I can chime in as I have GH e30 an ajp e30 each with all the same mods. the GH will show +7 kr and drop my oar to -39 or better with all the same on ajp my oar is -96 all the time with at best +.09 KR. imo each car is sensitive in it's own way. Matt knows of this problem but has yet to deal with it on our platform. He has a standard go to list of items and some get fixed by this. 1/3 do not and he has not willing to addresses it. I think his focus is on the newer stuff and rightfully so. I think a lot of it is his lower rpm load settings and this is his part of his trans shit parameters. GH has helped this platform is so many way and I have the turbos and IC. This is a huge help for all of us.
Very well stated. It ***** that it is so prevalent, because it really makes it difficult to put forth the energy to help someone with KR issues when they have the GH tune. OP may very well have a physical problem leading to an elevated OAR, but I believe the smartest thing to do is first rule out GH.
Some people need to learn that what works great on some cars is not guaranteed to work well on others or in different climates.
You, myself and several other members here have had heavy KR issues with a myriad of 93 octane flavors, all of which have been isolated to none other than the GH AO tune. There's also been a pretty good correlation between cold weather and KR, again specific to the GH AO. It has been discussed in countless threads. Note, between all the other tuners combined there has not been a single similar discussion that I know of in this forum.
Also take note on how the whole subject of this thread is working off the implicit presumption that the GH tune requires mixing fuel to be happy. When the **** fuel excuse has been muttered so many times that adding e85 is the de facto procedure for running an alleged pump gas tune, well, that really says all there is to say.