Hi Folks, I've searched the forums and found different people with frequent regen problems, but never really found an answer to the problem. My 2016 has started doing regens every couple hundred miles. Truck is all stock, but I have a CTS2 monitor so I can tell when it is going into regen. For the first 4 years or so it was every 1000 miles. My driving habits really haven't changed. The truck only has 42000 on it, so it isn't worked hard, which I know doesn't help with the problem. There have been no codes thrown. I pulled the differential pressure sensor and everything looks clean. I have a hard time believing it's the scr since this change didn't seem to happen gradually, but was all at once. Do the differential pressure sensors go bad? Does anyone have any suggestions where else to look for the issue? The tailpipe is as clean as when it was new, if that helps any. It wouldn't be a big deal, but it's killing the fuel mileage. Much appreciated for any advice.