'97 Chevy Cavalier Z24 w/2.4 engine transmission problems

I have a '97 Chevy Cavalier Z24 w/2.4 engine. When I shift into gear it
kills the motor. When I unplug the tork converter, it will run but not
change gears. All cylanoids have been replaced. I jack up the car and plug
up the converter and shift into gear, the front wheels will turn but will
not shift.

Could you help me with what is wrong?

Thanks...