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 "P0089Fuel 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