Launch X431 Scopebox - Page 91

LAUNCH X431 GDS Scopebox Manual
ignition is invalid.
X-431 GDS can test and analyze the primary/secondary signal for
various engine i
gnition systems.
In main menu, click "Engine ignition waveform" - "Configuration" to
enter the interf
ace shown as Fig. 4-1:
Fig.4-1
This interface includes six engine ignition analyses:
Primary-Distributor ig
nition, Primary-Simultaneous ignition,
Primary-Direct ignition, Secondary-Distributor ignition,
Secondary-Simultaneous ignition, and Secondary-Direct ignition.
4.1 Primary-distributor ignition analysis
Tips:
Generally, the sequence of ignition is (The specific sequence is