steering MAZDA PROTEGE 1992 Workshop Manual

1992
Mazda
CONTENTS
Protege
Workshop
Manual
FOREWORD
This workshop manual is intended for use
by service technicians of Authorized Mazda
Dealers to help them service Mazda vehicles.
For proper repair and maintenance, a
thorough familiarization with this manual is im-
portant, and it should always be kept in a han-
dy place for quick and easy reference.
All the contents of this manual, including
drawings and specifications, are the latest avail-
able at the time of printing. As modifications
affecting repair or maintenance occur, relevant
information supplementary to this volume will
be made available at Mazda dealers. This
manual should be kept up-to-date.
Mazda Motor Corporation reserves the right
to alter the specifications and contents of this
manual without obligation or advance notice.
All rights reserved. No part of this book may
be reproduced or used in any form or by any
means, electronic or mechanical-including
photocopying and recording and the use of
any kind of information storage and retrieval
system-without permission in writing.
Mazda Motor Corporation
HIROSHIMA, JAPAN
APPLICATION:
This manual is applicable to vehicles beginning
with the Vehicle Identification Numbers (VIN)
shown on the following page.
Title
General Information Section
Pre-Delivery Inspection and
Scheduled Maintenance Services
SOHC
Engine
DOHC
Lubrication System
Cooling System
Fuel and Emission Control System
Engine Electrical System
Clutch
FSM-R
Manual Transaxle
GSM-R
Automatic Transaxle
Front and Rear Axles
Steering System
Braking System
Wheels and Tires
Suspension
Body
--
Body Electrical System
Heater and Air Conditioner Systems
Technical Data
Special Tools
Parts Index
Wiring DNvam
I Part No. 5209-10-91 F)
9999~95-019(3-92)
o 1991 Mazda Motor Corporation
PRINTED IN USA, JUL. ‘91
1270-l O-91 G
(9999-95-0178-92)

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

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

7 Schedule 1 (Normal Driving Conditions) (Cont’d)
MAINTENANCE
INTERVALS 1 ::::“’ rths ’ 7.5
DPERATION x 1,000 miles
x 1,000 km 3r mi
15
15
24
1
Page
l- . whichever comes first s (kilometer!
37.5
37.5
60 52.5
52.5
64 60
60
96
I
l-7
Service data and inspection points
l Hoses for cracks or wear l Coolant level E-5
Zooling system
Engine coolant
Fuel filter
‘die speed
Fuel lines
Brake lines, hoses and connections
l Coolant capacity:
5.0 liters (5.3 US qt, 4.4 Imp qt) . . . . . . . . . . MTX
6.0 liters (6.3 US qt, 5.3 Imp qt) . . . . . . . . . . ATX
I E-6 -
F-l 24
l ATX: P range, MTX: Neutral
700-800 rpm (with parking brake applied)
l Fittings, connections, and components for F-80
F-120
-
H-6
P-28
P-29
P-20
P-25
P-18
P-25
---
N-27
N-8
-
M-21
-
F-136
u-35
u-39 leaks
0 Proper attachment and connections
l Operation l Pedal height (with carpet):
196-204mm (7.72-8.03 in)
l Free play:
5--13mm 10.197-0.512 in) Clutch pedal
l Wheel cylinder operation and leakage
l Lining for wear or damage l Lining thickness:
Minimum . . . . . 1 .Omm (0.04 in)
l Drum inner diameter
Maximum..... 201mm (7.91 in) Drum brake
l Caliper operation l Disc plate thickness:
Minimum.... Front 20mm (0.79 in)
Rear 7.0mm (0.28 in)
l Pad thickness:
Minimum.... Front 2.0mm (0.08 in)
Rear l.Omm (0.04 in)
l Operation and looseness l Fluid leakage or oozing l Free play.... O-30mm (O-l .18 in)
l Damage, looseness, and grease leakage
l Cracking and damage
l Retighten all loose nuts and bolts I
1
Disc brake
I
---l-T
Steering operation and linkage
Front suspension ball joints
Drive shaft dust boots
Bolts and nuts on chassis and body
Exhaust system heat shield
Air conditioner system (if equipped) Refrigerant
Compressor am01 anni I
l Insulation clearance
- ,.
Inspect rerrlgerar
Inspect operation annually -

