High DPF abd NOC Temps

[asptsman]

Today and once two months ago I experienced high DPF system temps on my 2007. 5. Today I was about an hour into a solo trip from Orlando to Ft. Myers and my Edge Insight showed a regen in process. The regen lasted a normal time and then went off but the temps seemed to stay up around 1000 for a time and then the regen went back on and the temps went almost to 1900 degrees. I decelarated and was getting ready to pull off when the computer threw two codes (P200c and P1451) and shut down regen. Temps went back to normal and a later regen went as normal. I am running a Smarty Jr. in the economy mode.

Does anyone have any ideas about what caused this???

 

[HBarlow]

We always require at least basic information to even think about your problem.

What model is the truck ie pickup or C&C? How many miles? How has it been serviced? What if any mods?

What do you consider a normal duration regen? What temps are you describing? EGT? What were you doing when you saw 1900*? Accelerating hard? Hauling heavy load?

 

[asptsman]

Harvey, sorry. For some reason my info did not show on the post. Truck is 2007. 5 3500, 80,000 miles no mods and has been serviced by Dodge dealer according to service schedule. I am running a Smarty jr. and was in the economy mode. The normal regen duration seems to be 10 to 15 minutes but I have never timed it. The temps were the post DOC and post DPF temps as reported on the Edge Insight. I negelected to look at the EGR at the time. I was running 70 mph with no load, just normal driving, no hard acceleration.

 

[HBarlow]

The full regen cycle normally runs up to 30 - 40 minutes in my truck and if I pull a grade during the regen cycle EGT will get quite high.

I doubt you have anything to worry about.

 

[Jim W]

Hi, per the TDR site list technical service bulletins for the DTC's, you could have a plugged DPF per P200c, also the P1451 is DPF system performance. I have attached the link to this e-mail for you, see category 11 for exhaust.

https://www.turbodieselregister.com/membersonly/tsb/09tsb.htm

Jim W.