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IGNITION SYSTEM
IGNITION SYSTEM INSPECTION
•
If there
is
no
spa
rk
at the plug,
check all cennec-
,
-
-- - - - - - - : - - :
--
- - - - - - - - ,
tions
for loose or poor
contact
before measuring
DIGITAL MULTIMETER
•
~~~h ~~a~:C~~~~nded
digital multi meter
or a
,
. ~.~_-,._---
..... ' \ \ ..
~
..
;
.
~ ~;:,dua~
,
~
I
=
e
10
MOJDCV
commercially
available digital multi meter
with
.
an impedance
of
10 M!lIDCV minimum.
•
The display
value
differs depending upon the
:
'.
.
internal impedance of
the multi meter.
<.
.
00
Connect the peak
voltage
tester
(lgnitionMate,
U.S.A. only) or peak
voltage
adapter
to the digital
multi meter.
TOOLS:
IgnitionMate
peak
vottage tester MTP07-0286
(U .S.A
.
only) or
Peak
voltage adaptor
07HGJ·
0020100
(not
available in
U.S.A.)
w
ith
commercially available
digital multi met er
(impedance
10
M
fl/
DCV
minimum)
IGNITION COIL PRIMARY PEAK
VOLTAGE
Check all system
connect
ions before
inspection.
If the
system
is disconnected,
incorrect peak vol tage
might be
measured.
Check
cylinder compression and
check
that the
spa rk
plug is
inst alled
correctly.
Remove the
fu
el
tank
(page 3-8).
Shift the transmission into neutral.
Connect a
known'good
spark
plug to the
spark
plug
cap
and
ground
the
spark
plug to the
cyli
nder
as
done in a
spark
test.
PEAK
VOLTAGE
ADAPTOR
With the
ign ition
coi
l primary
wire
connected, con-
re;;~~~~~i=====~
nect the peak
voltage adaptor
to
the
ignition coi
l
.
TOOLS
:
IgnitionMate peak
voltage
tester
MTP07·0286
(U
.S.A.
only) or
Peak voltage adaptor
07HGJ-0020100
(not available
in
U
.S.A .)
w
ith commercially
available
digital multi meter
(impedance
10 M
fl/
DCV minimum)
CONNECTION:
Body
ground 1+)
- Black/ yellow
H
Shift
the transmission into
neutra
l.
Crank the
engine and
read the ignition
coi
l
primary
peak
voltage.
STANDARD:
100 V minimum
If there
is
no
voltage, check
the continuity
in
Black!
yellow
and Green/black
wires
between the
ignition
coil and
ICM.
If the
wires
are
good,
follow
the checks described in
the troubleshooting
chart on
page 18·4.
18-5
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Table of Contents
Troubleshooting
