A5k3r1

I have a 96 legacy L 2.2 it has a CEL p0753 shift solenoid a. I've read thru alot of post and all I can find was mostly for shift solenoid c. My question is: is it in the transmission or wiring into it. I recently changed the water pump, timing belt/pulleys, raidator, tps, knock sensor, oil pressure switch, and a few other things and the only CEL to come back was that one. A local machinic told me to use some Lucas to the trans fluid. I tried that when I did the radiator swap and drained all the transmission fluid out. Can anyone help!!!??? Also shift lock is stuck In park I replaced the solenoid and it also had a current to it but doesn't work