check engine MAZDA 323 1992 Suplement Owner's Manual

FUEL SYSTEM F3
13EOF3.34
c I 13EOF3-364 FUEL PUMP CONNECTOR
/
!NSTALL CLAMPS
I
l nspection
1, Disconnect the resistor/relay connector.
2. Ground the fuel pump resistor relay terminal D.
3. Apply battery voltage and check for continuity as shown.
Terminal C
Continuity between A and I3
Battery voltage applied NO
ov Yes
4. Measure the resistance between terminals E and F.
Resistance : 0.38--0.42Q (at 2O*C {6S°F 1)
PRESSURE REGULATOR
Inspection
Fuel line pressure
Warning
l Before performing the following operation, release
the fuel pressure from the fuel system to reduce the
possibility of injury or fire. (Refer to page F3-21.)
1. Disconnect the negative battery terminal.
2. Connect a fuel pressure gauge between the fuel filter and
the fuel main hose. (install clamps as shown.) , .
I
3. Connect the negative battery terminal.
/t.
4, Start the engine and run it at idle.
5. Measure the fuel line pressure.
Fuel line pressure:
206-255 kPa [ 2.1-2.6 kgflcml, 30-37 psi )
6. Disconnect the upper vacuum hose from the pressure regu-
lator and measure the fuel line pressure.
Fuel line pressure:
304-392 kPa (3.1-4.0 kgf/cm2, 44-57 psi )
F3-41

. !I11
PRESSURE REGULATOR CONTROL SYSTEM F3
13EOF3353
(PRC HIGH TEMP.)
13EOF3-35:
BAl-fERY VOLTA
PRESSURE REGULATOR CONTROL
SYSTEM
SOLENOID VALVE (PRESSURE REGULATOR CONTROL)
Inspection
On-vehicte
1. Start the engine and run it at idle (cold engine).
2. Disconnect the vacuum hoses from the pressure regulator,
and verify that vacuum is felt at each hose.
3. Ground the solenoid valve terminal wire (G/O...low temp.
and G. ..high temp.) by using a jumper wire, and verify that
no vacuum is felt.
4. If vacuum is not as specified, check the solenoid valve.
Solenoid Valve (high and low temp.)
1, Disconnect the vacuum hose from the solenoid valve and
the vacuum pipe..
2. Blow through the solenoid valve from port A.
3. Verify that air flows from port B.
4. Disconnect the solenoid valve connector.
5. Connect battery voltage and a ground to the terminals of
the solenoid v&e.
6. Blow through the solenoid valve from port A.
7. Verify that air flows from the valve air filter.
8. If not as specified, replace the solenoid valve.
.
F3-43

CONTROL SYSTEM F3
hT==TdI ,
USE CONNECTOR A 1
L
93GOF3-787 ENGINE CONTROL UNIT (ECU)
Inspection
1. Disconnect the ECU connectors.
2. Connect the SSTs {Engine Signat Monitor and Adapter) to
the ECU as shown.
3. Place the SST (Sheet) on the Engine Signal Monitor.
4. Measure the voltage at each terminal.
(Refer to pages F3-46 to F3-53.)
5. If any ECU terminal voltage is incorrect, check the related
input or output devices and wiring. If no problem is found,
replace the ECU. (Refer to page F3-2.)
t
1 13EOF3-358
r
TERMINALS
f. -I AANDB . Caution l Never apply voltage t.o terminals A and 8 of the SST.
! :OF3-359
F3-45

