Unless you are comfortable taking apart the TPS and soldering a new battery in then you might be better off if buying a new sensor. There was a "how to" on the other forum and I can't find the thread that showed the process. I think that Murph is also doing a TPS exchange where you send in your dead one and he sends you another back. It might also be that he puts in a new battery and sends you your orignal one back. Not sure, once again this was all on the old forum and I haven't had good luck searching through the pre-crash threads.