1995 NISSAN ALMERA N15 Throttle valve

SERVICEDATAANDSPECIFICATIONS (SOS)
General Specifications

PRESSURE REGULATOR
Fuel pressure atidling
kPa (bar, kg/cm
2,
psi)
Vacuum hoseisconnected
Vacuum hoseisdisconnected Approximately
235 (2.35. 2.4.34)
Approxi mately
294 (2.94, 3.0,43)
Idle speed'1
No-load'2 rpm
(in "N" position) 800:1:50
Inspection
andAdjustment
FUEL PUMP

Resistance [at25'C (77'F)] n
Approximately 0.2-5.0
Air conditioner: ON
(in "N" position)
Ignition timing
Throttle position sensoridle
position V850
ormore

IACV-AACVALVE

15':1:2' BTDC
Resistance[at25'C (77'F)] n
0.35 -0.65 Approximately
10.0
'1: Feedback controlled andneeds noadjustments
'2: Under thefollowing conditions:
• Air conditioner switch:OFF
• Electric load:OFF(Lights, heaterfan
&
rear defogger)

IGNITION COIL INJECTOR

Resistance [at25'C (77'F)) n'
1_0_-_1_4 _

RESISTOR

Primary voltage
Primary resistance
[at 25'C (77'F))
V

12

0.5 -1.0 Resistance
[at25'C (77'F)) kn ApproXimately 2.2
Secondary resistance
[at 25'C (77'F))
kn
Approximately
25

THROTTLEPOSITIONSENSOR
MASS AIRFLOW SENSOR

Supply voltage
Output voltage
V
V
Battery
voltage (11-14)

1.3 -1.7'
Throttle
valveconditions
Completely closed
Partially open
Completely open Resistance
kn
[at 25'C (77'F)]
Approximately 1
1 - 10
Approximately 10
': Engine iswarmed upsufficiently andidling under no-load.

ENGINE COOLANT TEMPERATURE
SENSOR

Temperature
'c
('F)

20 (68)

50 (122)
90 (194) Resistance
kn
2.1-2.9
0.68 -1.00
0.236 -0.260

HEATED OXYGEN SENSOR HEATER

Resistance [at25'C (77'F)] n
I
3.3-6.3

EC-418

OUTERCOMPONENT PARTS

tOJ:
N.m (kg-m, ft-Ib)

iii :
N'm (kg-m, in-Ib)
Tighten innumerical order.
Engine

A

Iront
y

*
Throttle bodyboltstightening procedure

1) Tighten allbolts to9to 11 N.m (0.9 to
1.1
kg-m, 6.5to8.0 fl-Ib)
2) Tighten allbolts to18 to22 N'm (1.8to2.2 kg-m, 13to16 ft-Ib)
Tighten innumerical order.

GA16DE
WITHOUT VTe,14DE AND15DE

SEC. 140-147-163-164
GA15DE

SEM220F

CD
Throttle position sensor
@ Mass airflow sensor

@
IACV-AAC valve
@ IACV-FICD solenoidvalve
@ Throttle body @
Engine coolant temperature
sensor

IJ)
Airrelief plug

@
Injector
@ Injector tube
@l

Pressure regulator

@
EGR valve (GA15DE

M/T
model only)
@ Intake manifold
@ IACV-AAC valve(GA15DE
engine models only)

EM-10

COMPRESSIONPRESSURE

20
mm
(O.79 In)dls.

Use compressor testerwhose end(rubber
portion) isless than 20mm (0.79 in)dia.
Otherwise, itmay becaught bycylinder
head during removal.

SEM387CMeasurement
ofCompression Pressure

1. Warm upengine.
2. Turn ignition switchoff.
3. Cut fuel line.
Release fuelpressure.
Refer to"Releasing FuelPressure" inEC section. •
4. Remove allspark plugs.
5. Disconnect distributorcentercable.
6. Attach acompression testertoNO.1 cylinder.
7. Depress accelerator pedalfullytokeep throttle valvewide
open.
8. Crank engine andrecord highest gaugeindication.
9. Repeat themeasurement oneach cylinder asshown above.

