'02 955 Daytona Ce

I have,I believe now got a faulty TPS.
Tuneece came up with error P0122,readings on a multi-meter showed very lumpy results when opening the throttle.
The plan is,once again to take parts off my donor bike...just swap the whole throttle body assembly and see how I get on.The other bike is identical,as is the ECU.
I know I'm only dreaming/fantasising that it will be as simple as that.but I would be foolish not to first seek advice first.
As said,I do have Tuneecu,cable and tablet but am crapping myself,way out of depth if anything serious needs doing with this.
If anyone can guide me..I would be very grateful.
cheers.

 

Thanks for the reply Freck.
got the swap done and found she would start but not run without playing with the throttle,cut out within 5 seconds or so if left untouched.
was still showing error p0122..so just trying my luck...I cleared the error code..reset the TPS and touchwood,all is just about there I 'think'.
went for a 5 mile jaunt round local and must be honest she is much better,quite lively.
TPS voltage is showing at .569,.throttle at 0.0%.
Is that near enough or is there still something to be done.
It does feel like I can trust her like this..she had a amind of her own before.
cheers.