LAUNCH X431 GDS Scopebox Manual
Fig.4-12
4.7 Waveform analysis mode
The ignition secondary single-cylinder waveform test is mainly used
to:
a. Analyze the ignition dwell angle of single cylinder.(ignition coil
charging time)
b. Analyze the
capability of ignition coil and secondary high
tension circui
t (from ignition line to ignition voltage line).
c. Find the improper mixture A/F ratio of single cylinder (from
combustion li
ne).
d. Analyze the capability of c
apacitance (platinum or ignition