1992 MAZDA 323 ad blue

TROUBLESHOOTING GUIDE F3
8
1 ROUGH IDLE/ENGINE STALLS AT IDLE - ALWAYS
DESCRtP- 1 l Engine starts normally but stalls or vibrates excessively at idle in every condition
TION
[TROUBLESHOOTiNG HlNTSJ @ Air/Fuel mixture tw lean @ Incorrect idle-speed l ldiespeed misadjustment l Idle-speed control malfunction
$I One or more spark plugs not firing
9 Low engine compression
B Airflow meter stuck l Air leakage l Fuel injection control malfunction
*Low fuel line pressure
@ One or more injectors clogged or not
@ Low intake air amount operating
INSPECTION
Is “00” displayed on Self-Diagnosis
Checker with ignition switch ON?
1
SYSTEM SELECT: 1
ACTION
Go to next step
Service Code No. displayed Check for cause (Refer to specified
check sequence) c7 page F3-16
“88” flashes
Check ECU terminal IF voltage
(17 page F345
--.
‘\.
Voltage: Battery v&age
(Ignition switch ON)
4 If UK, replace ECU IT page F3-2 c3 If not OK, check wiring
(ECU - Self-Diagnosis Checker) Y -SELECT SW: A
Are ECU terminal voltages OK
(especially 20, 20, and ZQ)?
D page F3-45 Yes
Gu to next step
NO Check for cause
Disconnect each high-tens&on lead at idle: does
engine speed decrease equally at each cylindeR Yes Go to Step 9
NO Go to next step
Is injector operating sound heard at idle? [ Yes Go to Step 7
t- NO Stop engine and go to next step
Yes Check if injector resistance is OK
CT page F3-41 Is there battery voltage at each injector connec-
tor (No.1 (P), No.2 (R), No.3 QV), No.4 (0)) with
ignition switch ON?
Resktance: Approx. 2.110
(at 20*C [68*F))
4 if it is, check wiring
(ECU - Injector)
c3 If it is not, replace itijector
Go to next step
NO
Is there battery v&age at injector resistor (W/R)
I .Yes
with ignition switch ON? Check mjeotor resistor
4 tf OK, check for short circuit in wir-
ing (Injector resistor-Injector)
e3 If not OK,’ replace injector resistor
Check for open circuit in wiring (Main
relay (FUEL INJ relay)-Injector resistor)
Go to next step
t NO 1
Is strong blue soark visible at each disconnected Yes
‘Check ‘high-tension lead
4 If UK. check distributor cap and
rotor .
c3 If not OK, replace high-tension lead
‘-F3-29

F3 TROUBLESHOOTING GUIDE
3TEI ACTION
Is fuel line pressure correct at Idle?
*
Fuel line pressure: 265-314 kPa
12.7-3.2 kgf/cm’, 38-46 psi]
(Two vacuums hose to pressure regulator
disconnected)
304-392 kPa [ 3.1-4.0 kgf/cm’, 44-57 psi 1
(Upper vacuum hose to pressure regulator
disconnected)
INSTALL CLAMPS Yes Go to next step
No Low pressure
Check fuel line pressure while pinching
fuel return hose
4 If pressure quickly Increases,
check pressure regulator
e If pressure gradually Increases,
check for clogging between fuel
pump and pressure regulator
If hose is not clogged, check fuel
pump maxrmum pressure
Connect System Selector to diagnosis connector
and set Test Switch to SELF TEST; is ignition
tlmlng at idle correct after warm-up?
Ignition timing (BTDC): 10 f lo Yes Go to next step
No Adjust tgnrtkon system
8 Dtsconnect water thermosensor connector; does
engine condrtlon Improve? Yes Replace water thermosensor
No
Try known good ECU. does condltlon
Improve?
w page F3-13
Go to next step
Check if injector resistance is OK
w page F3-42 9 Is jqector operating sound heard at Idle?
Yes
No
Resistance: Approx. 2.11 Q
(at 20°C 168*F])
4 If it is, check wlnng
(ECU - Injector)
c3 If it Is not, replace injector
Go to next step IO
Yes Is engine compressron cprrect?
w Section G
No
Engine compression:
1059 kPa 110.8 kgf/cm2, 152 psi)-300 rDm
is strong blue spark vrslble at each disconnected
hrgh-tension lead?’ Check engine
3 Section B2
17
Yes Go to next step
No Check high-tension lead
w Section G
c3 If UK, check distrrbutor cap and
rotor
3 If not OK, replace htgh-tensron lead
Try known good ‘ECU: does condrtron
Improve7
w page F3-3 12 Are spark plugs.OK?
w Section G
l Wear and carbon butld up l Piug gap l Damage Yes
NO
Clean, adjust
13EOi3.334
F3-32.

