Please tell me how you adjust your tps sensor. Because from my basic understanding of electronic components, that is just a potentiometer, which senses voltage, so yes, If you have a piggy back ecu of some kind (like hondata) you could change the voltage on it. But this won't really mess up your idle, it will just cause matrix to be very fucked up.
Also you are clearly retarded if your going to tell me that your idle is fluctuating from 3 to 7k on it's own. If you have such a bad attitude towards forums, maybe you should click the fucking x and close the window.