Nox sensor abnormal update rate./speed sensor

[DT_Duh_Trucker]

(05-25-2021 )DVT873 Wrote:  Cummins has an emissions recall running on NH3 sensors and SCRs. C2119. On ISB 2350's for sure. The NH3 sensor is deleted and the SCR is replaced. I do not know if this applies to the ISX's. Quick Serve should tell you. Have had 3 customers have this done. There is some testing BS they had to pay for. Around $800 but the trucks came back with new SCR's and no NH3 sensors. As I recall. Poke ESN 73667326 for a 2350 ISB in and see what it says.

Something weird about QuickServe. The ESN above has had this done but it shows open in QS. Now when I see one I email Cummins to find out if it has been done or not. This might only be for the light and medium engines. Rawze will know the details.

I'll definitely check into this and as rawze said the software updates as well.