I have a 21 2500 Tradesman with a Cummins,It set a P299E-00 engine code for a NOX sensor. Of course ram doesn't have the parts to fix it. They have no idea when the parts will be available . Does any body know if its ok to drive this truck without causing more problems or the dreaded limp mode. Ram is doing a good job of making me never want to buy their trucks again. Thank You