Re: No power to ecm
If you didn't have any power to your computer, your engine will not run at all. Sounds like the data link wiring is either not making a connection with the scanner, or something to that extent. It is possible for a computer to go bad, however it is not common. You are likely going to have to wait for that tech to get off of vacation to look at it, the problems you are describing may get pretty involved.
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