Sent one of these out to a customer and he downloaded the file and sent it to me. I modified the tune and sent it back. He tried to load and got the $06FF error and now the car will not start.
Any ideas? I have been over his setup with him over the phone and everythings seems correct.
Do I need to send the file in to EFI Live to have it look at?
Any help would be great.
Thanks