regen

[skorski]

has anyone figured out why all of a sudden my 2020 3500 is startin to regen every 350 miles new oil and mopar ail cleaner from dealer by vin number ???

 

[NIsaacs]

has anyone figured out why all of a sudden my 2020 3500 is startin to regen every 350 miles new oil and mopar ail cleaner from dealer by vin number ???

Some info here:

https://www.turbodieselregister.com/threads/engine-code-p2459-regen-frequency-to-often.273139/

 

[AH64ID]

has anyone figured out why all of a sudden my 2020 3500 is startin to regen every 350 miles new oil and mopar ail cleaner from dealer by vin number ???

Which air filter did they give you?

The white 68517554AA or the orange/yellow 53034051AB?

There is confusion on which one to use at many dealerships, but only the 53034051AB is supposed to be used and the 68517554AA is causing regen issues.

 

[skorski]

just checked it is the 4051AB

 

[AH64ID]

How many hours is 350 miles?

Did you look at the paperwork or the filter?

 

[Diesel85]

Look at the filter. It has the MOPAR part number printed on the filter.

I just ran into another person that had this same exact issue.

 

[Timd32]

I track mine, its '22, not much I can do about it.

I did drive it 4 hours two weekends ago and its fine running down the road, as soon as I got off the highway, not less then 4 miles down a smaller road the DPF kicked up a few percent.

 

[bcbender]

Tim, How are you tracking it? Alpha-obd? I have never had the DPF gauge move and almost never see a regen (at least that I know about). I am at 29600ish miles preparing to do my annual and AISIN service, will do a air flitter then as well.

 

[AH64ID]

I track mine with the CTS3 and dash DPF gauge, and I can also hear the difference in how the engine runs unless I’m cruising on the highway.

Lack of gauge movement is a good thing, that means you drive the truck in a manner that passive regen is effective. The truck will still do the 24 hour regens thou.

 

[Timd32]

Tim, How are you tracking it? Alpha-obd? I have never had the DPF gauge move and almost never see a regen (at least that I know about). I am at 29600ish miles preparing to do my annual and AISIN service, will do a air flitter then as well.

Manually in Excel, but mainly photos then I catch up every so often on the sheet, at 40% DPF it will do a regen in a few miles. So I just see it pop up snap a pic of the miles and hours.

I'm not overly worried about it right now, it's doing it's thing, I doubt it's good for the truck overall. Unlike the 2020's, maybe that other Y43 sensor will help? I don't think it will make a big change in the sequence. I almost think they are going to dump a similar program in it equal to the 2020, but that's all WAG.

Truck needs to work not just drive unloaded. The only really odd thing is as soon as it's done working it's immediately back to the super fast regen mode. So while it stays low DPF while working it's kinda short lived.

I almost wondered if they knew a trailer was hooked to it and it ran a different map for sequence. Besides the load, because some of my Trailers are kind of smaller.

 

[bcbender]

Makes sense I suppose...I've only once or twice seen anything beyond zero on the DPF gauge, and even then its about 15%. then gone. I do a lot of towing hence my 13.5 mpg average (LOL). and now that I have a company car, I don't even drive it to work much anymore.. I only put about 5k miles on it this year. Does you "regen in process" pop up? I've only seen that screen a couple times, and had to be on the DPF screen to see it... I occasionally look for the instant FE not going to 99mpg when throttle off (as John has said) to be an indicator that it is in regen....but most the time I am just ignorantly driving it with a huge smile.....

 

[Timd32]

Makes sense I suppose...I've only once or twice seen anything beyond zero on the DPF gauge, and even then its about 15%. then gone. I do a lot of towing hence my 13.5 mpg average (LOL). and now that I have a company car, I don't even drive it to work much anymore.. I only put about 5k miles on it this year. Does you "regen in process" pop up? I've only seen that screen a couple times, and had to be on the DPF screen to see it... I occasionally look for the instant FE not going to 99mpg when throttle off (as John has said) to be an indicator that it is in regen....but most the time I am just ignorantly driving it with a huge smile.....

Only if you navigate to the DPF screen.

Yeah I have lots of other vehicles, still have my '18 2500 gasser, a '22 1500, if it's a major issue daily driving it, will make some room in the garage for it and can only use it for towing.

Taking it and the 24' deckover from NJ to MI this week, it's so much nicer then the gasser screaming up the PA hills. So she will get a decent workout. Not hauling much and will empty on the way back. But it's heavy enough empty.

 

[AH64ID]

The regen in progress message replaces the DPF gauge. There isn't a popup for a normal active regen.

 

[Turbo Terry]

I have never got a regen message or a dpf reading on the dash display.I seem to be using def at a normal rate. I did get my in the mail y43 notice. Truck runs well shifts well . This is all very interesting to me. Some owners are having issues with the emission systems on their trucks others not. My tail pipe is a little black not snowy white. Almost 19 k now. I guess we are all learning about the emission systems together

 

[skorski]

orange and yellow and all numbers match up

 

[Pizzamaker991]

has anyone figured out why all of a sudden my 2020 3500 is startin to regen every 350 miles new oil and mopar ail cleaner from dealer by vin number ???

Out of curiosity how many miles / hours are on your truck? Mine started to regen every 200ish miles like someome flipped a switch once I got to about 28k.

 

[skorski]

46K I wonder if the def fluid is starting to break down The last time I filled up was in April and I still have a half a tank ??? just like flipping a switch at 45K don't make sense

 

[AH64ID]

46K I wonder if the def fluid is starting to break down The last time I filled up was in April and I still have a half a tank ??? just like flipping a switch at 45K don't make sense

DEF has nothing to do with the DPF or regen.

 

[Turbo Terry]

So using or not using def is of no value of for the dpf reading or regens I wish there was something in simple terms that I could read that would explain how the emissions systems worked on these trucks

 

[Jay P]

It's not that complicated.
The DOC helps burn unburned hydrocarbons. Same as the catalytic converter on a gas engine.
The DPF is just a filter that removes soot from the exhaust. Dumping raw fuel into the exhaust causes the temp to rise to about 1100 deg to burn off the soot (active regen).
The SCR uses DEF (urea) to set off a chemical reaction to convert nitrogen oxides into nitrogen, water, and tiny amounts of carbon dioxide. It has the same effect as EGR. EGR works by introducing small amounts of exhaust gases into the combustion chamber to lower combustion temps and prevent nitrogen oxides from forming.