Mazda 121 - Page 212

F
TROUBLESHOOTING
GUIDE
Does if fuel
lroe
p€ssure decrease
when acceleraling
qulck\,
+
ll decrcas€s,
check
lor clogging
b€trveen
luel
pump
and
pressure
regulator
4
ll not decrease,
go
to
next step
ls fuel
line
presswe
correct al idle?
t?
PaEe
F-94
Fuel
line
pres3ure:
235-275
kPa
12.4-2-a Wlcm',
3!t-40
psl)
Check
fuel line
pressurc
while
pinch_
+
It fuel
line
prcssure
qulckly
n_
creases, check
pres€ure
regulalot
+
ll fuel line
pressure
gradually
in-
creases,
check
lor cloggrng
bs
tween
luel
PumP
and
Pressure
regulator
lf
not clogged,
check luel
PUmP
maximum
pressure
r?
Page
F_91
ls
cooling
system
OK?
.Themostat
.7
Page
E-8
.
Et€ctic cooling
lan
.7
Page
E-1 1
.Rad,ator .?
page
E-7
Replace
EcU
1:7
Pege
F-112
Try known
good
ECIJ and check
il conditon
Change
tuel
lo another brand
or use
F-56