Mazda 121 - Page 174

F
TROUBLESHOOTING
GUIDE
tNsPECT|Oll
ACTION
Connect
dlagnosis
connector
terminals
F/P.and
GND
with
iumper
wirei
is fuel
pump
operarng
solnd
evided
wilh isnilion
switch
ON?
-7
pege
F-92
GND
;)).
Check
if iuel is
iniecled whib crankng
englne
n this condftion
+
lf injected, check circult
opening
4
ll not injecred, check
inieclor
lof
clogging
and if lue
is in tank
5
ls there
conllnuily
belween
lLlel
pump
connecior
@
and
@?
Check cncuit
openrng relay
c7
page
F-93
6 ls therc
approx.
12V momenlariy
at
ECU 2V ler_
m naL
whib cranking
engine?
(Engrne
signal
monitor
green
and red
amps
ilash)
Try io replace
njector
(lniector
stuck)
No Check
injeclor
lor continuity
+
lf OK, check
wlfinS
related to
ECU terrninals
2Y, 2V, 2U,
and
+
ll not OK, rep ace
injeclor
F-l8