slipping problems

what would make my trans. slip in every gear? i know it's electrical so that might narrow some things down. i think it has s-thin to do with the shift solenoid. i took the ecm out and i get power in reverse, d4,d3,2 but not 1( on one wire) and i get the power down at the solenoid. i changed out solenoids from my old trans but it didn't change. (but my other trans did the same thing right b4 it burned up) the problem started after i put the transmission back in the car. i had taken it out to have the seals redone but i guess i forgot to unplug the shift solenoid and torque converter solenoid. so i know it has s-thin to do with it, the wires pulled out of the plug on the top ( wires comin from engine harness). where should i go from here? a shift solenoid is really expensive to me 300 at advance but they can't order it so i'll have to go to honda (trying not to do that unless i have too). any help would be greatly appreciated.
1996 accord lx f22b2 4-cylinder automatic aoya trans 
ok i just learned how to pull codes and i got them. on the check engine light i got 65, and the d4 i got 15. can anybody tell me what that means. i think the  engine light is just my o2 sensor but i don't know if the d4 uses the same chart or not. i got a Ignition Output Signal missing or defective ignition output signal for 15 but again i don't know if that is the right reason for that code

The 65 is your 02 sensor. I dont see anything in my Haynes for a code 15. It maybe something you can only diagnose through honda's scanners.

Yeah I dont know what a 15 is either.
Hopefully one of the Honda Techs on here will see this thread and comment.  Or maybe someone that has a Helm manual will look it up.  BTW, if you check the DIY section, there are downloads for a Helm manual online for free.  but I'm not sure if it is for a 96 or not.