Has anyone gone the route of having the O2 sensors replaced completely to correct the CEL? Did you have warrenty issues? And did it fix the problem?
Trying to put all of this together and it seems our solutions are to have a new tune that blocks or prevents the code, an SCT update, or possibly the front O2's replaced.
o2 sensors are very expensive and that would be my last choice of action(paying for them personally, at least).
We have a few guinea pigs out there trying out our most recent(hopefully, finalized resolution) tunes for this issue right now and as of today have not had any CELs popping back up. I think with the resolution we have put in place and the SCT update, this should be a thing of the past. If it isn't, we will go back to the drawing-board and get it figured out.
The issue is that this is happening to every tuner(the ones that actually keep the CEL-code active at least) and so there is no real way of knowing if it's a difference in tunes/parts or just the factory o2 sensors being overly sensitive/active. We have to remember that this code is being tripped by an AFR imbalance between each bank of cylinders and that difference is less than .1 points. If it were something major, like a full point, then yes, it would be alarming, but in all honesty, that's not that bad. Nothing that would keep me from driving the car or worry me while driving it at least. It's an annoyance, yes, that is why we are working to correct it, but is it a disaster? No.
At this point, all we can do is wait and see if those testing our solution to the problem have the code pop back up.
If you are a poster who has experienced this and got an updated tune from us, please check in and let us know and give us an update on your current mileage without a CEL. This way we can keep track of tunes/dates/CELs. So, please reply with:
most recent tune update:
Mileage since last CEL:
This should be a good format to start with.