I
Schedule 2 (Unique Driving Conditions) (Cont’d)
(kil
I :
I :
’ 1 iii ichever comes first lometers), Y
25 30 35
25 30 35
40 48 58
I
45
45
72 50
50
80
-
-
I
I
I
I
I
T
I
,
40
iii
i5i
-
-
-
-
-
-
-
-
-
I
-
-
T -
-
-
- -
1 nspec L :t rerngeranr amount annually
Inspect operation annually m
rs
E
24
-
-
-
I
-
-
-
T
-
T fn
iiF
is
w
-
-
-
-
-
-
-
-
- iii
iii
,s
-
I
-
I
-
I
-
I
T
I-
r
T
-
T7
Service data and inspection points Page l
Operation l Pedal height (with carpet):
196-204mm (7.72-8.03 in) l
Free play
5-13mm (0.197-0.512 in) l
Wheel cylinder operation and leakage l Lining for wear or damage l Lining thickness:
Minimum l.Omm (0.04 in) l
Drum inner diameter: H-6
Clutch pedal
P-28
P-29 Drum brake
Maximum 201mm (7.91 in) l
Caliper operation l Disc plate thickness:
Minimum Front.... 20mm (0.79 in)
Rear . . . . . 7.0mm (0.28 in) l
Pad thickness:
Minimum Front.... 2.0mm (0.08 in)
Rear . . . . . 1 .Omm (0.04 in) l
Operation and looseness l Fluid leakage or oozing l Free play.... O-30mm (O-l.18 in) l
Damage looseness and grease leakage l
Cracking and damage l
Retighten all loose nuts and bolts l
Insulator clearance
-
- P-20
P-25
P-18
P-25
N-27
N-8 Disc brake
Steering operation and linkage
Front suspension ball joint
Drive shaft dust boots
Bolts and nuts on chassis and body
Exhaust system heat shield
Air conditioner system (if equipped) Refrigerant
Compressor -
M-21
-
F-136
u-35
u-39

7 Schedule (Cont’d)
rile
iii
48
30
-
R
I
R !rs
25
40
25
-
-i- , whichever comes first
OPERATION MAINTENANCE Number of m
INTERVALS Months
x 1,000 km
x 1,000 miles
ii
is
G
-
i-
-
-
I
5-
T
-
-
-
-
-
-
- ii
z
ro
-
I-
-
-
I
- 45
72
45
-
-i-
-
-
I
-
ry 15 month:
I I I
A
t
A
j
milt Service data and inspection points Page
l Capacity
MTX B6, BP SOHC:
2.68 liters (2.83 US qt, 2.36 Imp qt)
BP DOHC
3.35 liters (3.55 US qt, 2.96 Imp qt)
ATX: 6.3 liters (6.7 US qt, 5.5 Imp qt)
l Level and condition
- Jl-7
J2-7
- Transaxle oil
l Wear and damaae -i- -i- -i- -
Brake fluid, clutch fluid
Brake fluid*3 -
Q-3, 5
Q-6
N-27
P-28
P-29 I I
- I
1,oo
-i
-
-
-
-
-
-
- I
G
T
-
-
-
-
-
-
- I
15,(
I Tire inflation pressure and wear l Proper pressure-
-
l Level and condition
l Wheel cylinder operation and leakage l Lining for wear or damage l Lining thickness:
Minimum 1 .Omm (0.04 in)
l Drum inner diameter. 3s) or f
I I
I
:t r
- Rotate tires
Power steering fluid
Drum brake ? every
I I
Disc brake I I
Maximum 201mm (7.91 in)
l Caliper operation l Disd plate thickness:
Minimum Front.... 20mm (0.79 in)
Rear . . . . . 7.0mm (0.28 in)
l Pad thickness:
Minimum Front.... 2.0mm (0.08 in) P-20
P-25
P-l 8
P-25
N-27
N-8 Rear . . . . . 1 .Omm (0.04 in)
l Operation and looseness l Fluid leakage or oozina
l Free play.... O--3OmmjO-1.18 in)
l Damage looseness and grease leakage
l Cracking and damage
l Insulator clearawp .-v
-
Steering operation and linkage
I
-i-
-I-
-i- Front suspension ball joint
Drive shaft dust boots
Exhaust system heat shield
Air conditioner system (if equipped) Refrigerant
Compressor
Suspension components (front and rear)
All chassis and body nuts and bolts
All locks and hinaes
Washer fluid -
M-21
F-136
u-35
u-39
-
- IY efrigerant amount ann
*. I# mspec
Inspect operation annualry -
l Damaae
l Retighten all loose nuts and bolts
l Lubricate all locks and hinges
l Level
l ODeration - Function of all lights l !%t and damage -

