Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1086

STANDARD WAVEFORM
Observation Conditions
Function
Pattern height
Pattern selector
Engine revolutions
kV
Ignition voltage
(point D)
Secondary
ignition
voltage
waveform
Observation Condition (The only change from above condition is the pattern selector.)
Pattern selector
kV
Secondary
ignition
voltage
0
waveform
2
ENGINE ELECTRICAL -
Secondary
High (or Low)
Raster
Curb idle speed
Spark line (point A)
Wave damping
reduction section
(point B)
Dwell
section
Point C
Display
No. 4 cylinder
Neutral section
Ignition System
No. 1 cylinder
No. 2 cylinder
ignition noise
16-31
Time
No. 3 cylinder
ignition noise
Time