Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Without the scaling and some information about the kind of ignition system it is not possible to make comprehensive, meaningful comments.....
Whatsoever, the yellow trace seems to be primary current and shows a clean cut off. The green voltage trace shows a lot of turbulance, the overall burntime seems to be 1 to 1.2 ms?? The coil does have some reserve capacity as indicated by the oscillations...
Are you familiar with the ignition scope part of your tool? What is the actual problem with this car?
An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.
Short firing line with a higher kv spark and turbulence in the first half of the spark line IMO indicates external resistance. Spark occurring outside the cylinder.
"an open mind let's knowledge flow in and wisdom flow out for a man who has neither never listens to those who have both".
Being wrong doesn't bother me, it's being right and not understanding why that does
Short firing line with a higher kv spark and turbulence in the first half of the spark line IMO indicates external resistance. Spark occurring outside the cylinder.
Though there is critical information missing I can't determine that the spark is taking place out of the cylinder.Also a firing time of 1ms or 1.2 still may be in line.
More qualifying information needed to make a meaningful statement.... (if I had to I would guess a problem in the secondary, possibly spark plug)
An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.
Last edit: 3 years 5 months ago by juergen.scholl.
Topic Author