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
--

P CONVENTIONAL BRAKE SYSTEM
1 t3EOPX.314
@ 66.7 kPa
Iso0 mmHg.
19.7 inHg)
16EOPX-05t
1
13EOPX.315
P-8
POWER BRAKE UNIT
Quick Inspection (On-vehicle)
Power brake unit function check
(Method-using tester)
Connect the SST, vacuum gauge A, and pedal depression
force gauge B as shown in the figure. After bleeding the
air from the SST, conduct the test as described in the 3steps
below.
Note l
Use commercMty available vacuum gauge and ped.
al depression force gauge.
a) Checking for vacuum loss
Unloaded condition
1. Start the engine.
2. Stop the engine when the vacuum gauge reading reaches
66.7 kPa (500 mmHg, 19.7 inHg ) .
3. Observe the vacuum gauge for 15 seconds. If the gauge
shows 63.3-66.7 kPa [475--500 mmHg, 18.7-19.7
inHg 1, the unit is operating.
Loaded condition
1. Start the engine.
2. Depress the brake pedal with a fdrrce of 196 N I20 kgf,
44 Ibfj.
3. With the brake pedal depressed, stop the engine when the
vacuum gauge reading reaches 66.7 kPa {SO0 mmlig,
19.7 inHg].
4. Observe the vacuum gauge for 15 seconds. If the gauge
shows 63.3-66.7 kPa I475--500 mmHg; 18.7-l 9.7
inHg 1, the unit is operating.
b) Checking for hydraulic pressure
1, If with the engine stopped (vacuum 0 kPa (0 mmHg, 0
hltlg 1) the fluid pressure is within specification, the unit is
operating.
Pedal force N fkgf. Ibf]
Fluid pressure kPa (kgf/cm2, psi)
196 LZO. 441 1080 111. 1561 min.
2, Start the engine. Depress the brake pedal when.the vacu-
urn reaches 66.7 kPa 1500 mmHg, 19.7 intlg 1. If the flu-
id pressure is within specification, the unit is operating.
Pedal force N 1 kgf, fbf I Fluid pressure .kPa { kgflcm’. ps 1
196 I20,441 6670 {68, 967
1 min.
-- WlTHOU
&
d
I=-
-
1 MASTER CYUh
.
i_

TECHNICAL DATA TD
Engine
Item BP DOHC turbo
Engine oii
Total (dry engine} 4.0 14.2, 3.5)
Capacity
L IUS qt, Imp qtl Ott pan 3.6 (3.8, 3.2)
011 filter 0.17 (0.18, 0.15)
Grade API Service SD, SE, SF or SG
Above 30°C (86*F) SAE 40
O*C-40*C ~32°F-1040F 1 SAE 30
-1 OOC--2O*C [ 14OF-68OF ] SAE 2OW-20
Viscosity Above -10% [14*Fj SAE ZOW-40 or 2OW-50
number -25*C--3O*C I-1 3OF-86OF ] SAE 1 OW-30
Above -25OC (-13*F1 SAE low-40 or low-50
Below O*C (32*F] SAE 5W-30
Below -2O*C I-4*F] SAE 5W-20
COOLING SYSTEM
L
item
Zooling method - 1 Engine
BP DUHC turbo
I Water-cooled, forced crrcutation
water pump
Type
mpeller diameter
Number of impeller blades
Speed ratio
tiater seal type
rhermostat
bfpe
Opening temperature
Full-open temperature
Full-open lift mm [in)
OC (OF)
*C j*FJ
mm (in] Centrifugal, V-belt driven
75 12.95)
6
1 : 1.05
Unified mechanical seal
Wax, two-stage
Marn: 86.5-89.5 [ 788-I 93 1
Sub: 83.5-86.5 [182-i 88)
loo (212)
Main: 8.0 (0.31 1 min.
Sub: 1.5 IO.061 min.
Radbtor
Type
Cap valve opening pressure kPa { kgflcm2, psi)
Cooling circuit checkrng pressure kPa ( kgflcm2, psi 1
Cooling fan
Type
Number of blades
Outer diameter mm {in 1
Capacity w-v
Current A
Water thermoswitch
OFF-+ON “C 1°F) 1
Radiator thermoswitch
OFFdON OC (OF]
Coolant
Capacity LWS qt,
Imp qt) Coolant protection
Above -16*C (3OF]
Antifreeze solutron
.Above -26*C t-1 5*F ) -
Above -4UOC I-40°F) Corrugated fin
74-103 {0.75--1.05, 11-15)
103 11.05, 15)
Electric
5
340 (13.41
160-12
Hi: 13.3+ 10% max., Lo: 8.8+ 10% max.
97 f207)
105 [221)
6.0 16.3, 5.3)
Specific gravity at 20*C (68*f)
1.054
1.066
1.078 -.ep
1

