Got the cobb accessport and loaded the maps on my computer then went to go install it on the car so i plugged everything in and went to go turn the ignition ON and the screen stayed black...tried several times but never worked...they might have sent me the evo x one..does it make a difference? Does anyone know what the problem might be?

 

You should contact COBB and ask them for help.

 

yeah ur best bet is to contact cobb and ask the what is going on

 

Are you sure you've plugged in the cables correctly?
Check that. If it still doesn't start up, it's most likely faulty.