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Known good waveform

  • WrenchWizard88
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1 month 2 weeks ago #92266 by WrenchWizard88
Known good waveform was created by WrenchWizard88
Good morning fam!!! I was diagnosing a 2004 pontiac sunfire with a 2.2l eco and I was wondering if anyone by chance had a known good waveform for ignition. I took a primary ignition and current ramp capture and wanted to see if there was one I can compare to if anyone can assist or point me in the right direction I would appreciate it thank you!.

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  • Chad
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1 month 1 week ago #92270 by Chad
Replied by Chad on topic Known good waveform
Post your captures and what symptoms/problems that you are having, and we'll help you analyze them. 
"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 week 6 days ago #92355 by WrenchWizard88
Replied by WrenchWizard88 on topic Known good waveform
My apologies for the late reply so I ended up figuring out the issue on the vehicle it ended up being a lot more then just timing some roller rocker arms ended up breaking in half which lead to no compression and timing chain guides where shot as well.

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1 week 5 days ago #92360 by Noah
Replied by Noah on topic Known good waveform
Oh wow! The only time I have seen broken rocker arms was because valves and pistons made contact after jumping timing.
"Ground cannot be checked with a 10mm socket"

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