Mazda 121 - Page 182

F
TROUBLESHOOTING
GUIDE
ls iu6l lin€
pressure
correct
al idle?
t7
Plge
F-94
Fuel
line
pre$uaa:
235-275
kPa
(2.4-2.8 kgL/cm" 3{-40
p6i)
Check
luel line
pressure
whil€
pinch_
ing
iuel r€lum hose
+
lf fuel line
pressurc
quickly
in_
creases,
check
pressure regulator
+
ll fuel line
pres$rre gradually in_
crcases,
ch€ck luel
line lo. clog_
ging
betwe€n
fuel
PUmP
and
pr€€sure regulalor
ll
nol clogged, check
tu61
PumP
maximum
pressure
c?
Page
F-91
High
prcs3ure
ls
tuel rettim hose
clogged or
fes
+
ll OK, replace
pressure regulator
-
Page
F94
4
ll nol oK, repar
or replace
hose
Replace ECL,
c7
Page
F-112
Iry known
good
ECU;
does condition
lmprove?
Change
fuel lo
another
brand
F-26