Bought my MPVI3 to tune my 01 Silverado and ended up finding out it was compatible with my 350z. I've done countless hours of research on GM tuning but I can't seem to grasp the tuning for my Nissan that has very little info on.

I feel very lost with this. I can't seem to change anything that will affect my lambda/AFR readings (very lean at full throttle and lower RPM's: 2500-4000)

I've only disabled immobilizer (08 ecu in an 07 vehicle) and adjusted fuel compensation table in the areas that are lean. I feel like this is not what I need to be looking at and adjusting.

Can anyone point me in the right direction of where to start-over?