would you guys be able to give me a rundown on what the symptoms are of a bad TCM or connector board?
I had the xfire in the shop about 8 months ago for a tranny check and it came back with some kind of tranny/toque converter problem... aka I have a really bad vibration between 1100 and 1700 rpm in all gears and the car lerches when down shifting at low rpms, like stopping at a light, (this is a ltd 04) like when you shift in a manual and dont have enough gas. ps it also stalls with this problem at about idle in second if its cold.

is this something that the TCM or connector board would do?