2012 Durango Misfire Mystery
- BetterCallBrody
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- BetterCallBrody
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ShopStream Connect
drive.google.com/file/d/1jlkwNJ0wHFw3t6I...tpa/view?usp=sharing
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"Understanding a question is half an answer."
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- BetterCallBrody
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The current draw inconsistency between the three screen shots?
Yes. All three traces have a dwell of 3 ms. The top trace ramps all the way until turn-off. The other two plateau, after just 1 ms.
I know there is a zoom difference but, I can see turn-on oscillations on the bottom trace, but not the middle trace. The middle trace stands out as shorted, to me. But, but the turn-on oscillations, on the bottom trace, make me hesitate to say that IT is shorted.
I think, on these, I would do a resistance measurement, between Primary and Secondary.
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"Understanding a question is half an answer."
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You were questioning the coil Driver. You want to see the voltage get pulled all the way to ground during turn-on. You, also, want the turn-off to be instant and complete.
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"Understanding a question is half an answer."
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- BetterCallBrody
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- BetterCallBrody
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Also, it won't let me upload the vsm's, want me to email them to you?
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BetterCallBrody wrote: Also, it won't let me upload the vsm's, want me to email them to you?
There is a trick to upload the .vsm files. Just change the file extension to .psdata.
(or, any of the Allowed file extensions--- Allowed file extensions : jpg, jpeg, gif, png, txt, rtf, pdf, zip, tar.gz, tgz, tar.bz2, PSDATA)
For example: change the file name from waveform.vsm to waveform.psdata. Or, just add the .psdata extension to the end: waveform.vsm.psdata
Or, email them to me:
ssautomotive13@gmail.com
"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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- BetterCallBrody
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BetterCallBrody wrote: Fixed the swapped wires Friday evening and re-checked waveforms and all is good now. Can't believe the coils were even sparking, guess thats a 2 wire coil thing? Also seems like it should've been throwing a circuit code of some sort!
That's great!
Anyway I'm still emailing you the vsm's. Maybe you can post them here for reference
Good. I'd, still like to see them.
now we know what reversed coils look like.
:woohoo: Now, I am going to have to play/experiment. Thanks for the update!
"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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