I have the xcal 2 and it's saying ECM erase failed then that it times out????? My car won't start what can I do??? I have my battery in plugged now

 

can you provide more details....like was the car tuned before or is this the first time you tried to tune it. Were you trying to put the stock tune back in? if it was not the stock tune what tune was it? So far all we know is that the SCT failed during loading a tune and your car wont start.

 

Do your gauges and dash lights work? If not, then you blew the fuse in the passenger side kick panel which connects to the OBD port. Check the owner's manual and you will be able to find the fuse (can't remember right now).

Do you have any other electrical upgrades to your car? My Sirius receiver is wired direct to the dash and if I have it on when I plug in my SCT it blows that fuse every time. If it is turned off, then I can change tunes and work with my SCT no problem.