Land Rover Repair: 96 Disco I 113,000, TPS?, alldata, desperate need

Question
After reading up on the subject for days on end, I've come to conclusion the TPS on my Disco is in desperate need of replacement(very high revs when at start up; over 2000, sputtering on the highway, won't idle much below 2000 rpm after coming to a stop). I'm hoping this is something I'm able to do on my own without mush hassle. I've been able to complete a few simple repairs and swap outs in the past referencing my Workshop Manual: Owners Edition, but I'm not able to find anything on the TPS; pictures, diagrams, reference, nothing. I was hoping you could lend me some guidance on how to go about this swap, or at least point me in the right direction.
Thanks,
Trevor

Answer
The best place for detailed diagrams and repair instructions is Alldata or Mitchell.  You can buy all of the repair diagrams and inforamtion for you car at a very low price (I think it's about $12).

I would say, however, that TPS problems on this care are very rare.  It sounds to me like you have an Engine ECU problem.

Good luck!