ST
SPECIAL TOOLS
c 1
GENERAL lNFORMATlON ........................ ST- 2
ENGINE
..................................................
ST- 3
CLUTCH AND MANUAL TRANSAXLE
........
ST- 4
FRONT AND REAR AXLES.
...................... ST-
5
STEERING ..............................................
ST- 6
BRAKING ...............................................
ST- 8
FRONT AND REAR SUSPENSION..
........... ST- 9
CHECKER AND OTHER EQWPMENT..
.......
ST-IO
13ESTX-301
c I
__
c I

ST SPECIAL TOOLS
GENERAL INFORMATION
The letters A and B in the priority column indicate the degree of importance of each tool.
A. . . . . Indispensable
The toots ranked A in this list are indispensable for performing operations satisfactorily, easily, safely, and
efficiently. It is, therefore advisable that all service shops have these tools.
B.. . . .Selective
The tools in this list are not as necessary as tools ranked A, but all service shops should have these tools
to perform repairs more easily and more efficiently.
Note
l When ordering toot sets that consist of several tools, check the List in the Parts Catatogue
to make sure that some tools are not duplicated in other sets you may already have. tf they
are, instead of ordering the set, order only those new tools that are needed.
l There are new SST explanations in this tool chart.
These tools are indicated by “NEW SST” in description column.
13ESTX.302 49 OlC7
Engine
49 LOY~
Hanger
engiN
49 063
Arm, \I lifter
49
BO
Pivot
. .-
49 Sl
Rem
aeaf
Brakl

