I have a 2019 Ram with a 6.7. In January of this year CP4 went out, 1-month at the dealer before they replaced the entire fuel system and put in a cp3. Since this work the truck is performing a regen every 50-100 miles. I can hear the difference in the motor when it regens and the DPF monitor...
I own a 16 ram 6.7 just did the egr delete and dpf i put a 5 inch turbo back and i have the smartys touch tuner. i got the tuner to register to the vin and downloaded it to the ecm but for some reason my truck is still saying service dpf see dealer and that it is about to go in to limp mode how...
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