ECU MAZDA 323 1989 Factory Repair Manual

GI IDENTIFICATION NUMBER LOCATIONS/UNITS/ABBREVlATlONS
VEHICLE IDENTIFICATION NUMBER (VIN) AUTOMATIC TRANSAXLE MODEL AND NUMBER
ENGINE MODEL AND NUMBER
B6 ENGINE
IDENTIFICATION NUMBER LOCATIONS
UNITS
I
N.m (m-kg or cm-kg,
ft-lb or in-lb) . . . . . . . . . . . . . . . . . . Torque
rpm ._..,,,.............,.......... Revolutions per minute
A . . . . . . . . . . . . . . . . . Ampere(s)
v, . . . . . . . . . . . . . .
Volt(s)
$2 _....._..,......................... Ohm(s) (resistance)
kPa (kg/cm2,
psi) . . . . . . . . . . Pressure
(usually positive)
mmHg (inHg) . . . . . . . . . . . . . . . Pressure
(usually negative)
W.. . . . . . . . . . . .
Watt
liters (US qt, Imp qt) ,... Volume
mm (in) ..,......,...,........... Length
89UOGX-00
ABBREVIATIONS
ABDC . . . . . . . . . . . . . . . . . . . . .
After bottom dead
center
A/C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air conditioner
ACC ..,.,...... 3 . . . . . . . . . . . . . . . . . Accessories
ATX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic transaxle
ATDC ..,,...,...,............... After top dead center
ATF . . . . . . . . . . . . . . . . . Automatic transaxle
fluid
BBDC ,,..,.......,...,......,... Before bottom dead
center
BTDC .,......,...............,.. Before top dead center
CPU ..,,.......,...,..........,.. Central processing unit
DOHC ..,...,..,............,,.. Double overhead
camshaft
DRL ____.......................... Daytime running lights
EC-AT .,_.......,............,,.. Electronically-controlled
automatic transaxle
L
GI-10
ECU ............................. Engine control unit
EGI ............................... Electronic gasoline
injection
E/L.. .............................. Electrical load
EX ................................ Exhaust
GND.. ........................... Ground
HLA.. ............................ Hydraulic lash adjuster
IGN ............................... Ignition
IN ................................. Intake
INT ............................... Intermittent
ISC
............................... idle speed control
LH ................................ Left hand
M..
................................ Motor
MIL..
............................. Malfunction indicator
lamp
M/S..
............................. Manual steering
MTX.. ............................ Manual transaxle
OD ................................ Overdrive
OFF.. ............................ Switch off
ON.. .............................. Switch on
PCV.. ............................ Positive crankcase
ventilation
PRC..
............................ Pressure regulator
control
PIS ................................ Power steering
RH..
.............................. Right hand
SOHC.. .........................
z;;kiprhead
SST ............................... Special service tool
SW.. .............................. Switch
TNS
.............................. Tail number side
VICS
............................. Variable inertia charging
system
23UGIX-00

. .-
CAUTION Gl
CAUTION WITH ELECTRICAL PARTS
Battery Cable
Before disconnecting connectors or replacing electrical parts,
disconnect the negative battery cable.
SMUGIX-022
YMUGIX-023
SMUGIX-02
SMUGIX-02
03UGIX-011 Connectors
Removal of connector
Never pull on the wiring harness when disconnecting con-
nectors.
Connectors can be removed by pressing or pulling the lock
lever as shown.
Locking of connector
When locking connectors, make sure to listen for a click that
will indicate they are securely locked.
Inspection
1. When a tester is used to check for continuity or to measure
voltage, insert the tester probe from the wire harness side.
GM 3

GI CAUTION
/
_____--__.. -I
OWGIX-028
2. Check the terminals of waterproof connectors from the con-
nector side, as they cannot be accessed from the wire har-
ness side.
Caution
l Use fine wire to prevent damage to the terminal.
l Do not damage the terminal when inserting the
tester lead.
.- - 9MUGIX-027
9MUGIX-028
Same as the female type.
I
9MUGK031
Terminals
Inspection
Pull lightly on individual wires to check that they are secured
in the terminal.
Replacement of terminals
Use the appropriate tools to remove the terminal as shown.
When installing the terminal, be sure to insert it until it locks
securely.
< Female >
Insert a thin piece of metal from the terminal side of the con-
nectar, and then, with the terminal locking tab pressed down,
pull the terminal out from the connector.
< Male >
Sensors, Switches, and Relays
Handle sensors, switches, and relays carefully. Do not drop
them or strike them against other parts.
GI-14

