service MAZDA 323 1992 Suplement Owner's Manual

TROUBLESHOOTING GUlbE F3 1
14 IDLE MOVES UP AND DOWN/IDLE HUNTS
IESCRLP-
l Engine speeds up and down periodically at idle
UON
TROUBLESHOOTING HINTS]
B Idle switch (En throttle sensor) OFF at idle
3 Air leakage
3 Fuel injection amount Inconstant
. Poor contact point inside airflow meter
9 Poor ignitron
rEP[ INSPECTION
I is “00” displayed on Self-Dragnosis Checker
with ignrtron swatch ON?
SYSTEM SELECT: i I ACTfON
Yes Go to next step
NO Service Code No. displayed
Check for cause (Refer to specified
check sequence) c=;r page F3-16
“86” flashes

Check ECU terminal IF vottage csr page F345
Voltage: Battery voltage
W: SELF TEST (ignition switch ON)
SELECT SW: A
.d P/ e If OK, replace ECU CT page F3-3
c3 If not OK, check wrrjng
(ECU - Self-Dlagnosls Checker)
2 Is intake manrfold vacuum correct at idle? Yes Go to next step
Intake manifold vacuum:
More than 450 mmHg { 17.7 inHg )
No Low vacuum
Check for air leakage at intake air
system
3 Is air cleaner element clean? Yes Go to next step
No Replace abr cleaner element
4 Disconnect each hrgh-tension lead at idie; does Yes Go to next step
engine speed decrease equally at each cylinder?
No Go to Step 8
5 Are ECU terminal voltages OK? Yes Go to next step
(especially 20, 2Q, 20) -
rI7 page F345 No
Check for cause
6 Connect System Selector to diagnosis connector Yes Go to next step
and set Test Switch to SELF TEST; is ignition
timing at idle correct after warm-up?
Ignition timing (BTDC): f 0 f la
No Adjust ignition timing
._
. F3-33

TROUBLESHOOTING GUiDE F3
15 ENGINE STALLS ON DECELERATION
IESCRIP-
l Engrne unexpectedly stops running dunng or after deceleration
[iON l Idle condition normal.
TROUBLESHOOT1NG HtNTS]
ingrne speed drops too much when releasrng accelerator
3 Idle-speed misadjustment @I Loose connector disconnected by force of deceleration
3 Fuel-cut contrd malfunction
TEP lNSPECTlON ACTION
1 1s idle condition normal? Yes Go to next step
tdle speed: 800 f 50 rpm (in neutral)
NO Adjust or perform Troubleshooting, Nos.
8-I 1 “ROUGH IDLE”
(Refer to Workshop Manual
(1203-I o-89F))
2 Is “00” displayed on Self-Diagnosis Checker Yes Go to next step
with ignition switch ON?
SYSTEM SELECT: 1 NO Service Code No. displayed
Check for cause (Refer to specified
check sequence) ET page F3-16
“88” flashes
Check ECU termrnal 1 F voltage
Voltage: Battery voltage
(ignition switch ON) r;r page F346
W:SELFTEST
e If OK, replace ECU CI page F3-3
4 If not OK, check wirtng
(ECU - Self-Diagnosis Checker)
3 Does Self-Diagnosis Checker Monitor Lamp with Yes Go to next step
lgnttlon switch UN show that switches operate
correctly?
NO Lamp not ON or OFF with specified
switch
Check for cause (Refer to specified
check sequence)
W: SEtF TEST Lamp slways ON
Check wiring between
(ECU terminal 1 D - Self-Diagnosis
Checker)
4 Are ECU ?erminal voltages OK? Yes Go to next step
(especially IV, 20, 20, ZU, 2V.
and 20) v page F346 No
Check for cause
5 Check for poor connection of foltowing parts YC?S Repair or replace
l ignrtion coil l Igniter l Olstribdor l High-tension lead
NO Go to next step l Injector. l Injector resistor l Ctrcuit-opening relay . l ECU
F3-35

