Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Potential causes for this condition are excessive ash in the system from the engine not getting a high-enough temperature to effectuate self-cleaning; a stuck-open EGR valve; faulty exhaust temperature sensors.
To repair this issue, first inspect the system for accumulated ash or debris - make sure EGR is not suck open. Clean and service as required. Next, connect a capable scan tool and monitor exhaust temperature sensors; temps should be within 6 degrees Celsius of one another. If not, replace the sensor that's out of context.