Fuel Pressure @2000 PSI After Engine SWAP?? (Chevy "Craptiva" GDI P0089)

Here we go again...another modern GM GDI engine that is NOT having a good day. Supposedly the car drove "fine" for a few days after an engine replacement, but now it's definitely NOT HAPPY! Only codes set are "P0089-Fuel Rail Pressure too HIGH"...interesting. Lots of variables with an engine swap...This one might need a few more parts! IVAN'S PICO WAVEFORMS: https://drive.google.com/drive/folder... THINKTOOL PROS: https://www.amazon.com/dp/B08XXWHQVJ?... Enjoy! Ivan