2015 Coachmen Sports Coach with a cummings 450 ISL. Driving to Florida amber eng light came on and the DPF light came on. I could feel a loss of torque when going up hill but otherwise it was running good. I ran into bad weather for a good part of the trip and my average speed was 45. After I came into Florida I hit highway speeds and the DPF light went out but the eng light stayed on. Not long after the light went out I was at my destination. I used a code reader and it gave me the code SPN1569 FMI 31 or cummings code 3714 Eng protection derate condition exists. I can clear the code but it comes back as soon as I start the eng again. What I am told is that this is a general code and there should be another code that caused this. 2 different code readers and they both show this code only. Any help on resolving this would be much appreciated also is it possible it could clear once I start driving again and get the RPM up because I did not travel far after the DPF light went out?
Thanks
John
Thanks
John