SUSPENSION i
TECHNICAL DATA TD
I
Item
Specifications
Front suspension
Suspension type
strut
Sprrng type
Coil spring
Type Oil 1
Shock absorber
Damping force Extended
1,470 1150, 3N]
N [ kgf, Ibf ] at 0.3 mls
Compressed 1
686 (70, 154)
Stabilizer Type Torsion bar
Oiameter mm {in]
23.0 (0.91 )
Total toe-in mm (in>
2 f 3 (0.08 f 0.12)
degree
0*12’ f 18’
Front wheel Turning angle Inner
38* f 3*
alignment
degree Outer
300 f 30
(* Unladen)
Camber angle degree
-u045’ f 45’
Caster angle degree
2035 f 45’
Kingpin angle
degree 12010’
Rear suspension
Suspension type
I Strut
Spring type
Coil spring
Type Oil
Shock absorber
Damping force Extended
882 (90. 1981
N I kgf, Ibf t at 0.3 mis Compressed
392 140, 88 1
Stabilizer , Type Torsion bar
Diameter mm [in] ?9.? { 0.75 1
Rear wheel
Totat toe-in mm {ini
2 f 3 (0.08 f 0.12)
alignment degree
0°t2’ f 18’
(‘Unladen)
Camber angle degree
-0020’ f 45’
l Fuel tank Ml; radiator coolant and engrne oil at speciffed levels; and spare tire, jack, and tools in designated poations.
Coil Spring Specifications
Item Wire diameter Coil center diameter Free length Coil identification mark coler
mm [in] mm (in) mm (in] number
M” Ae2
Front With sunroof 14.5
IO.57 1 l32.5-158.5 15.22-6.24 ) 271.5 1 IO.69 ] 3.35 Pink
Green
.
WIthout sunroof 14.4 IO.561 1 132.6-158.6 (5.22-6.241 267.0 I IO.51 ] 3.24 Light blue Red
With sunroof 8.8-l 2.5
[ 1 0.34-0.49 128.5-131.2 15.0~5.17) 334 { 13.151 6.19 Cream -
Rear .
I 1 Without sunroof I ff;;y;4”81 I t28.6-13t.j [5.06--5.16) / 335 113.19) 1 6.23 1 Pink 1 - I
l I Main rdentrficatlon mark color: Indicated on second coil from bottom.’ l 2 Auxiliary identification mark color: Indicated on third coil from buttom.
TD-13

VEHICLE IDENTIFICATION NUMBERS (VIN)
(CHASSIS NUMBER)
JMZ 86835200 5OOOOl-
WIRING COLOR CODE
Color Code
I Color Code
Blue I L 1 Natural
I N
Black
1 B I Orange
I 0
Brown BR
Dark Blue DL
Dark Green DG Pink
Red
Purple
Green
Gray
Light Blue
Light Green G
GY
LB Tan
White
Yellow
Violet P
R
PU
T
W
Y
LG
I V

HARNESS SYMBOL : l‘c (FJ m (E) a (I) m (8) +++ (DR)c (IN) c (FR)* (EM) E (INJ)
FUSE BOX
JOINT BOX
SWITCH

c-(I) JOINT BOX (BLUE)
FFICNT FOG
LIGHT SWITCH
E-27
JB-04
-JB-05

__---
HARNESS SYMBOlm : z (Fj m (E) m (I) m (R) +++ (OR) z (IN) z (FR)z (EM)= (NJ)
REAR SPEAKER
CORD
(BLUE)
SPEAKER LH
FHDRl)
(R-0 (BLUE)
FUSE BOX JB-Of
JB-02 JB-05
JOINT BOX
J-01
AUDlO SYSTEM

WPW POWER OUTSIDE
- MlAROR MOTOR RH
JB-06
JB-02
JOINT BOX FUSE BOX
(BLUE)
F-(I)