F3 TROUBLESHOOTING GUIDE
STEP INSPECTION ACTlON
6 Is dashpot correctly adjusted? Yes Go to next step
c
Dashpot set speed: Approx. 3,500 rpm
No Adjust dashpot
7
Try known good ECU; does condition
Improve?
w page F3-3
13EOF3-336
16 ENGINE STALLS SUDDENLY (INTERMITTENT)
DESCRIP.
l Engine intermittently stops running
TION l Before stalling, engine conditron is OK
TROUBLESHOOTING HINTS]
@ intermittently no spark or no fuel injection caused by ve-
hlcle vibratron, acceleratton, or deceleration
l Poor connectlon in wiring harness
iTEP INSPECTION ACTfON
1 Is “00” displayed on Self-Oiagnoss Checker Yes Go to next step
with lgnltlon swrtch ON?
NO Service Code No. displayed
Check for cause (Refer to speclfled
check sequence).
Note CT page F3-16
l When checking wiring harness and
connectors, tap, move, and wiggle
suspect sensor and/or harness to
recreate problem
“88” flashes ’
Check ECU terminal IF voltage
Voltage: Battery voltage
{ignition swttch ON) w page F3-45
4 If OK, replace ECU
4 If not OK, check wiring
(ECU - Self-Diagnosis Checker)
2 Check for poor connection of foliowrng parts
Yes Reparr or replace
l lgnltfon coil l Igniter l Distributor l t-flgh-tensron lead
No Go to next step l Injector l Injector reststor l Circutt-opening relay l ECU
3 Are ECU terminal voltages OK? Yes Go to Troubleshbotrng No. 2
(especially 16, 2A, 2B, and 2C) .“CRANKS NORMALLY BUT WILL NOT
w page F3-45 START (NO COMBUSTION)”
w page F3-20
Note
. No Check for cause
l When. checking voltages, tap, move, and
wiggle harness and connector to recreate
problem
* lrlrl m-7
F3-36
7.8-l

F3 CONTROL SYSTEM
Terminal voltage
Reference date
Vs: Battery voltage
‘em&al Input Output Connected to Test condition Correct voltage Remark
1A - - Battery Constant VB
For backup
18 0 Main relay
Ignition switch OFF ov
(FUEL INJ relay) -
ON
V8
1C 0 lgnitlon switch While cranking Approx. 1 OV
(START) -
Ignition switch ON ov
10 0 Self-Diagnosis Test switch at SELF TEST
Wtth Self-
Checker Lamp illuminated for 3 sec. after ignition Approx. 5V
(monitor lamp) switch OFFdON Diagnosis Check-
er and System
lamp not iltuminated after 3 sec. V8 Selector
Test switch at 02 MONITOR with engine
idling Approx. 5V
Monitor lamp illuminated
Test switch at 02 MONITOR with engine
idling Vi3
Monitor lamp not illuminated
IE - - - - - -
IF
0 Self-Diagnosis Buzzer sounded for 3 sec. after ignition
Below 2SV
l With Seif-
Checker switch OFF-+ON
Diagnosis
(service code)
Buzzer not sounded after 3 set V0 ’ Checker and
Buzzer sounded Below 2.5V System Selector
l With System
Buzzer not sounded VB Selector test
switch at SELF
TEST
1G 0 igniter tgnition switch ON
ov
-
Idte
Approx. 0.2V
It-l 0
Solenoid valve Ignition switch ON
VB
(wastegate)
Idle
Approx. 2V ’ -
II
0 Fuel pump While cranking
Approx. 1 OV
resistor/relay -
Idle
8etow 1.5V
IJ 0 NC relay Ignition switch ON
VB
A/C switch UN at idle
Below 2.5V
. NC switch OFF at idle V3
-
IK 0 Diagnosis
connector
(TEN terminal) System Selector test switch at
02 MONITOR
System Selector test switch at
SELF TEST V0
-
8elow l*OV
1L - - - - - -
I
1M - - - - -
I -
lr ‘- l-7
f L.-
r
20 20 2M 2K 21 2G 2E 2c 2A IU 1S 10 10 ltvl tK II Ir; tE 1~ IA
1
22 2x 2v 2T ZR 2P 2N 2L 25 2H 2F 20 2B 1V IT 1R tP 1N IL 1J 1H IF 1~ 1~
1
J=3-46 --
4lways 4
--
AIways 4
--
Atways 1
--
Always 1
-a
Always ’
--
Always i
-e
Always I
2.5v
Always
Always (
-m
Always f
-a
Always 1
Always (
--
Always I
2.5V
Always 1
Always t
Always
--

