Nistune Forums

I just installed a Z32 MAF on my SR20DET red top (stock internals, stock boost, ISR RS3871 turbo. I went for a quick drive and I noticed that when at WOT, full boost in 3rd, the ECU is only accessing the middle of the fuel map. The AFR stayed above 14 the whole time. It even went over 15 a few times...

I'm looking for a starting point or any help I can get for my first Nistune tune. The car is as follows: S13 180sx with a redtop SR20DET Stock (but overhauled) internals 550CC injectors Z32 MAF Enjuku 3871 Turbo (Similar to 2871) New Innovate LC-2 Wideband Front mount intercooler 3 inch exhaust Inta...