Running into a really weird issue here.

2002 Corvette
Kenne Bell 2.8L
Siemens 83lb H/I injector set

Once the car actually turns over and runs, it runs great and will continue to run for as long as you want. You can turn the car off and restart it a million times and it will be fine. Once I go in and download another tune in the car, it will turn over and cut off immediately (Somewhat like VATS; of course this is disabled in the PCM already). Then I can go into tuners and redownload the program a ton of times, change the battery, put the battery charger on, etc. and still to no avail. Let the car sit for a few hours and boom it fires over again and will work perfectly until the next download.

I'm ready for the can of gasoline on this one guys, anyone run into a similar problem? I do have cam counts, crank counts, proper voltage, etc...