ENGINE ELECTRICAL SYSTEM
OUTLINE ................................................... G- 2
SPECIFICATIONS .................................... G- 2
SUPPLEMENTAL SERVICE tNFORMATlON .m G- 2
13EOGX-30 t
G

G OUTLINE, SUPPLEMENTAL SERVICE INFORMATION
SPECIFfCATfUNS
Item
8attery
Dark current Voltage
Type and capacity Engine
v
(20-hour rate)
mA BP DOHC
12
55D23L (60Ah)
Max. 20
Type Output V-A f “‘i j.,: i .:.. ‘:.. ,, j j.: i.‘: ;:;:i :j;&?.:. .: .:.
__ : . . s.i-....‘:‘:. _.. j ;.’
Regulator type Transistorized (built-in IC regulator)
Regulated voltage v
14.1-14.7
I
C?*..*rlrrrl
Brush length mm [rn] }e 21.5 (0.846)
8.0 10.315)
I Drive belt deflection I 5.5-7.0 { 0.22-0.27 )
mm (intB8N (lOkgf,22Ibf) usea 6.0-7.5 (0.24-0.29 1
Limit 8.0 (0.311
, Type Direct
Starter Output v*$# : : ;..;. ‘:‘.. ._ .; : :‘: 7.:
.. .::“:.:j 1 ,5
. . . . .j$$g;g$y .“. :yy
Brush length mm {in] - Standard 17 [0.67]
Minimum
11.5 IO.4531
Dlstnbutor soark advance Electronic soark advance (ESA)
@EN termind of diagnosis connector grounded) II) f lo
I 1 Prtmary coil
**4 nn*
Ignltbon co11 Reststance 3
(at 20°C [68*F])
in IO-16 kQ lgnrtlon timing BTDC f ar
wrndfnb
I
Secondary 1
coil WindIn.. v.0 I
--v.yy 1
Spark plug NGK
NIPPONDENSU
Firing oraer
*Standard pfug
SUPPLEMENTAL SERVICE INFORMATION
The following points shown in this section are changed in comparison with 323 Workshop Manual
(1203-l O-89F) and 323 Workshop Manual Supplement (I 275-l O-91 C).
l Alternator . Starter
Specifications Specifications
l Spark plug
Specifications
13EGGX-303
G-2

OUTLCNE
OUTLDJE OF CONSTRUCTION
. The 323 GT-R is added to the 323 BP DOHC turbo model lineup.
l All GT-R modek are equpped with the G25MX-R (GSMX-R) manual transaxle and transfer unit.
l The transaxle and transfer unit is the same as in the 323 BP DOt-tC turbo models, except that the speedo-
meter gear ratio is changed.
Note
l Transaxk code is as shown.
G25MX-R
--r--r T
13EOJ3-302
SPECIFtCATIONS
Transaxle and Transfer Unit
Item
Transaxte control
Synchromesh system
Gear ratio Model/Engine
Forward
Reverse
1 st
2nd
3rd
4th
1 5th
Reverse
FInal gear rat10 I
Speedometer gear ratio f
Type
Number of rrng Outer
gear teeth
Inner
Center diff erentlal Number of plnion Outer
gear teetn
Inner
Numbef of sun Pinion gear side
gear teeth
idler gear side
Number of idler gear teeth
Grade
Oh Vtscosity All-season
Above -18OC { O°F 1
Capacity t ( LB qt, Imp qtl 323 GT-R
0.717 I Other
3.166 323 4WD
BP DOHC turbo
Floor shift
Synch romesh
Setecttve slrdrng and synchromesh
3.454
1.833
I.310
0.970
4.214
1.045
I 1 .OUU
Pfanetary carrier
59
I
75
14
14
43
43
37
API service U-4
ATF Dexron@II or M-III
SAE 75W-90
2.6 (2.7, 2.2)
13EOJ3-303
Transfer Carrier
Number
Orl of
- teeth
Grade
Viscosity
CaDacitv Rung gear
Pinron gear
Above -18OC fO°F]
Below -t8OC I PF 1
L I US at. imn at 1 37
31
API service ‘Gt-5
SAE 90
SAE BOW
0 5 10.53. 0.44 t
J3-2 ._

