I cleaned my throttle body sunday. I took it off cleaned it and put it back together. Now my car idles way too high. It starts at about 2500 rpm idle, then it goes down to 2000, Later it may go down to 1500, but doesn't really stay there. Every now and then, in stop and go traffic it will go down to 1000 or lower on the idle and my check engine light comes on, then when it cools down a bit it kicks back up to 1500 or 2000 and the check engine light goes off. I've checked all the hoses, none of them are cracked. I tried putting clamps on the hoses thinking the fittings might be loose, but that didnt do anything. I've driven it 200+ miles already, mostly freeway though. Can anyone help me or have any ideas?