Throttle Position Sensor Issues

[Bwwaaaa]

Continuation of this thread and problems:
http://318ti.org/forum/showthread.php?t=42626

So after no luck in tracking down my OBD2 problems, I broke down and bought a 16 pin diagnostic port reader.

It tells me that my Throttle Position Sensor is bad. I bought a new one, slap it in, clear the codes and it goes straight back to bucking around. It throws another CEL, I read it and it's the TPS again.

Is there anything else that could be causing it to throw a TPS code?

Is there anything else I should be looking at?

It's not throwing any other codes other than battery disconnect, but that's just because I'm starting it off a jumper pack at the moment. Really at a loss as what to do at this point.

Any suggestions would be great. Thanks in advance.