FRONT AND REAR AXLES
INDEX ..*** . . . . . l . . . ...* . . . . . . . ..**...I* . . . . . .*..*.* . . . . . . . M- 2
1 FEATURES 1
OUTIJNE .................................................
M- 3
OUTLINE Of CONSTRUCTION
................. M- 3
SPECIFICATIONS ....................................
M- 3 t
SUPPLEMENTAL SERVICE INFORMATION.. M- 4
FRONT AXLE
l ,..,..,..............,.....*.............. M- 5
PREPARATION . . . . . . . . ..*.*...........m..........*... M- 5
WHEEL HUB, STEERING KNUCKLE . . . ..I.... M- 6
REAR AXLE *...............*............................ M-l 1
PREPARATION
l . . . . ..*..*...................*..*..... M-l 1
WHEEL HUB, KNUCKLE . . . . . . . . . . . . . . . . . . . . . . . . .
M-12
)I
13EOMX.301
q

OUTLINE M
OUTttNE
OUTLiNE OF CONSTRUCTION
l TKe construction and operation of the front and rear axles are basically the same as previous models.
l Because of the use of a high power engine, the following parts are modified to improve rigidity.
(I) Larger front and rear bearings are used.
(2) Larger front and rear knuckles are used.
(3) A five-stud wheel hub is used.
l An ice scraper is newly installed on the rear knuckle to prevent ice from building up on the brake caliper.
(Refer to page M-14.)
13EOMX-303
SPECIWCATIONS
Hem Speclficatlons
Front driveshaft
Joint type inside
Double offset joint
Outsrde Bell joint
Length of joint (between center of joint) Right
392 I15.4)
mm lrn)
Left 306 IO.831
Shaft drameter mm fin)
21.0 (0.83)
Rear driveshaft
Inside
Joint type Double offset joint
Outside 5ell joint
Length of joint (between center of joint) Right
519.5 [ 20.5 1
mm [in]
Left.
489.5 ( 19.3 )
Shaft diameter mm (in) 21.0 [O&3]
Joint shaft
I
Length of joint
Shaft diameter
Front axle
mm jin] 357.2 114.11
mm {in] 21.0 {0.83]
4
Bearing play axial direction mm tin)
0.05 IO.002 ]
I
Rear axle
Bearing play axial direction mm (inj
Rear dtfferentlal (viscous limited slip differential) 0.05 (0.002 1
Reduction aear Hypoid gear
Differentral gear
Drfferential ratio Straight bevel gear
3.909
Number of teeth Ring gear .
Drive binion aear
43
If
Fluid I Grade API Service GL-5
Above -t8*C (O*F) SAE 90
Viscosity .
Below -18*C i O*Fl SAE 8OW
1 I Capacity L I US qt, imp stl 1 0.65 !O.SS, 0.571
1
13EOMX-304
M-3

M SUPPLEMENTAL SERVICE INFORMATION
SUPPLEMENTAL SERVICE INFORMATION
The foIlowIng points in this section are changed in comparison with Mazda 323 Workshop Manuals
(1206-f O-89F) and (1229-l O-89L).
Front axle
l Removal I Inspection I Installation
l Disassembly I Inspection / Assembly
Rear axle
l Removal / Inspection I Installation l Disassembly / Inspection I Assembly
13EOMX-305
t
,
c
.
c!
M-4
.
r&
-s
FRC
PREF
SST
-m
49 0’
Pulle
--
49 Gl
Atkd
(Part
49 Gc
--
49 FC
I n.stail beam
--
49 F3
Attact
:Part
t 49 FO
--
49 Frl
4ttac P 58 8 : Part < $9 Fcl,
--
a9 G3
nstallt