Mitsubishi Eclipse Workshop Manual page 229

IGNITION SYSTEM
-
Service
Adjustment
Procedures
16-17
o
o
o
o
o
o
o
t
Examples
of
abnormal waveforms
Abnormal waveform
Wave characteristics
Cause
of
probrem
Example
1
01PO2t5
Spark
line
is
high and
short.
Spark
plug gap is too
large.
Example
01PO2r6
Spark
line
is low
and
long.
and is
sloping.
ALso.
the second half
of
the
spark line
is
distorted. This
could be
a
result
of
mis-
firing.
Spark
plug gap is
too
small.
Example
o7?o217
Spark line
is low
and
long,
and
is
sloping.
However.
there is almost no spark
line
distortion.
Spark
plug gap is
fouled.
Example
4
Spark
line
is
high and
short.
Difficult
to
distinguish
between
this and
abnormal
wave pattern example
1.
Spark
plug cable is
nearly
falling
off.
(Causing a
dual
ignition)
Ermple
5
I :L".
, .,.
,rS;
: :::j
l,
:=.-?t
a
sa\
''::
No waves in wave
damping
section.
Rare
short
in
ignition
coil.
Fntua9010