Thanks all. I wasn't sure if it was some kind of checksum for the programming to verify an unchanged BIN. Won't worry anymore about it :)

Thanks. I believe my ECM to be untouched from the factory and just wondering how to verify this. Should that code show up inside the BIN file? If not, is there anyway to verify that I have a factory...

The ECM in my Bird has a 16202081 and BKNB on it. I backed up the BIN with FlashHack (great program) and when I look at the BIN I see the calibration, 16202081, but I do not see the BKNB inside it....

Hi. Just picked up my FireBird a couple months ago. Starting to learn how to tune this thing. Always had carb cars. Just backed up the ECM last weekend. Now I am reading up on tuning.