Automotive Secondary Ignition Waveform Measurement

Shane Christopherson

• May 21, 2022 01:22

I have successfully captured a secondary ignition (spark plug) voltage waveform.  Using the Hantek HT-25 inductive probe.  You have to swap the pos/neg leads to invert the signal.  Used 100mV DC/div and 1.00 ms/div time base.

Pokit Pro Secondary Ignition Waveform Test Video

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  opiedog

  • May 24, 2022 20:11

  Outstanding Shane!  You're on a roll. Meter is proving a lot more useful than I ever imagined.

  PS  Used your oscilloscope method to measure cranking voltage drop on my motorcycle.  Dropped from over 12v to almost 3v.  No hope for that battery.

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