PRE-DELIVERY INSPECTION
PRE-DELIVERY INSPECTION
PRE-DELIVERY INSPECTION TABLE
Following items may be done at any time prior to delivery to your customer.
INSPECT and ADJUST, if necessary, the following items to
the specifications:
0 Glass, exterior bright metal and paint for damage
Cl Wheel lug nuts, and locks (if equipped)
88-118 N.m (9-12 m-kg, 65-87 ft-lb)
q All weatherstrips for damage or detachment
0 Operation of hood release and lock
0 Operation of trunk lid, rear hatch, and fuel lid opener
Cl With trunk open, check for spare jack, tire, tools, and
fasteners securing these items in place.
Cl Door operation and alignment
Cl Headlight aim
INSTALL the following parts:
Cl Wheel caps or rings (if equipped)
q Outside rearview mirror(s)
1 UNDER HOOD-ENGINE OFF )
INSPECT and ADJUST, if necessary, the following items to
the specifications:
0 Fuel, coolant and hydraulic lines, fittings, connections and
components for leaks
Cl Engine oil level
0 Power steering fluid level
0 Brake and clutch master cylinder fluid level
El Windshield washer reservoir fluid level
Cl Radiator coolant level
Cl Tightness of battery terminals
Cl Manual transaxle oil level
riizmiq
INSTALL the following parts:
Cl Rubber stopper for inside rearview mirror
CHECK operation of the following items:
0 Seat controls (sliding and reclining) and head restraint
Cl Folding rear seat
0 Door locks, including childproof door locks (if equipped)
Seat belts and warning system
Cl Ignition switch and steering lock
0 Inhibitor switch (ATX only)
U Starter interlock switch (clutch pedal, MTX only)
Cl All lights, including warning and indicator lamps
Cl Sound warning system
Cl Horn, wipers and washers (front and rear, if equipped)
0 Audio system (if equipped) 0 Cigarette lighter and clock
0 Sunroof (if equipped)
II Remote control outside rearview mirrors (if equipped)
Cl Power windows (if equipped)
q Heater, defroster and air conditioner at various mode
selections (if equipped)
CHECK the following items:
Cl Presence of spare fuse
0 Upholstery and interior finish
CHECK and ADJUST, if necessary, the following items:
0 Pedal height and free play of brake and clutch pedal
Pedal height mm (in) Free play mm (in)
0 Parking brake
5-7 notches/98 N (10 kg, 22lb)
UNDER HOOD-ENGINE RUNNING AT
OPERATING TEMPERATURE
CHECK the following items:
q Automatic transaxle fluid level
[I
CHECK the following items:
Cl Underside fuel, coolant and hydraulic lines, fittings, con-
nections and components for leaks
0 Tires for cuts or bruises
0 Steering linkage, suspension, exhaust system and all un-
derside hardware for looseness or damage
[I
CHECK the following items:
0 Brake operation
0 Clutch operation
Cl Steering control
Cl Operation of gauges
q Squeaks, rattles or unusual noise
Cl Emergency locking retractors
0 Cruise control system (if equipped)
1 AFTER ROAD TEST (
CHECK for necessary owner information materials.
Following items must be done just before the delivery to your customer.
q Load test battery and charge if necessary
1 Volts 1 0 Install fuses for accessories
i.. _
0 Adjust tire pressure to the specification
Load test result cl Remove seat and floor mat protective covers
(Refer to door label) 0 Vacuum and clean interior of vehicle
0 Clean outside of vehicle q Inspect installation of option parts with invoice
23UOAX-002
A-2

-
. . .
ON-VEHICLE MAINTENANCE Bl
13EOBl-010
Removal Note
Pulley lock bolt
1. Hold the pulley with the SST.
2. Using the SST, loosen the pulley lock bolt.
3. Remove the pulley lock bolt and pulley boss.
MARKS
13EOBl-02
MARK -
DIRECTION
ROTATION
13EOBl-02
OBUOBX-0;
TIMING MARK
13EOBl.022
Timing belt
1. Install the pulley boss and pulley lock bolt.
2. Turn the crankshaft to align the timing marks.
Note
l The pin on the pulley boss must face upward.
Caution
l After setting the marks, do not turn the crankshaft
when removing the pulley lock bolt and pulley boss.
3. Remove the timing belt.
Note
l Mark the timing belt rotatlon for proper relnstal-
latlon.
Installation Note
Tensioner, tensioner spring
1. Install the tensioner and the tensioner spring.
2. Temporarily secure the tensioner with the spring fully ex-
tended.
Timing belt
1. Verify that the timing belt pulley and camshaft pulley mark
is aligned with the timing mark.
Bl-13

