99 c2500 5.7 4l80e 2wd where to start?

[Tumbleweed210]

I'm not sure where to start with this as my part number tags on the black box ecu are gone...I am waiting on a cable for my laptop. And I've already down loaded Tuner Pro RT, but waiting to register so I can data log for a bit before trying out a .cal or bin type file. Did I forget to mention that I know next to zilch about this stuff. Thanks in advance for any advice y'all might be able to give.

[dave w]

I'm curious what cable did you purchase for your laptop?

Gearhead-efi link for OBD2 tuning: http://www.gearhead-efi.com/Fuel-Inj...2-OBDII-Tuning Maybe someone has posted a TunerPro RT .adx file for the 1999 C2500?

dave w