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

INDEX F
1. Resonance duct
Inspection / Replacement.. ........ page F-l 09
2. Air cleaner element
Inspection ................................. page F- 79
Replacement.. ........................... page F-l 09
3. Airflow meter
(With intake air thermosensor)
Inspection
................................. page F-l 68
Replacement.. ........................... page F-l 09
4. Resonance chamber
Inspection I Replacement.. ........ page F-l 09
5. Throttle body
Inspection .................................
page F-l 12
Replacement.. ...........................
page F-l 09
6. Throttle sensor
inspection ................................. page F-l 69
Adjustment..
.............................. page F-l 69
Replacement.. ........................... page F-l 71
7. ISC valve
Inspection ................................. page F-l 16
Replacement..
........................... page F-l 09
8. Dashpot
Inspection ................................. page F-l 42
9. Dynamic chamber
Removal / Installation ................
page F-109
Inspection [DOHC] ................... page F-l 12
10. Air valve
Inspection
................................. page F-l 16
Removal / Installation ................ page F-109
11. Shutter valve actuator
Inspection ................................. page F-l 18
12. Vacuum chamber [DOHC]
Inspection ................................. page F-l 19
13. Intake manifold
Removal / Installation ................ page F-l 09
14. Injector
Inspection .................................
page F-l 31
Removal .................................... page F-131
Installation.. ............................... page F-l 33 15. Pressure regulator
Inspection ................................. page F-l 29
Replacement ............................. page F-l 30
16. Solenoid valve (Pressure regulator control)
[BP1
Inspection ................................. page F-l 35
17. Solenoid valve (VICS) [DOHC]
Inspection ................................. page F-l 18
18. Charcoal canister
Inspection ................................. page F-l 41
19. Solenoid valve (Purge control)
Inspection ................................. page F-l 40
20. Circuit opening relay
Inspection ................................. page F-l 29
Replacement ............................. page F-l 29
21. Engine control unit (ECU)
Removal / Installation ................ page F-l 49
Inspection ................................. page F-149
22. Clutch switch (MTX)
Inspection ................................. page F-l 72
Replacement.. ........................... page F-l 72
23. PCV valve
Inspection ................................. page F-l 38
24. Water thermosensor
Removal / Inspection /
Installation ............................... page F-l 68
25. Fuel filter (High-pressure side)
Replacement.. ........................... page F-l 24
26. Main relay (FUEL INJ relay)
Inspection ................................. page F-l 72
27. Neutral switch (MTX)
inspection ................................. page F-l 73
Replacement.. ........................... page F-l 73
28. Oxygen sensor
Inspection ................................. page F-l 71
Replacement ............................. page F-l 72
29. Power steering pressure switch
Inspection ................................. page F-l 73
Replacement.. ........................... page F-l 73
23UOFX-002
F-3

