Mazda 323 1992 - Poor Acceleration

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 mixture too lean
*Clutch slipping l Fuel line pressure decreases
l ATX slipping l Fuel injection malfunction
l Brake dragging @ Poor ignition
l Low tire pressure
@ Low engine compression
l Incorrect tire size @ Alcohol blended fuel used
l Over-loaded
3 Low intake arr amount
*Throttle valve not open fully
*Clogging in intake air system
Check factors other than engine
CT Section H
c7 Section
P
ing accelerator fully
w page F-l 14
w page F-l 12
Checker with ignition switch ON
w page F-83
rminal 1 F voltage w page F-150
Specification: Battery voltage
(Ignition switch ON)
W: SELF TEST
c3 If OK, replace ECU w page F-149
r;3 If not OK, check wiring between
ECU and Self-Diagnosis Checker
Clearance between throttle
lever and stopper
0.1 mm (0.004 in)
l.Omm (0.039 in)
O.lmm (0.004 in)
0.6mm (0.024 in)