OKay here are some codes that occur sporatically -

U0073 - Total non-communication with CAN serial data circuit

U0101 - Lost communication with TCM

U0106 - Lost communication with glow plug control module

I can reset them, go for a few days without them and then some of them would happen again. I've had no performance issues at all. Engine runs fine. Just last week I hooked up a newly purchased Banks 6 Gun and still same messages.
What should I do ? What is wrong ? What will happen ?
Thx for all your replies.
Scott