Wacky TPS readings (car not even running)

[DJ23GSX]

I was sitting in my car today listening to the radio and i happened to look at my safc and i noticed the throttle % was bouncing from 1.5% up to 3% but the car wasn't even running i had the key in the acc position to roll down the windows. I know the safc is wired right and the throttle cable is adjusted right so i am guessing that the tps is on its way out. My fuel trims seem to be maxed out for no reason either. I had them all tuned almost perfect all summer long. Could a bad tps cause crazy fuel trims?

 

[talon212]

If you have a volt meter check the resistance on the tps, also check www.vfaq.com for some reference.
Hope this helps..