Agile Automotive Performance - Tuning, Fabrication, and Parts has never heard of this one either. Talked with him for a few minutes and went over the details yesterday. His best suggestion was check electrical / ground connections, and be sure the ECU itself is in good physical shape with no debris or the like in and around it. He is always super helpful over the phone, spending as much time as needed to assess the situation.
I'll check all of that in the next two days (I'm off for the next 4). :/