I don't have a stock L28ET. My set up is exactly what the OP is asking about. So really I'm not off topic at all.
I never once said it was "easy" I said my car runs good with the factory EMS. I didn't say it ran great, perfect, or otherwise. My car starts right up and drives, once I do some minor tweaking it will be just fine. To me that's "good". Your definition of a good running car must be different since you don't do any modifications and don't experience the trials and tribulations when working with a highly modified vehicle.
I'm not going to waste my time explaining to you what happened between good running and post #31. Your just fishing for something to further argue about. Injectors were changed as were sensors. I've had to fix what the previous owner has done to my car because they really did a half ass job. Before making any more assumptions go to my build thread and take a little look see, try not to crap in it while your there.