1992 MAZDA PROTEGE ECU

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

ASSEMBLY 82
03UOB2-09
03UOB2-094
-
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.
Caution
l The oil pan must be secured within 30 minutes af-
ter the sealant is applied to the MBSP.
2. Apply silicone sealant to the shaded areas shown in the
figure.
3. Apply a continuous bead of silicone sealant to the MBSP
along the inside of the bolt holes.
4. Install the MBSP.
5. Install the MBSP bolts and tighten them in two or three steps
in the order shown.
Tightening torque:
16-21 N,m (1.6-2.1 m-kg, 12-15 ft-lb)
Oil Strainer
1. Install the oil strainer and a new gasket.
Tightening torque:
7.6-l 1 N-m (80-l 10 cm-kg, 89-95 in-lb)
B2-75

B2 ASSEMBLY
TIMING BELT
Torque Specifications
7.6-11 N:m
(60-l 10 cm-kg,
69-95 in-lb) \
-kg, 69-95 in-lb)
37-52
(3.8-5.3, 27-38)
157-167 (16-17, 116-123)
?.a--11 N-m
(60-110 cm-kg, 69-95 in-lb) /
12-17 (1.25-1.76, 9-13)
N-m (m-kg, ft-it
03UOB2.1
Idler
1. Install the idler.
Tightening torque:
37-52 N.m (3.8-5.3 m-kg, 27-38 ft-lb)
Tensioner and Tensioner Spring
1. Install the tensioner and the tensioner spring.
2. Temporarily secure the tensioner with the spring fully ex-
tended.
-’
o5uoBx-229
02-84

INSTALLATION B2
Step 2
Warning
l Be sure the vehicle is securely supported on Safety stands.
Torque Specifications
‘4-l 03
‘.5-10.5, 54-76)
37-52 (3.8-5.3, 27-38)
/
37-52 (3.8-5.3, 27-38)
64-89 (6.5-9.1, 47-66) 64-89 (6.5-9.1, 47-66)
N.m (m-kg, ft-II
OWOBX-21
Engine mount member (ATX)
1. Install the engine mount member.
Tightening torque:
64-89 N*m (6.5-9.1 m-kg, 47-66 ft-lb)
I I 03UOB2-130 1132-95

INSTALLATION
Step 3
Torque Specifications
16-23 (1.6-2.3, 12-17) 6.9-9.8 N.m (70-100 cm-kg, 61-87 in-lb)
I

m- ,,
// / 31-46 (3.2-4.7, 23-34)
ATX
Y
16-23 (1.6-2.3, 12-17) I 37-52 (3.8-5.3, 27-38) \/r-]z$/ 43-59 (4.4-6.0, 31-43)
COTTER PIN, NEW
/ 31-46 (3.2-4.7. 23-34) 42-67 (4.3-5.8, 31-42)
-_ ..------_ N.m (m-kg, R-lb)
no, Inor, 1.3
L 03UOB2 131
I 0311082-13.
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 lock nut.
Tightening torque:
43-59 N-m (4.4-6-O m-kg, 31-43 ft-lb)
4. Install the joint shaft.
5. Tighten the bolts in the order shown.
Tightening torque:
42-62 N-m (4.3-6.3 m-kg, 31-46 ft-lb)
82-97

OIL PAN
BPSOHCANDDOHC
D
I. Remove the oil pan mounting bolts. .-_-__------- BPSOHCANDDOHC
23UODX-007
MAIN BEARING SUPPORT PLATE (MBSP)
! 03UODX-021
MAIN BEARING SUPPORT PLATE (MBSP)
‘OLD SEALANT ---1_1
OBUODX-0: !2
Caution
l Do not force a prying tool between the cylinder
block and the oil pan, which may damage the con-
tact surfaces.
l Do not damage or scratch the contact surfaces
when removing the old sealant.
2. Insert a screwdriver or a suitable tool only at the points
shown in the figure.
3. Rernove the oil pan.
Main bearing support plate (MBSP)
1. Remove the MBSP mounting bolt to the main bearing cap.
2. Insert a screwdriver or other suitable tool between the MBSP
and cylinder block, and pry them.
Caution
l Do not damage or deform the MBSP.
l Do not damage or scratch the contact surfaces.
Installation Note
Main bearing support plate (MBSP)
1. Remove all foreign material from the contact surfaces of the
cylinder block and MBSP.
Caution
l The oil pan must be secured within 5 minutes after
the sealant is applied to the MBSP.
2. Apply a continuous bead of silicone sealant to the MBSP
along the inside of the bolt holes.
3. Install the MBSP.
4. Tighten the MBSP bolts in two or three steps in the order
shown in the figure.
Tightening torque:
16-21 N.m (1.6-2.1 m-kg, 12-15 ft-lb)
D-l 1

