wantaC6Z

Long story short, bought a mint 11 Grand Sport that was disassembled after an accident. Body shop pulled (and kept) the ECM. I ordered a replacement ECM already programmed by an LS tuner for my vin number. I am searching the forum high and low but can't find a relearn procedure. It is my understand that I may need some sort of relearn procedure to get things to work now. Any help would be greatly appreciated. Thanks.

irok

crank relearn procedure should be done when an ECM is replaced.can be done with GM Tech II scan tool or HPTuning software.it explains how to do it in your factory service manual.Google it and you should find information there