[gatos]

Yes, the TPS has a little play, a few degrees either way. That is intentional, so it can be rotated slightly, until you get the desired values. They don't have to be spot on and the car ECU should eventually work out how to work.

The main problem with the GDI is that once you disconnect the battery, or replace one of the critical components that control the fuel/air ratios, the ECU takes some time to adjust. The main thing here is that you are getting an error code, which you shouldn't, since you replaced the TPS and reset the codes. So either the new TPS is not working properly, or there is a wiring issue.
As for the TPS sensor on the pedal, it could be an issue, but that would be super rare.

Anyway, keeps us posted and we will eventually get to the bottom of it