Originally Posted by WhiskeyHotel

I seriously doubt fields from a power line are strong enough to do anything. They fall off as the square of the distance. In addition, there's more EMF from the ignition system of the car than anything else. The ECU is shielded from this. (H3ll, the car is basically a Faraday cage anyway - the insides are surrounded by the metal body.

In any case - a very close call. I'm glad you were not injured. The fact that this particular ECU was a bit flaky leads me to believe that the "re-set" did not completely solve the problem - maybe a hardware failure? I hope things get sorted quickly for you.