Owner of this clean 1999 Lexus GS400 bought it an an auction with throttle problems.
It's setting a persistent P1125-Throttle Motor Control Circuit.
He limped it from 3 hours away to my shop for a diagnosis.

Parts cannon has been fired: used throttle body, motor, and reman ECM.

Place your bets now!

IVAN'S PICOSCOPE WAVEFORMS:
https://drive.google.com/drive/folder...

THINKTOOL PROS:
https://www.amazon.com/dp/B08XXWHQVJ?...

Enjoy!
Ivan