DD13 SPN 3251fmi 21

[Therealarw]

Hi there guys..

I'm having this issue with one of my freightliners with a DD13 giving me a "DOC pressure not plausible" I've checked all the tubes for the inlet and the outlet. I checked to see if the there was voltage going to each sensor and I got 5 volts going into one pin and 2 grounds(if I unplug from each sensor) I've also run a DOC face cleaning for like 3 hours and the code still came on... I'm just not sure if it got the full cleaning... But this thing has been a pain in my a**, if I'm missing anything please let me know! Thanks