Dcarter88

I have an 06 525xi and I just replaced my pcv valve and hoses. My codes have cleared and my car is running smooth, but now it is throwing codes for all 4 o2 heaters. The o2 heaters share the same circuit as the pcv heater. Something in my pcv system is shorting out and blowing this fuse, but I do not know how to find the culprit. Does anyone know the order that the plugs from the pcv plug into the heater bracket at the back of the intake manifold? (n52 with metal valve cover, external pcv valve right under the intake manifold) Does the order matter? Would this cause the fuse to blow? I have been all over the internet and can not find the order in which they go, or if it even matters.