So I'm gonna start with saying I'm completely new to anything tuning with these cars. I bought a pimpxs used in planned to use with my 93 gt. Cars is basically stock 5.0 5 speed current. After hooking the ecu to the harness what do I do. What software what drivers what programs do I need to get the car to start ect.
What did the previous owner provide you with other than the ECU? It originally came with a USB cable, special MAP hose, USB flash drive (contains software, base tune, license, startup guide, etc.), jumpers, and a sticker. Everything but the sticker is required to use the ECU. We sell an accessory pack on our site for this exact purpose (sellers rarely provide buyers with everything the ECU came with, and the license isn't transferable anyway).
The startup guide is what tells you how to set everything up (and don't bother hooking it to the harness until you follow those instructions as you'll have to install jumpers in the ECU).