Code PO122

Welcome back. If the light isn't on but it does work during the bulb test then it is possible it is either a history code or possibly a pending code. I would disconnect the battery for a few minutes to erase anything in the system. Then run it a bit and see if the code comes back. If you have a chain store that scans for codes you may want to have them scan it as well, just to verify if it's a real code or a ghost.
If it does come back the likely hood is that the TPS wiring or the sensor itself has a fault. Not uncommon on that engine.