Mine is an 89 :-), but yes, the tranny and ECM is from an 91" G30. The wiring on autozone seems to be correct, except that I don't have a fuel heater or rear wheel anti lock break on my car.
I guess I could check the connection to my Engine Speed Sensor one more time, maybe try to disconnect my Engine Speed Sensor just to se if there is any change. Maybe I should try to borrow an ESS...
My engine speed sensor -> http://info.rockauto.com/ACDelco/Detail.html?215-97.jpg