it's easy just follow the RPMs on the left. That's a Nissan Data scan map trace I did of someones car. Rpm on this is top to bottom but on Tuner RT pro is bottom to top. The Yellow you see is motor going from low RPM to high RPM. Those are the cells that need to be adjusted. Well not all of it. The Blue part of the map is the 02 feed back which is computer controlled. Everything out of that is all manual control aka you change it yourself cause the computer isn't reading the 02 there.