Launch X431 Scopebox - Page 98

LAUNCH X431 GDS Scopebox Manual
4, 6; and cylinder numbers on the left side, from the front to the back
are as follows:1, 3, 5; then the ignition sequence is: 1－6－5－4－
3－2.
The Figure 4-6 below shows the normal ignition waveform of
distributor ignition system, the upper one is th
e secondary waveform,
and the lower one is the primary waveform.
The secondary waveform:
A section is contact open period; B section is make contact period,
which i
s the
ma
gnetizing field of ignition coil.
Fig.4-6