ASSEMBLY Bl
OWOBX-20
23UOBl-049
5. Install the rear cover.
Tightening torque:
7.8-l 1 N*m (80-l 10 cm-kg, 89-95 in-lb)
Oil Pump
1. Apply a small amount of clean engine oil to the lip of a new
oil seal.
2. Push the oil seal slightly in by hand.
Caution
l The oil seal must be pressed in until it is flush with
the edge of the oil pump body.
3. Press the oil seal in evenly with a suitable pipe.
Oil seal outer diameter: 44mm (1.73 in)
4. Install the oil pump and a new gasket.
Tightening torque:
19-25 N-m (1.9-2.8 m-kg, 14-19 ft-lb)
Caution
l Do not scratch the oil pump.
5. Cut away the portion of the gasket that projects from the
body toward the oil pan side.
Main Bearing Support Plate (MBSP)
1, Remove all foreign material from the contact surfaces of the
cylinder block and the MBSP.
Caution
l The oil pan must be secured within 5 minutes after
the sealant is applied to the MBSP.
2. Apply silicon sealant to the shaded areas shown in the figure.
81-75

ASSEMBLY
TIMING BELT
Torque Specifications
78-l 1 N-m (80-l 10 -kg, 69-95 in-lb)
12-17 (1.25-1.75, 109-152) N-m (m-kg, Mb)
03UOBl-15 2
Timing Belt Tensioner
1. Install the tensioner and the tensioner spring.
2. Temporarily secure the tensioner with the spring fully ex-
tended.
Timing Belt
1. Verify that the timing belt pulley mark is aligned with the tim-
ing mark.

INSTALLATION Bl
Step 2
Warning
l Be sure the vehicle is securely supported on safety stands.
Taraue Soecifications
'S-80 (5.6-6.2, 41-59) 74-103 (7.5-10.5, 54-76)
h // 67-93 43-61
(6.8-9.5, 49-69) (4.4-6.2, 32- .45)
64-89 (6.5-9.1, 47-66)'
'
/cR-x&l /84-89 (6.5-9.1, 47-66)
>\----37-L5i (3.8-5.3.
27-38)
N.m (m-kg, ft-II
0311081-i
Ii------ //Ill 1 Engine mount member
1. Install the engine mount member.
Tightening torque:
64-69 N#m (6.5-9.1 m-kg, 47-66 f&lb)
Bl-95

Step 3
Torque Specifications
INSTALLATION
ATX
Bl
6.9-11 N-m
(70-110 cm-kg, 61-95 in-lb)
GAs~~~~~~~~c~~~,~
(3.2-4.7, 23-34) 16-23 6.9-9.6 N.m
11.6-2.3. 12-17) (70-100 cm-kg, (4.3-5.6, 31-42) -43)
NEW \.~ 61-67 in-lb)
N.m (m-ka. R-lb
Driveshaft
1. Apply grease to the end of the driveshaft.
Caution
l When installing the driveshaft, be careful not to
damage the oil seal.
l After installation, pull the front hub outward to con-
firm that the driveshaft is securely held by the clip.
2. Install the driveshaft and a new clip.
3. Install the lower arm ball-joint to the knuckle; then tighten
the locknut.
Tightening torque:
43-59 N,rn (4.4-6.0 m-kg, 32-43 f&lb)
Bl-97

ON-VEHICLE MAINTENANCE B2
- 05UOBX-04:
---_____~
OWOBX 04
----
05UOBX-03
4
2. Loosen the tensioner lock bolt.
Caution
l To prevent damage to the tensioner, secure it with
a rag.
3. Temporarily secure the tensioner with the spring fully ex-
tended.
Caution
Q Do not allow any oil or grease on the timing belt.
4. Remove the timing belt and secure it out of the way to pre-
vent damage during removal and installation of the cylin-
der head.
Cylinder head bolt
1. Loosen the cylinder head bolts in two or three steps in the
order shown in the figure.
2. Remove the cylinder head bolts.
Installation note
Cylinder head bolt
1. Apply clean engine oil to the bolt threads and seat faces.
2. Install the cylinder head bolts.
3. Tighten the cylinder head bolts in two or three steps in the
order shown in the figure.
Tightening torque:
76-81 N-m (7.7-8.3 m-kg, 56-60 ft-lb)
Cylinder head cover
1, Apply silicone sealant to the shaded areas as shown in the
figure.
2. Install the cylinder head cover.
Tightening torque:
4.9-8.8 N-m (50-90 cm-kg, 43-78 in-lb)
B2-19