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STANDARD WAVEFORM
Observation Conditions
FUNCTION
PATTERN HEIGHT
PATTERN SELECTOR
Engine Speed
kV
Ignition
secondary
voltage
waveform
ENGINE ELECTRICAL –
WAVEFORM CHECK USING AN ANALYZER
<MPI>
Ignition Secondary Voltage Check
MEASUREMENT METHOD
1. Clamp the spark plug cable of the No. 1 cylinder with
the secondary pickup and check the waveform.
2. Connect the secondary pickup to the other cylinders in
turn and check the waveforms for each cylinder.
SECONDARY
HIGH (or LOW)
RASTER
Curb idle speed
Ignition
voltage
(Point D)
Dwell
section
(Point C)
Ignition System
Spark line
(Point A)
Vibration damping
section (Point B)
16-41
16300170199
Time
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