LAUNCH
X431 GDS Scopebox Manual
Fig.4-9
4.6 Secondary-direct ignition analysis
Connection
:
1) When the high-voltage wire is exposed, plug the BNC end of
secondary ignition pickup into CH1/CH2/CH3/CH4 channel of
Scopebox, then connect the high-voltage clip to high-voltage line,
and crocodile clips to ground.
2) If no high-voltage wire exposes, dismantle ignition coil of tested
cylinder and use direct ignition extension cord. Connect one end
to ignition coil which should be grounded via direct ignition
grounding wire, and insert the other end into cylinder to joint with
spark plug. Then plug the BNC end of secondary ignition pickup
into CH1/CH2/CH3/CH4 channel of Scopebox, then connect the
high-voltage clip to high-voltage line, and crocodile clips to
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