Transmission issues engine revs slightly when shifting into drive?

I was having transmission issues, this is at idle. I have reverse, but in drive or all forward gears disengage and engine revs slightly when shifting to drive also my speedo moves up to 50 mph when I give it gas. Then I got a p0172 code.
so, I replaced all 3 o2 sensors with Walker brand. Had to replace the exhaust after cat to rear of car. I also replaced all 6 shift solenoids with a new aftermarket brand. Also, both valve bodies were rebuilt. Also replaced both speed sensors aftermarket brand and new neutral safety/range sensor. New fluid and filter.
i disconnected both battery cables before work was done.
when finished I drove it for 3 drive cycles then all of a sudden it reverted back to same symptoms as before work done. I checked everything out then did the battery cable thing, then drove it again for 2 drive cycles and it reverted back again. But when I did drive it it drove great. Strong. Great shifts up and down. Like normal except for a little hard shifts and such as per relearn.
so today I reset PCM by battery cable way and now I still have reverse but drive disengages again.
i have an Ancel fd500 scan tool with ford system scan and came up with 201 systems scanned. It also scans transmission systems.
i have those live data results if needed.
What could be the issue here?

Oh. I also bought a remanufactured ECU/PCM programmed to my VIN with the latest update.