PCM memory error code

Should be aftermarket support, or maybe a guy can go the megasquirt route. Awful big hassle over a piece of black tape…
I do have a current snap on scanner, will program skim and set pinion factor. If you can chat with the local snap on dealer, he may be able to direct you to a shop capable of flashing an ecm, or hunt down a used one. If anything the used one will keep you running while original one gets repaired.
Pull the old one and google the part number.