Helllo, Newbie here to learn

Hello, I am here to learn, just picked up a 2003 5.3, It's an L59 flex engine, hopefully I can make it work for a future off road rig. Want to set up my PCM to run on a stand first and go from there. I built a desk rig for programing and used my scan tool, It works! Now it's time to unlock the immobilizer, Wish me luck!

Attachment 18775

So, after ordering 3 different ways to connect, I finally am able to read my PCM with my laptop, it's now a sharp learning curve about XDF and BIN files.