Mazda 121 - Page 170

F
TROUBLESHOOTING
GUIDE
DIAGNOSTIC
INDEX
TROUBLESHOOTING
ITEI
OESCRIPTION
PAGE
Will nol crank or
cranks slowly
Reier
to Engine Electical
System
G--4
2
Engne cranks
al
normal spg€d bul shows
no sign
ot
lring
F-17
Engine
crank€ at
normal speed but
shows only
par_
tial combuslion
and
will nol conlinue to
run
F- r9
Engine slads
nomally
when cold, but will
not slan a,
ter running
and hoi soaked
F-21
Eng,ne cranhs
al
rormal speed bul reqJies
eices
sive
cranking time
belore staring
F-23
Same condition
as
No.s when engine cold
Reslans
normally after
wa|m_up
F-25
7
Same condltion
as No.5 afler
running ano
hot
Starts
noimally when cold
F-27
8
Engine stalls
ai dle
Engine stalls or
vibrates
excessively at
|dle
F-29
9
Engine stalls or vlblates
excessively
al idle dlrng
F-31
10
Engine runs nomally
at idle during
watm'up bul
vibates excessively
or
stalls aft€r warmlp
11
E/L ON
Engine stalls
or v brales
excessively al
idle wrcn
}JC, P/S, or
E/L ON
F-35
Rough idle/Engine
stalls
just
atier sta(ng
Engine stalls of
v brales excessively
only
lust
aner
staning
(acceleralion
Jrom
idle)
F-36
13 High
idle
speed
atter
wam-up
ldle
speed
excessve
after wam_up
FJE
14
ldle moves up
and down/ldle hunting
Engine
speeds up and
down
pe.iodically
at dle
F-39
Engrne slalls on deceieralion
E^grne une^pecledlv
sloos
run'nng \th
le dFcele'ar
ing or atler decelefallo.'
F41
16
Eng,ne sralls suddenly
(lntemiten0 Engine
intemiltent
y
slops
runnhg
F42
17
Hesitates/Siumbles on
acceleration
Flat soot occurs iust
alier acceleralor
depressed
or
mlld
jerking
occurs
duing acceleranon
F-43
18
Surges
Unexpected
change
in engne sp€€d
which ls lsually
rep€lilive
F--45
19
Pedo.mance
poor
under
lmd when throltle
valve
lvlaximum speed
r€duced
F-17
20
Pedormance
poot while acceleral,ng
F-50
21 Runs
rough on deceleralion/Backlire
Enq,le
runs rough while deceeraing
3nd abrornal
combustion
occurs
in exhaust sYstem
22
Abnomal combustion accompanied
by audible
''pinging"
nois€
F-55
23
Gaso
ine
odor
in cabin
F-57
24
Exhaust
gas
smells
like
rotten eggs
F-58
25 High oil
consumpnon
Oil consumplion
ercessNe
F-58
26
Fuel economy unsalislactory
F-59
F-l4