Group
2
8
Ign
i
t
io
n
s
y
s
t
ems
D
esig
n and fun
c
t
io
n
-
Sys
t
em desc
r
iptions
EZ
-
115K
EZ-115K - No
.
1 cylinder detector
Since the
B
280 eng
i
ne
i
s equipped w
i
th tw
i
n kno
c
k sensor
s
(o
ne f
o
r each bank of
c
y
li
nders
),
the contr
ol
un
i
t mus
t
be
a
b
le
t
o dis
t
inguish be
t
ween the
t
wo in
o
rder to de
t
erm
i
ne whi
c
h cy
l
inde
r
is
kn
o
ck
i
ng
.
For this purp
o
se
.
t
he high
-
t
e
n
sio
n
lead
t
o No.
1
cylinder is fi
n
ed w
i
t
h an induct
i
ve detec
t
or
(
1
5).
Th
e device cons
i
s
t
s of a coi
l (
16
)
w
ou
n
d on a
c
ore (17
)
surr
o
unding the igni
t
ion lead
(
18
).
Th
e cu
rr
en
t p
ulse
in
d
u
c
e
d
i
n th
e coi
l by the HT
cu
rr
e
nt
in
th
e
l
ea
d
as
t
he
c
y
l
inde
r f
ires is the signal
u
sed by
t
he con
tr
ol
unit t
o
m
ai
nt
ain
the
co
r
-
re
c
t firin
g
order
a
t
all
tim
es
.
Th
e
s
i
gn
al is also
u
sed
to
i
d
e
nt
i
fy
an indivi
d
ua
l
cyli
nd
e
r
a
ff
ec
t
e
d by kn
oc
k
, e
n
a
bling th
e
co
ntr
o
l unit t
o
ret
ar
d t
he
i
g
n
i
t
ion in
th
e cyl
i
nde
r affe
c
t
e
d
.
56
