[Aerkuld]

I replied to your other post in off-topic but I might as well copy it here.
I second the DME relay. Even if you get one and it isn't that I assure you that you will want one to carry around in the glovebox. The DME realy has this habit of quitting at the most inappropriate time and it's so convenient if you can just swap it out.
That said it could well be something entirely different but most intermittent or sudden failures like that seem to be DME relays.