I've never logged misfires before and I'm not familiar with the terminology, such as "mode index". So I'm very much a newbie as far as misfire logging is concerned.
I logged them tonight to see if this was the reason I would occasionally lose TCC lockup. I think it is the reason. Near frame 4375, cylinder #7 logged quite a few misfires. Shortly thereafter, I lost TCC lockup. Later, I cleared DTC's (even though none were logged according to the HPT scanner), and TCC lockup started working again.
My main concern however is that I see many more misfire counts on cylinder #7 than any other cylinder.
What's the first thing to check? Plug wire? Plug? Injector? Coil? Swap these one at a time with another cylinder and see if the misfires move to that cylinder?
What would be considered a normal misfire count?
I have an LS2 with LS9 cam, LSA heads, Circle-D 4l80e converter (low stall).