Just installed a Sacer TPS

[pnilz]

and now my car works like crap, Will dismount it today after work but what should i look after? obviously so everything has contact but it should have. It throws code P0121 as soon as i turn ignition on and goes directly into limp home If i start it. If i push The throttle The rpm goes up to like 1200 so maybe im not totally fucked.