Mazda 121 - Page 204

F
TROUBLESHOOTING
GUIDE
;TEP
INSPECTION
acTtor,l
6
ls there air
leakage oi
intake air system com_
ls air cleaner
elemenl
clean?
s
page
F-62
Beplace
ar cleaner
elemenl
8 ls
luel ine
pressure corect at idle?
c7
pag€
F-94
zgs-zzi
rpa
(z.l-z.a
rg/cm', 34-40
psD
Does iue
Ine
pressure
decrease
when
accelef anng
quickly
+
li
decrcases,
check
tuel
pump
maxlmum
pressure
17
Page
F-91
ll OK
check fuel
line and filtef
ior
cloggrng
+
ll not decr€ase,
So
to
ne)d slep
Check
tuel line
pressure
while
pinch
+
ll fuel
line
pfessurc
quickly
rn
creases,
check
pressure regulalor
+
lf luel line
pressure gradually ln'
creases,
check
tor
clogging
be
iween
iuel
pump
and
pressure
lf not cLogged, check
luel
pump
maximum
pressure F
Page
F-91
Hlgh
prcssure
Check
af tuel return
line is clogged
+
ll
oK, replace
pressure
regllalor
t7
page
F-95
4
li
not OK, replace
I
Bemove air
cleaneri s there any
carbon depost
or drn
In njecton bo4,r/
- i -
r t
'{l-\-
Clean
No
10 Are spa.k
plugs
OK?
17
page
G-19
WEAF AND
CAFBON
BUILDUP
(0.039
-0.044|
AURNS
DETERIOBATION
in)
F-48