whenever this surge happens the car never dies completely, I take my foot off the gas and it cuts in and out for mabye 2 -3 secs, check engine light flashes on and off like mad. and sometimes even resets the computer whenever it happens. my scanmaster readings will flip out and give me a bunch of different error codes and then go back to 00 once its done having an aneurysm lol what is happening?!?!?!
I would follow the orange wire at the battery that provides power to the ECM. I had one end up melted on the passenger header and it would randomly blow the fuse. Maybe you have a bad connection somewhere in the ECM power orange wire that starts at the battery cable.