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secondary ignition different type of waveform
- gilad.benyosef
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1 year 3 weeks ago #74249
by gilad.benyosef
secondary ignition different type of waveform was created by gilad.benyosef
hi all
someone known with this secondary ignition waveform ? its a 2022 suzuki jimnny C.O.P , measured with H502 (Hscope) using hantek AT25 probe.
my voltage config is wrong , should divided by 20 , sprak line is around 48kv , all cylinders shows the same waveform
i wonder if it can be diagnose , burn time dewll time etc
someone known with this secondary ignition waveform ? its a 2022 suzuki jimnny C.O.P , measured with H502 (Hscope) using hantek AT25 probe.
my voltage config is wrong , should divided by 20 , sprak line is around 48kv , all cylinders shows the same waveform
i wonder if it can be diagnose , burn time dewll time etc
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1 year 3 weeks ago #74253
by Noah
"Ground cannot be checked with a 10mm socket"
Replied by Noah on topic secondary ignition different type of waveform
Is there anyway you can post a screenshot of the pattern?
I'm not a fan of downloading attachments...
I'm not a fan of downloading attachments...
"Ground cannot be checked with a 10mm socket"
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1 year 3 weeks ago #74255
by gilad.benyosef
Replied by gilad.benyosef on topic secondary ignition different type of waveform
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1 year 3 weeks ago - 1 year 3 weeks ago #74259
by Chad
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic secondary ignition different type of waveform
How and where are you capturing the waveform? Judging from the dwell section, your waveforms are upside-down. Does your scope have an invert function?
If we invert it,....
it still looks terrible but, now, it looks like, possibly, a shorted secondary with, absolutely, no gap to jump. Is this a 2-wire coil? Can you capture a primary voltage waveform? Do you have an amp clamp to capture a current ramp of the coil?
If we invert it,....
it still looks terrible but, now, it looks like, possibly, a shorted secondary with, absolutely, no gap to jump. Is this a 2-wire coil? Can you capture a primary voltage waveform? Do you have an amp clamp to capture a current ramp of the coil?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Last edit: 1 year 3 weeks ago by Chad.
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1 year 3 weeks ago #74260
by gilad.benyosef
Replied by gilad.benyosef on topic secondary ignition different type of waveform
Sorry im a bit rookie , how can i plug primary voltage ? Just back probe the signal wire ? I think its a 3/4 wires coil i need to check
Its a brand new car all cylinders shows the same signal
I have an amp clamp ill try to pick signal tommorrow
Thank you for response
Its a brand new car all cylinders shows the same signal
I have an amp clamp ill try to pick signal tommorrow
Thank you for response
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1 year 3 weeks ago #74261
by Chad
Back-probe the Coil Control wire. Expect a voltage spike of about 400 volts. Make sure that your scope is rated for voltage of this range. If it isn't, you will have to use an attenuator.
However, this can, only, be done with 2-wire coils. Unfortunately, we do not have direct access to the Coil Control wire on 3 and 4-wire coils. We, only, have access to a transistor that controls the coil.
Are you trying to diagnose problem? Or, are you just trying to understand what you are seeing in waveforms captured from a good, running vehicle?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic secondary ignition different type of waveform
how can i plug primary voltage ? Just back probe the signal wire ?
Back-probe the Coil Control wire. Expect a voltage spike of about 400 volts. Make sure that your scope is rated for voltage of this range. If it isn't, you will have to use an attenuator.
However, this can, only, be done with 2-wire coils. Unfortunately, we do not have direct access to the Coil Control wire on 3 and 4-wire coils. We, only, have access to a transistor that controls the coil.
Are you trying to diagnose problem? Or, are you just trying to understand what you are seeing in waveforms captured from a good, running vehicle?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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1 year 3 weeks ago - 1 year 3 weeks ago #74266
by gilad.benyosef
Replied by gilad.benyosef on topic secondary ignition different type of waveform
so what are your suggestion for 3/4 wires coil? just use an amp data ?
do you think perhaps my setup giving me a false measure? HT25COP and H502 (Hscope) ,though i manage to get good signals from man different cars
Last edit: 1 year 3 weeks ago by gilad.benyosef.
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