2020 Ram 2500 Code p0299

[ltkelly]

So any update on this code? CEL code P0299?? I’ve read a few threads but haven’t found a definite answer. My 2020 2500 with 28k miles just threw this code. Seems to be running fine. Took it to the dealer and they updated ECM and reset transmission. Two days later code is back on again. Could it have to do with the recent recall on the CP4? Dealer said they can’t fix that because there isn’t a part yet. Getting frustrated as this is a fairly new truck. No modifications and always have used OEM filters. I’ve taken sensor out and cleaned it but it looked brand new to begin with. Any help or update would be great! Thanks guys