[creeper]

I was wondering if o2's could be related since I've gotten o2 codes randomly, maybe once a year since I started screwing with exhaust and whatnot. I was told by a few people they would have no effect on the idle but I have no idea what sensors send data where and how the computer uses that data. I'll try swapping in a lower mileage set (I think I have some somewhere) and see if it makes any difference