MAZDA 323 1989 Factory Repair Manual

MAZDA 323 1989 Factory Repair Manual 323 1989 MAZDA MAZDA https://www.carmanualsonline.info/img/28/57053/w960_57053-0.png MAZDA 323 1989 Factory Repair Manual
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Page 331 of 1164

MAZDA 323 1989  Factory Repair Manual TROUBLESHOOTING GUIDE F 
20 POOR ACCELERATION 
DESCRIP- l Performance poor while accelerating 
TION l idle condition normal [TROUBLESHOOTING HINTS) 
3 Factors other than engine malfunction @ Air/Fuel

Page 332 of 1164

MAZDA 323 1989  Factory Repair Manual iTEP INSPECTION ACTION 
5 Connect System Selector to diagnosis connector Yes 
and set Test Switch to “SELF TEST” and check Check if ignition timing advances when 
for correct ignition timing at id

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MAZDA 323 1989  Factory Repair Manual TROUBLESHOOTING GUIDE F 
TEP INSPECTION ACTION 
9 Check if airflow meter is OK Yes Go to next step 
CT page F-168 
I. Check if measuring plate moves smoothly 
II. Check resistance No Repair or replace

Page 334 of 1164

MAZDA 323 1989  Factory Repair Manual F TROUBLESHOOTING GUIDE 
iTEF 
___ 
13 
14 
- 
15 
__ 
16 INSPECTION 
Change fuel and check if acceleration improves 
Check if A/C cut-off control system is OK 
Check if variable inertia charging syst

Page 335 of 1164

MAZDA 323 1989  Factory Repair Manual TROUBLESHOOTING GUIDE F 
21 RUNS ROUGH ON DECELERATION/BACKFIRE 
IESCRIP. 
*Engine runs rough while decelerating and abnormal combustion occurs in exhaust system 
MON l Transaxle in normal condition T

Page 336 of 1164

MAZDA 323 1989  Factory Repair Manual F TROUBLESHOOTING GUIDE 
r TEP INSPECTION 
ACTION 
6 Check if fuel cut operation is OK 
Yes Go to next step 
CT page F-143 
No Try known good ECU and check if con- 
dition improves 
w page F-149 
7 Ch

Page 337 of 1164

MAZDA 323 1989  Factory Repair Manual 22 KNOCKING 
DESCRIP- *Abnormal combustion accompanied by audible “pinging” noise 
I-ION 
[TROUBLESHOOTING HINTS] 
3 Incorrect ignition timing (Too advanced) 
@ Air/Fuel mixture too lean 
3 Carbon

Page 338 of 1164

MAZDA 323 1989  Factory Repair Manual F TROUBLESHOOTING GUIDE 
STEP INSPECTION ACTION 
5 Check for correct fuel line pressure at idle Yes Check if fuel line pressure decreases 
w page F-129 when accelerating quickly 
Fuel line pressure: +

Page 339 of 1164

MAZDA 323 1989  Factory Repair Manual TROUBLESHOOTING GUIDE F 
23 FUEL ODOR 
DESCRIP- 
*Gasoline odor in cabin 
TION [TROUBLESHOOTING HINTS] 
@ Poor connection or damaged at fuel system or evaporative emission control system 
@ Charcoal c

Page 340 of 1164

MAZDA 323 1989  Factory Repair Manual F TROUBLESHOOTING GUIDE 
I 24 I EXHAUST SULFUR SMELL I 
DESCRIP- 
l Exhaust gas smells abnormally 
TION 
[TROUBLESHOOTING HINTS] 
High sulfur content fuel used 
STEP INSPECTION 
1 
Change fuel to anot
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