PARTS INDEX
PARTS NAME PAGE
PARTS NAME PAGE
I KNOCK CONTROL UNIT...................30
KNOCK SENSOR.........................30 .82
.82
.82
.82
.82
.32
.26
.72
a LICENSE PLATE LIGHT...............48.5 0
B MAIN RELAY(FUEL INJ)
............... ..2 8
1 NEUTRAL SWITCH.......................3 2
$3 OIL PRESSURE SWITCH..................3 8
OXYGEN SENSOR........................2 8
J PANEL LIGHT CONTROL..................7 0
PARKING BRAKE SWITCH.................3 8
POSITION LIGHT....................44,5 0
POWER DDOR LOCK SWITCH...............7 6
POWER DDOR LOCK TIMER UNIT...........7 6
POWER DOOR LOCK ACTUATOR.............7 6
POWER OUTSIDE MIRROR MOTOR...........7 0
POWER OUTSIDE MIRROR SWITCH..........7 8
POWER STEERING PRESSURE SWITCH.......3 2
POWER WINDOW MAIN SWITCH.............7 4
POWER WINDOW MOTOR...................7 4
e
1 BACK-UP LIGHT SWITCH.................60
BACK-UP LIGHT....
BLOWER MOTOR.....:::::::::::::::::::’
.E
BLOWER SWITCH........................62
BRAKE FLUID SWITCH...................38
POWER WINDOW SWITCH..................74
J D REAR FOG LIGHT RELAY.
REAR FOG LIGHT SWITCH
REAR FOG LIGHT.......
REAR SPEAKER......... ................
................ zz
................
52
................
................ E
................ 42
............... .
..: 2
.Riik+‘::::::::..6 4
SWITCH.........6 4
................
................ :z
................ 62
............. 44, 48
I CIGARETTE LIGHTER..
CIRCUIT OPENING REL
CLUTCH SWITCH...
COMBINATION SWITCH:
CONDENSER.......
COOLING FAN MOTOR::
COOLING FAN RELAY..
COURTESY LAMP.....,
CPU................ . .64
/ii’::::::::::::::..2 8
..................
... 44, 46, 48, 50, 52, %
..................
.................. 2:
..................
.................. 2:
............... 42, 66
B DIAGNOSIS CONNECTOR.....
DIGITAL CLOCK...........
n-rnnc ............
............ E
............
............ %
............
............ ZE
TURN LIGHT....
WASHER MOTOR.. REAR
REAR
REAR
REAR
REAR
REAR
REAR
REAR
-ih .ER
-ER
RESISTOR ASSEMBLY..
RUNNING LIGHT RELAY
il SEAT WARMER...........
SEAT WARMER REALY.....
SEAT WARMER SWITCH....
SHORT CONNECTOR.......
SLIDING SUNROOF MOTOR.
SLIDING SUNROOF RELAY.
SLIDING SUNROOF SWITCH
SLIDING SUNROOF.......
SOLENOID RESISTOR.....
SOLENOID VALVES
PRC HIGH TEMP........
PRC LOW TEMP.........
PURGE CONTROL........
WASTEGATE............
SPEED SENSOR..........
SPOT LAMP.............
STARTER...............
STOPLIGHT CHECKER..... ........
........
........
........
........
........
........
........
........ ....... 84
.......
....... ::
.......
.... 66.2
.......
.... 66, Ei
.......
....... ........
........
........
........
........
........
........
........
........
........
.
. . . . . . z:
. . .
. . . . zoo
. 1 .
. . . . E
. . . .
56, ::
. . 56, 58
. . 56, 58
“J.“LJL................. DISTRIBUTOR ............
DOOR SPEAKER ........... .
DOOR SWITCH........: .... 8
3 ENGINE CONTROL UNIT............ ,28, 30. 32
3 FLASHER UNIT...
FRONT FOG LIGHT
FRONT FOG LIGHT
FRONT FOG LIGHT
FRONT SIDE TURN
FRONT TURN LIGH
FUEL METER.....
FUEL PUMP REALY
FUEL PUMP UNIT.
FUEL PUMP......
-. -- ............
............ 22 .
. . RiiA‘i 1
SWITCH
i&ii 1 ............ 52
............ .
............ 22
.....................
..................... %
.....................
..................... %
..................... 28 -
tust ....................
B
G SENSOR ................
13 HAZARD SWITCH............
HEADLIGHT CLEANER MOTOR..
HEADLIGHT CLEANER SWITCH.
HEADLIGHT LEVELING ACTUAT
HEADLIGHT LEVELING SWITCH
HEADLIGHT RELAY..........
ENI- IGHT. . . . . .
HORN RELAY...............
HORN SWITCH.............. ...
40, 46, 52, 64
: ........... 82
............ 54
........... .
..: ii
&::::::::..4 6
HORN..................I 1
HYDRAULIC UNIT ..........
01 IC REGURATOR ............
IG KEY CYLINDER LAMP ....
IGNITER .................
IGNITION COIL ...........
ILLUMINATION LAMP .......
AUDIO SYSTEM ...........
BLOWER SWITCH .......... ............
46
............ 44
......... 44, 46
............
............ E
............
............ E
...........
........... 2:
...........
........... 2
...........
........... 5:
...........
........... 5:
...........
........... 5::
...........
........... 5:
..........
.%
;ci:::::::.;;
........... CIGARETTE LIGHTER: ;.I:;::
FRONT FOG LIGHT SWITCH...
HAZARD SWITCH...........
HEADLIGHT CLEANER SWITCH:
HEADLIGHT LEVELING SWITCH
INSTRUMENT CLUSTER.......
REAR FOG LIGHT SWITCH....
REAR WINDOW DEFROSTER SW1
SEAT WARMER SWITCH.......
INDICATOR LAMP...........
...........
........... 33:: ...........
30 STOPLIGHT SWITCH ......
STOPLIGHT .............
0 TAChOMETER...........................3 8
TAILLIGHT.........................48,5 0
TEMP METER...........................3 8
THROTTLE SENSOR......................3 2
TRANSFER PUMP........................2 8
TRUNK COMPARTMENT LAMP SWITCH........6 8
TRUNK COMPARTMENT LAMP...............6 8
TURN SWITCH..........................5 4
q WARNING LAMP.........................3 8
WASHER LEVEL SENSOR..................3 8
WATER THERMOSENSOR................30,3 8
WATER THERMOSWITCH................... 6
WINDSHIELD WASHER MOTOR..............4 0
WINDSHIELD WASHER SWITCH.............4 0
WINDSHIELD WIPER MOTOR...............4 0
WINDSHIELD WIPER SWITCH..............4 0 INJECTOR..........:;.:::::
INJECTOR RESISTOR .........
INSTRUMENT CLUSTER .....
INTERIOR LAMP..........:::
ISC VALVE .................
. . . . . , . . . . .
. . . . . . . . . . . iz:
,..........
30