• Always useafully-charged batterytoobtain specified
engine revolution.
Compression pressure:
Unit:kPa(bar, kg/cm
2,
psi)/rpm
Compression Differencelimit
ratio
Standard
Refer toSOS Minimum
betweencylin-
(EM-155). ders
9.5 1,324
(13.24, 1,128(11.28,
13.5, 192)/350 11.5,164)/350
9.8 1,353
(1353, 1,157(11.57, 98(0.98, 1.0,14)/
13.8, 196)/350 11.8,168)/350
350
9.9 1,373
(13.7, 14, 1,177(11.8,12,
199)/350 171)/350

10.
If
compression inone ormore cylinders islow:
a. Pour asmall amount ofengine oilinto cylinders through
spark plugholes.
b. Re-test compression,

• Ifadding oilhelps compression, pistonringsmaybeworn
or damaged. Ifso, replace pistonringsafterchecking pis-
ton.
• Ifpressure stayslow,avalve maybesticking orseating
improperly. Inspectandrepair valveandvalve seat.Refer
to SOS (EM-156, 159).Ifvalve orvalve seatisdamaged
excessively, replacethem.
• Ifcompression stayslowintwo cylinder thatarenext to
each other:
The cylinder headgasket maybeleaking, or
both cylinders mayhave valve component damage.
Inspect andrepair asnecessary.
EM-15

OUTERCOMPONENT PARTS
SEC.

to
18
to
22
N'm

(1.8
to
2.2 kg-m,

Tighten innumerical order.13to16ft-Ib).
~
2.9.3.8

(0.30 -0.39,
26.0 -33.9.)

1

I
{O.,'OgO

J{"ogO

?

~ ;N'm (kg-m, ft-Ib)

~ :N.m (kg-m, in-Ib)

SEM232F
G) Injector

@
Pressure regulator

@
Intake manifold
@ EGR tube
@ EGR valve
@

EGRC-BPT valve
(J) Intake manifold collector
@ Rod
@ Accel-drum unit

@)
Throttle position sensor
EM-60 @
Throttle body

@
IACV-air regulator

@
IACV-AAC valve

@
IACV-FICD solenoidvalve

COMPRESSIONPRESSURE

Measurement ofCompression Pressure

1. Warm upengine.
2. Turn ignition switchoff.
3. Release fuelpressure.
Refer to"Releasing FuelPressure" inEC section.
4. Remove allspark plugs.
5. Disconnect distributorcoilconnector.

20
mm (0.79
In)dls.

Use compressor testerwhose end(rubber
portion) isless than 20mm (0.79 in)dia.
Otherwise. itmay becaught bycylinder
head during removal.

SEM387C6.
Attach acompression testertoNO.1 cylinder.
7. Depress accelerator pedalfullytokeep throttle valvewide
open.
8.' Crank engine andrecord highest gaugeindication.
9. Repeat themeasurement oneach cylinder asshown above.

• Always useafully-charged batterytoobtain specified
engine speed.
Compression pressure:kPa(bar, kg/cm
2,
psi)/300 rpm
Standard 1,226 (12.26, 12.5,178)
Minimum 1,030 (10.30, 10.5,149)
Difference limitbetween cylinders
98 (0.98, 1.0,14)

10. Ifcompression inone ormore cylinders islow:
a. Pour asmall amount ofengine oilinto cylinders through
spark plugholes.
b. Retest compression.
• If
adding oilhelps compression, pistonringsmaybeworn
or damaged.
If
so, replace pistonringsafterchecking pis-
ton.
• Ifpressure stayslow,avalve maybesticking orseating
improperly. Inspectandrepair valveandvalve seat.Refer
to
50S.
If
valve orvalve seatisdamaged excessively,
replace them.
• There isleakage pastthegasket surface ifthe following is
observed. Compression intwo adjacent cylinders islow and
adding oildoes notimprove compression.
If
so, replace
cylinder headgasket.

