Mazda 121 - Dechoke Control System Description; Dechoke Control System Operation

DECHOKE
CONTBOL
SYSTEM
tu'rJis O"C
tiz"n
or
uelow.
This allows
the spark
plugs
to dry
and
purges
excess
fuel
frorn the cylinders
DECHOKE
CONTROL
SYSTEM
OESCRIPTION
iJtacifitate startinq
tne engine
it the spark
plugs
become
fouled, such
as when the
engine
is flooded,
fuel
injection
rs
cut
it th; thronle
valve
is held wide open
whi'e
cranking the engine
if the engine
coolant
tempera
SYSTEM OPERATION
1. Ve4fu that the enqrne
coolant
temperaiure
is below ooc
(32oF)
2. Verii
that the enaine
will not slart
when cranked
at normal speed
with the throttle
valve
fully
3. lf the engine starta,
inspect
the throttle
sensor.
(Reier
to
page
F-122
)
and the ECU terminal
1U
(Reler
to
page
F-116.)
F-l06
open.
voltage.
CFANK
ANGIE
SENSOE
THFIOTTLE SENSOF
WATEFT THEFMOSENSOR
INJECTOF
DEIEFMI.
NATION
cur