TPS sensor on Frontier

I had a trouble code for the TPS. I got a new one, put it on, adjusted it with a volt meter to the proper specs between .3-.7 volts(closer to .3) and I still have an engine check light and it still seems to idle high. At roughly 1000-1500RPM. Where as it used to idle at about 500RPM. Any ideas?

ThanksMAT

everyone just as stumped as I am? I'm about to break down and head to the dealer.