Throttle position sensor 2 error code ?po221?

[nollafnhoj]

Had my new 306 HDi plugged in today after a few days of the engine management light being on and my local mechanic was able to tell me that it was the 'throttle position sensor 2' think i remembered the error code correctly as po221 or p0221 - could be mistaken.

Does anyone have any experience with this and could recommend anything to me before i make the costly decision to replace the sensor on a whim.

Thank you, nollafnhoj