1990 talon N/T FWD Auto Trans problem, no fwd gears only R after rebuild

[vitalthreat]

I have been pulling my hair out with this one. My auto tranny was just rebuilt and I only have reverse (which works great). When I put it into drive, it seems like it engages, but I cant go any where. I have tried to locate the TCU. There is a small box underneath my ECU, but only has a couple of magnetic switches. is this it? I also found a box that looks like a ecu type behind the driver and behind the panel. I need some help here guys, I have not had this car on the road in over a year and I am getting very frustrated. I really think it is an electrical probelm, but not sure. any help would be greatly appreciated. thanks!
P.S. b4 the rebuild it would shift really hard and only engage sometimes.

 

[GrocMax]

If it has 3rd gear only in D, sounds like you have the two 4 pin connectors for shift solenoids and A/B speed sensors hooked up bass-ackwards. Both are 4 pin connectors, one will have 3 wires, one 4. Think back to those lessons on Sesame Street for matching things up.

"One of these things, is not like the other...."

 

[vitalthreat]

Originally posted by GrocMax
If it has 3rd gear only in D, sounds like you have the two 4 pin connectors for shift solenoids and A/B speed sensors hooked up bass-ackwards. Both are 4 pin connectors, one will have 3 wires, one 4. Think back to those lessons on Sesame Street for matching things up.

"One of these things, is not like the other...."

I t seems to be in forward lock up. I am thinking it may be the selenoids, but not sure. any help would be great!