Well, my cousin who works for GM brought the tech II home again and ran some tests, its looking like the EBCM, Im hoping I can find one at a scrap yard or something. What year would have to come from, the car is an 01. Could I get one from a 3.4 impala?

 

as far as your po030 code i would check your fuses there is a fuse for the o2 heater circuit, and the bcm im not to sure about.