

I

Recess
1
diameter

I

SEM795A CYLINDER
HEAD
Inspection (Cont'd)
VALVE SEATS

Check valveseats forpitting atcontact surface. Resurface or
replace ifexcessively worn.

• Before repairing valveseats, checkvalveandvalve guide
for wear. Ifthey have worn, replace them.Thencorrect
valve seat.
• Cut with both hands touniform thecutting surface.
REPLACING VALVESEATFORSERVICE PARTS

1. Bore outold seat until
it
collapses. Setmachine depthstop
so that boring cannot contact bottomfaceofseat recess in
cylinder head.
2. Ream cylinder headrecess.

Reaming boreforservice valveseat
Oversize [0.5mm(0.020 in)]:
Unit:mm(in)
Engine model GA16DE
withoutVTC,
GA16DE withVTC
14DE and15DE
30.500 -30.516
Intake (1.2008
-1.2014)
31.500-31.516
31.500 -31.516
(1.2402-1.2408)
(1.2402 -1.2408).
Exhaust 25.500
-25.516
26.500-26.516
(1.0039 -1.0046)
(1.0433-1.0439)
.: GA 16DE without VTC
Use thevalve guide center forreaming toensure valveseatwill
have thecorrect fit.
EM-38