So I have a an 2001 gmc Sonoma with a 0411 ecm. I am getting ready to do a 5.3 Ls swap into it. I know I have to do re pinning/ add pins to the ecm . What I need to know is what do I have to do with editor? Do I need to do an operating system change? I have an original stock 5.3 tune from another 0411 that I used to run in my other truck, can I just flash that to the ecm?
