OK i just bought efi and ive posted this problem on dieselplace.com but i figured id put it on here too and see if i get any more ideas. I am trying to download my stock tune and encountering bootloader errors. I had a six gun on my truck but physically removed all remnants of it so thast shouldnt be the problem. Ive unhooked both batteries for and hour. Ive unplugged my radio fuse and onstar fuse. Ive pulled the pcm fuse for a while to try and reset it. i have absolutely no aftermarket electronics installed. i have also driven the truck for 30 minutes to charge the battery up and am reading almost 14 volts with the key on but the engine not running. all of my lights and ac are off. i turn the truck to the on position plug in the obdII plug in the usb start efi tuning tool click the blakc and green button to d/l tune. I continually get this message
ecm not secured
initializing ecm
"" step 1 of 4
setep 2 of 4
step 3 of 4
step 4 of 4
ecm lock has been rearmed attempting to unlock ecm again
initializin bootloader
error failed, controller has returned to normal operation
initialinz bootloader step 1 of 3
error
disconecting
disconected
done!
i have looked at the button to see if the ecm is locked and it tells me it isnt.
Im terribly confused.