EM-62

..:;:r--
Coupling

Ii!
Grease
Rod

Throttle body

Coupling
LCOUPJing

~ 9

Ii!
Grease ~
When closed 4a'"link

SEM205D

Tr;rn ~Adjusting serew
_ /- Aeeel-drum

"""7'i'i\.

Stopperlever

SEM208D ACCEL-DRUM
UNIT
Adjust accel-drum unitwhenever anyofthe following parts
(new orold) areinstalled:
• Accel-drum unit
• Throttle chamber
• Rod (Always replacewithanew oneafter removal.)

1. Install accel-drum unitand throttle chamber.
2. Apply grease allover theinside ofthe rod couplings .

Use genuine Nissangrease orequivalent.

3. Insert eachonecoupling toball links ofthrottle chamber
and accel-drum unit.
4. Loosen locknut.
5. Loosen adjusting screwenough.
6. Manually turnaccel-drum untilthrottle valveisfully open.
• Check thatstopper leverisnot touching adjusting screw.
If itis, loosen adjusting screwtomaintain clearance
between thetwo.
7. Turn adjusting screwuntil
it
touches stopperlever.
8. Back offaccel-drum.
Turn adjusting screw3
rotations clockwise. Lock
nut 9.
Turn adjusting screw3rotations clockwise.
10. Tighten locknut.

~ 4.0-5.4 N.m
(0.41 -0.55 kg-m, 35.6-47.7 In-rb)
SEM209DA
EM-84

HOWTOREAD WIRING DIAGRAMS
Wiring Diagram Codes(CellCodes)

Use thechart below to'find outwhat each wiring diagram code•
stands for,

Code Section WiringDiagram Name
AACIV ECIACV-AAC
Valve
ABS BR
Anti-lock BrakeSystem
A/C HAManualAirConditioner
A/CCUT ECAir
Conditioner CutControl
A/T ATAutomatic Transmission
AIM ELHeadlamp System
AIRREG ECIACV-Air Regulator
AT/C ECA/TControl
AUDIO ELAudio
BACK/L ELBack-up Lamp
CHARGE ELCharging System
CHIME ELWarning Chime
CMPS EC
Camshaft PositionSensor
COOllF ECCooling
FanControl
DEF ELRearWindow Defogger
D/LOCK ELPowerDoorLock
DTRL ELHeadlamp
-With Daytime Light
System
ECTS ECEngine
Coolant Temperature
Sensor
EGR andcanister ControlSolenoid
EGRCIV EC
Valve
FCUT ECFuel
CutSolenoid Valve
F/FOG ELFront
FogLamp
FICO ECIACV-FICD
SolenoidValve
F/PUMP ECFuel
Pump
GLOW ECQuick-glow
system
H/LAMP ELHeadlamp
-Without Daytime
Light System
H/SEAT ELHeated
Seat
HEAT HA
Heater
HLC ELHeadlamp
Washer
H02S ECHeated
Oxygen Sensor
HORN ELHorn,
Cigarette Lighter,Clock
IATS ECIntake
AirTemperature Sensor
IGN/SG ECIgnition
Signal
ILL ELIllumination
INJECT ECInjector
INT/L ELInterior,
SpotandTrunk Room
Lamps Code
Section WiringDiagram Name
KS ECKnock
Sensor
LKUP ECTorque
Converter ClutchSolenoid
Valve
LOAD ECLoadSignal
MAFS ECMass
AirFlow Sensor
MAIN ECMain
Power Supply andGround
Circuit
METER ELSpeedometer,
Tachometer,Temp.
and Fuel Gauges
MIL ECMIL,
Data LinkConnector For
CONSULT
MIRROR ELDOOR
MIRROR
NATS ELNISSAN
ANTI-THEFT SYSTEM
02S ECOXYGEN
SENSOR
EC EVAP
CANISTER PURGECON-
PGCIV TROLSOLENOID VALVE
PLA ECPARTIAL
LOADADVANCE CON-
TROL
EC PARK/NEUTRAL
POSITION
PNP/SW SWITCH
POWER ELPOWER
SUPPLY ROUTING
POWER STEERING OILPRESSURE
PST/SW EC
SWITCH
R/FOG ELREAR
FOGLAMP
SROOF ELSUN
ROOF
SUPPLEMENTAL RESTRAINTSYS-
SRS RS
TEM
S/SIG ECST
ART SIGNAL
START ELSTARTING
SYSTEM
STOP/L ELSTOP
LAMP
TAllIL ELCLEARANCE,
LICENSE,ANDTAIL
LAMPS
TPS ECTHROTTLE
POSITIONSENSOR
TURN SIGNAL ANDHAZARD
TURN EL
WARNING LAMPS
VSS ECVEHICLE
SPEEDSENSOR
VTC ECVTC
SOLENOID VALVE
WARN ELWARNING
LAMPS
WINDOW ELPOWER
WINDOW
WIPER ELFRONT
WIPERANDWASHER
WIP/R ELREAR
WIPER ANDWASHER
GI-17

