5.7L engine replacement 97 tahoe

[SunlitComet]

this would not be codes active or stored it is proprietary gm data. mode 6 as it were. this is not basic ect or 02 readings or the like. this is intense data that gets into the heart of just the basic obd2 data. this gives you timing in the milli's, percentages, voltages, on-and off's and functional read-outs of the inputs and outputs of the pcm of all kinds of stuff. does your scanner see that at all? what do you use btw?

 

[CG97Tahoe]

Ok, my scanner doesn't show that much data. So I'm in the dark there. It's a cheaper autel. Not anything special. Just shows OBDii codes and basic descriptions

 

[SunlitComet]

what i was trying to find out is if this kick or drop-off was a random misfire under load or a tc lock-up glitch. if you can't see that on yours perhaps find a shop that can read that data. while driving it. if it does not show a misfire count the the tranny is having some difficulty with itself and the clue as to what is wrong should be in the mode 6 data. it takes a real good mech to interpret it.

 

[CG97Tahoe]

Thanks for the info, I'll take it in and have it checked out. I'll post an update once it's figured out