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