check engine light

Got in my car after work today and check engine light was on, pull the codes on a scanner and i got these 7 codes. ( check engine light was not on this morning)
PO403
PO443
PO446
PO135
PO141
PO155
PO161

4 of them i think are saying my O2 sensor are malfunctioning. I have mac prochamber (catless), but i did install those m.i.l. elminator plugs. could those be the problem. car seems to be running ok.

Thanks for the help

the car is also not idleing well. rpms are bouncing from 400-900 at idle

well i did some searching and found that i had a blown fuse. Although i think tha the fuse most likely blew from the MIL's not working correctly, i put a new fuse in and reset the computer and she is running great again. i did go through and pull apart all the connectoins for the o2's and make sure they are all clean and not up against anything they shouldn't be. But it is all good now.

Should i go ahead and replace the MIL's or just wait and see if it happens again ?