c>. .DOHC EGI MT wENGINE CONTROL SYSTEM (2/3) 0 _. .CANADA+11
ENGINE CONTROL UNIT
DOHC
2E @ 2w 2x 2s 2T 2U 2V
@
El-01te ________ _________--___---_-_--------
_--____- I _______--_----__------------
L/W
(EM)
1 1
OXSTRIEUTOR W/R (EM)
%T
A
w
l-01 ENGINE CONTROL UNITfEM) El-09 DISTRIEZJTOR IEM) 31-10 POWER STEERING
1U IS 10 10 It4 IK 11 IG iE IC 1A 2Y 2w au 2s 2Q 20 2M 2lc 21 26 2E PRESSURE SWITCH (F)
R/B O/L G/0 G * G/Y * G/W Y/B V L/R * L/O Y “rp L/W R * -G/
l-l 1 ISC VALVE (EM)
l-i8 WATER Tt+ERMOS~~;Sa~Bl-25 SOLENOID VALVE
wcs) (1~~1
pi&q te/klw/R[

OUTLINE
Component Function Remark
Engine control unit (ECU) Controls operation of the following:
(Cont’d)
1. A/C (Cut-off) 1. A/C relay
2. Fail-safe function 2. Self-Diagnosis Checker and MIL
3. Fuel injection system 3. Injector
4. idle speed control 4. Idle speed control (ISC) valve
5. Ignition timing control system 5. Igniter
6. Monitor function 6. Monitor lamp (Self-Diagnosis Checker)
7. Pressure regulator control system 7. Solenoid valve
(Pressure regulator control) (BP)
8. Purge control system 8. Purge control solenoid valve
9. VICS 9. Solenoid valve (WCS) (DOHC) Fuel filter
Filters particles from fuel Fuel pump
Provides fuel to injectors l Operates while engine running l Installed in fuel tank Igniter
Receives spark signal from ECU and gener-
ates high voltage in ignition coil Ignition switch
Engine cranking signal sent to ECU (START position)
Inhibitor switch (ATX)
Detects in-gear condition; sends signal to Switch ON in N or P range
ECU Injector
Intake air thermosensor
Idle speed control (ISC)
valve
Main relay
(FUEL INJ relay)
MIL (Malfunction
indicator lamp)
Neutral switch (MTX)
Oxygen sensor
PCV valve
P/S pressure switch
Pressure regulator
Resonance chamber
Resonance duct
Separator
Stoplight switch
Solenoid valve
(Purge control)
Shutter valve actuator
(DOHC)
Throttle body
Throttle sensor
Injects fuel into intake port l Controlled by signals from ECU
l High-ohmic injector
Detects intake air temperature; sends signal Installed on dynamic chamber
to ECU
Controls bypass air amount Controlled by duty signal from ECU
Supplies electric current to injectors, ECU,
etc.
Lamp flashes to indicate malfunction code
number of input and output devices
Detects in-gear condition; sends signal to
ECU
Detects oxygen concentration; sends signal
to ECU
Controls blowby gas introduced into engine
Detects P/S operation; sends signal to ECU
Adjusts fuel pressure supplied to injectors
Reduces intake air noise
Reduces intake air noise
Prevents fuel from flowing into charcoal
canister
Detects braking operation (deceleration),
sends signal to ECU
Controls evaporative fumes from canister to
intake manifold
Closes/opens shutter valve to improve
torque characteristics
Controls intake air quantity
l Detects throttle valve fully closed/fully
opened condition (MTX) TEN terminal grounded
Switch ON in neutral
Zirconia ceramic and platinum coating
P/S: ON when steering wheel turned right or
left
Controlled by duty signal from ECU
For Variable inertia charging system (VICS*)
Integrated throttle sensor, dashpot, and ISC
valve
l Detects throttle valve opening angle
(A-W
l Sends signals to ECU
F-l 7