92minime

I recently did a d16z6 head on my d15b7. I put in a new water pump, timing belt, all new gaskets, and best of all ecu(this thing is unbelievable) I noticed it has a weird idling problem though. It will go from 1500rpm-about 800rpm and back and forth. Also, In the throttle body....there is a small hole in the wall of it....it looks as if it goes to the tps. From this hole there is a high pitched whistle. Can anyone give me a hand with this...Thanks in advance