Originally Posted by
Yooper
I did a delete and tune, last week all went well with the process, shifting was not right. Was sent a new tune last night to try. While flashing it stopped progress I called my tuner, and showed the progress. After waiting a while he told me to unplug and start over. He sent a recovery file. Now I get a code $0549 turn on ignition. He told me I had to send out my ecm.
A friend of mine did the same thing and the dealer hooked to it and said the vin was missing, they fixed it and installed the tunes in like 20 minutes. His was a 14 mine is an 18. I read somewhere that they changed the security stuff in 17. Any help would be great