Transgo TF2 on a 904 is not shifting

Im your experience what can occur if I'm using the incorrect type of TC? The car is going front reward looks like ok... the only issue is that is stuck on the first...
I'm just trying to figure out what converter you have. Others have mentioned the problems that can be encountered with the wrong converter. If you remove it, get the three numbers off the converter and from that series of numbers (typically 3) I can tell you what it was originally used for.