SAEJ1930 TERMINOLOGY LIST
SAE J1930 Terminology List

All emission relatedtermsusedinthis publication inaccordance withSAE J1930 arelisted. Accordingly,
new terms, newacronyms/abbreviations andoldterms arelisted inthe following chart.

"':Not applicable
NEW TERM NEW
ACRONYM /
ABBREVIATION OLD
TERM
Absolute pressure sensor

'" '"

Air cleaner
ACLAircleaner
Barometric pressure
BARO
."

Barometric pressuresensor-BCDD
BAROS-BCDD BCDD
Camshaft position
CMP
'"

Camshaft positionsensor
CMPS Crankanglesensor
Carburetor CARBCarburetor
Charge aircooler
CACIntercooler
Closed loop
CLClosedloop
Closed throttle position switch
CTPswitch
Idleswitch
Clutch pedalposition switch
CPPswitch Clutchswitch
Continuous fuelinjection system
CFIsystem
'"

Continuous trapoxidizer system
CTOXsystem
...

Crankshaft position
CKP
'"

Crankshaft positionsensor
CKPS
~.**

Data linkconnector
DLC
,

..

Data linkconnector forCONSULT
DLCforCONSULT DiagnosticconnectorforCONSULT
Diagnostic testmode
DTMDiagnosticmode
Diagnostic testmode selector
DTMselector Diagnosticmodeselector
Diagnostic testmode I
DTMI ModeI
Diagnostic testmode II
DTMII ModeII
Diagnostic troublecode
DTC Malfunctioncode
Direct fuelinjection system
DFIsystem
..

,

Distributor ignitionsystem DIsystem Ignitiontimingcontrol
Early fuelevaporation-mixture heater
EFE-mixtureheater Mixture
heater
Early fuelevaporation system
EFEsystem

.
Mixture
heatercontrol
Electrically erasableprogrammable readonly
EEPROM
'"

memory
Electronic ignitionsystem EIsystem Ignitiontimingcontrol
Engine control module ECMECCScontrol unit
Engine coolant temperature ECTEngine
temperature
Engine coolant temperature sensor ECTS Engine
temperature sensor
Engine modification EM
'"

Engine speed RPM
Enginespeed
Erasable programmable readonlymemory EPROM
'"

Evaporative emissioncanisterorCanister EVAP
canister orCanister Canister
Evaporative emissioncanisterpurgecontrol EVAP
canister purgecon-
Canister controlsolenoid valve
solenoid valve trol
solenoid valve

GI-45
•