Diggins

I have a piggy-backed p30 setup in my civic for a modified b16a. I got it tuned so it would run decently through the Greddy e-manage. I had gotten rid of all by problems but for a ECT failure that gave me a CEL. Engine ran decently once up to temp with no other problems. I did a poor job of the electric(used crimp on 3M splicers instead of soldering for the piggy-back). The engine died on my way to pick up some furniture. I mean everything just shutdown...the CEL disappeared and I had no throttle control. When I listened closely to the passenger side of the car I could hear a faint two-tone beeping...similar to an ambulances up-down sound but much fainter. Any ideas? I'm hoping that's not a sign of a fried ECU, and instead is a shorted wire or a break on my crappy splice that I didn't see.