F
FUEL AND EMISSION
CONTROL SYSTEM
INDEX ...........................................
OUTLINE ...................................... ;: 2
SYSTEM DIAGRAM ...................... F-
:
VACUUM HOSE ROUTING
DIAGRAM .................................
WIRING DIAGRAM ....................... F- 6
- 7
ENGINE CONTROL UNIT (ATX) ...... F- 13
SPECIFICATIONS.. ....................... F- 15
COMPONENT DESCRIPTIONS.
...... F- 16
TROUBLESHOOTING GUIDE.. ......... F- 20
ENGINE CONTROL OPERATION
CHART
..................................... F- 20
RELATIONSHIP CHART.. .............. F- 24
USING THIS SECTION .................. F- 25
DIAGNOSTIC INDEX .................... F- 27
PRECAUTION ............................. F- 29
SYMPTOM TROUBLESHOOTING .... F- 30
ENGINE TUNE-UP
.......................... F- 76
PREPARATION ............................
F- 76
BASIC INSPECTION ..................... F- 78
ADJUSTMENT .............................
F- 79
SELF-DIAGNOSIS FUNCTION .......... F- 82
DESCRIPTION .............................
F- 82
PREPARATION
............................
F- 83
SERVISE CODE NUMBER.. ........... F- 83
SWITCH MONITOR FUNCTION ...... F-105
INTAKE AIR SYSTEM.. ................... F-109
COMPONENT PARTS.. ................. F-109
THROTTLE BODY ........................ F-l 12
DYNAMIC CHAMBER ................... F-l 12
INTAKE MANIFOLD ..................... F-l 13
ACCELERATOR PEDAL ................ F-l 14
ACCELERATOR CABLE ................ F-l 14
IDLE SPEED CONTROL (ISC)
SYSTEM ......................................
F-115
DESCRIPTION ............................. F-115
PREPARATION
............................ F-116
SYSTEM OPERATION.. ................. F-l 16
ISC VALVE ................................. F-116
AIR VALVE
................................. F-116
VARIABLE INERTIA CHARGING
SYSTEM (VICS) [DOHC] ................ F-l 17
DESCRIPTION ............................. F-117
SYSTEM OPERATION ................... F-l 18
SHUTTER VALVE ACTUATOR.. ...... F-l 18
SOLENOID VALVE (VICS). ............. F-118
VACUUM CHAMBER.. .................. F-119
FUELSYSTEM .............................. F-l 20
DESCRIPTION
............................. F-l 20
PRECAUTION ............................. F-121
SYSTEM OPERATION.. ................. F-121
FUEL TANK ................................
F-l 23
FUEL FILTER .............................. F-l 24 FUEL PUMP ............................... F-l 25
CIRCUIT OPENING RELAY.. .......... F-129
PRESSURE REGULATOR.. ............ F-129
INJECTOR .................................. F-l 31
PRESSURE REGULATOR
CONTROL SYSTEM.. .................... F-l 34
SOLENOID VALVE (PRESSURE
REGULATOR CONTROL). ............ F-l 35
EXHAUST SYSTEM ........................ F-l 36
COMPONENT PARTS.. ................. F-136
OUTLINE OF EMISSION
CONTROL SYSTEM.. .................... F-l 37
STRUCTURAL VIEW.. ................... F-l 37
POSITIVE CRANKCASE
VENTILATION (PCV) SYSTEM.. ..... F-138
DESCRIPTION .............................
F-l 38
PCV VALVE ................................ F-l 38
EVAPORATIVE EMISSION
CONTROL SYSTEM.. .................... F-l 39
DESCRIPTION ............................. F-l 39
SYSTEM OPERATION.. ................. F-140
SOLENOID VALVE
(PURGE CONTROL) ................... F-140
SEPARATOR ............................... F-l 40
CHECK VALVE (TWO-WAY) ........... F-140
CHECK-AND-CUT VALVE.. ............ F-141
CHARCOAL CANISTER.. ............... F-141
DECELERATION CONTROL
SYSTEM ...................................... F-l 42
DESCRIPTION ............................. F-l 42
DASHPOT .................................. F-142
FUEL CUT CONTROL SYSTEM ....... F-143
DESCRIPTION ............................. F-l 43
PREPARATION ............................ F-l 43
SYSTEM OPERATION.. ................. F-143
DECHOKE CONTROL SYSTEM.. ...... F-145
DESCRIPTION ............................. F-l 45
SYSTEM OPERATION ................... F-l 45
CONTROL SYSTEM ....................... F-l 47
PREPARATION ............................ F-147
STRUCTURAL VIEW.. ................... F-l 48
ENGINE CONTROL UNIT (ECU) ..... F-149
AIRFLOW METER (WITH INTAKE AIR
THERMOSENSOR) ..................... F-168
WATER THERMOSENSOR.. ........... F-168
THROTTLE SENSOR .................... F-l 69
OXYGEN SENSOR.. ..................... F-171
MAIN RELAY (FUEL INJ RELAY) .... F-172
CLUTCH SWITCH (MTX) ............... F-172
NEUTRAL SWITCH (MTX). ............. F-173
POWER STEERING PRESSURE
SWITCH .................................... F-173
WJOFX-001