the dreaded throttle control error codes

[Bob_n_Cincy]

Rick, on line 2657 of your datalog the main accelerator signal goes to 0.04 volts. anything below 0.50 will put the car in limp mode.
At the same time your sup accelerator signal stay good around 1.3 volts.
This tell me the supply voltage to the pedal is good.

see this section of the chart. 650e083d.jpg

on line 2692 of your datalog the main accelerator signal goes back to up to 0.86, a normal value.
An the accelerator pedal is operating correctly. Once the car goes into limp mode it will mot recover until cycling ignition.

See this section of your dstalog 650e08f6.jpg

I suggest carefully inspecting the red wire connection between the pedal assembly and the engine eCU. If this doesn't working, try a new pedal.
Bob