Let me preface this by saying, I only do a limited number of LS based stuff every year. Recently I've been asked to do more and more, so I'm on a steep learning curve.
Customer has a 2008 TBSS with some 3rd party software on the PCM. Customer installs supercharger and requests I tune it (at this time, the vehicle will start and run). When I arrive the PCM and TCM are locked and I can neither read nor write to either unit. GM technician attempted to wipe them clean and could not. Customer sourced a new PCM and TCM from junkyard from a 2008 Malibu. I licensed a stock 2008 TBSS file from the repository and was able to write to both the PCM and TCM. I was sure to swap vins and disable VATS. After completing the flash, the truck will not start (starter does not engage). Did I do something wrong? Are the two PCM's incompatible/have different pinouts despite being the same type and year? Any help would be appreciated. Both files are enclosed below (hopefully).
Malibu ripped ROM.hpt
Stock TBSS rev2.hpt