tps

I recently replaced the TPS on my 2001 Grand Prix. At first it all seemed good, but now I'm having some major idle issues. From a cold engine it idles high and keeps rising. When I put it in park it revved high and wouldn't come down until I turned the key off. When I restarted it idled...

So I cleaned everything with throttle body cleaner and put it all back together, I also replaced the gasket and now it will start but cut off half a second after.