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secondary ignition

  • hayderhazim
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3 years 7 months ago - 3 years 7 months ago #54766 by hayderhazim
secondary ignition was created by hayderhazim
can you explain why is the sparkline downhill ?? Hyundai Elantra 2017 Mpi coil on plug
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Last edit: 3 years 7 months ago by hayderhazim.

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  • juergen.scholl
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3 years 7 months ago - 3 years 7 months ago #54767 by juergen.scholl
Replied by juergen.scholl on topic secondary ignition
Short answer is because of your scope and its settings.

The whole waveform is inverted, you can see this also when the coil is turned on. The firing voltage seems to reach around 8 to 10 kV, as you kV/div shows 10kV. You may get confused by the long spike that looks like a normal firing event/break dow voltage but probably is just an interference/fly back. Otherwise you´d have more than 35kV and this coul not make for the 2 ms burntime.

It looks like you are using a hantek scope and it might not be up to the task. Make sure you did not select the invert feature.
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Last edit: 3 years 7 months ago by juergen.scholl.
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