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Automatic Regen too often

22PearlRamMegaHD said:
Having a thought on the programming and how it interacts with things such as air temperature and density. I wonder if the tuning for air/fuel ratio and ambient temp is closer to being correct in the winter given it can somehow passive regen more easily despite it being contrary to what you might think given the lower temps. Then the warm weather returns, and I wonder if the stock tune doesn't adequately reduce the fuel given the less dense air causing it to run rich.

Anyways, I'm sure someone else has pondered this already
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Diesels don’t run at a specific, or set, air:fuel ratio like gas engines do. There isn’t anything that monitors for it nor does the engine adjust for it directly.
 
Not to try to post anything political, but I thought I would pass along some information. President Trump has or is going to sign an Executive Order reducing EPA Regulations on tailpipe emissions requirements to aid the automakers in reducing costs of manufacturing. Maybe it will help us.
 
Something I've noticed that may or may not shed light on things - so I've switched to 6k mile oil changes after my dpf failure last May. Something I've noticed is that my DPF soot level gets higher, more quickly the closer I get to 6k miles on the oil. I am left wondering of the EGR and extended oil changes are causing downstream consequences. Essentially the oil gets dirty quickly with exhaust being circulated, which trickles down to the DPF.

On a separate note - I also use Archoil 6400d every 3k miles now (started 14k miles ago). Saw no difference whatsoever with the 6400. 41k miles on the truck now.
 
mbarber84 said:
Same.

EGT build up and flow through the system during long grade pulls or merging into the highway and building speed will do the same for me. The effect is substantially more noticeable when the engine is in the 130-150°F zone and is “cold” while also sucking in very cold dry air during the winter months.
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I’ve been monitoring different PIDs on my SG trying to see what changes, if any, in the tuning from going from cold to operating temperature. I’ve noticed that with a cold engine EGR is disabled and injection timing is changed. Cold it runs at a -4 to-5 degrees. Mid warm up it goes to 0 degrees and at operating temps it goes to +4 to +5 degrees. I need to rearrange my gauges so I can see at what temperature this change occurs. I think the lag in warming up in colder temperatures is delaying the injection timing long enough to get the DPF heated up faster.
I also need to watch the DPF Status gauge and see what difference there is when it shows 11 - build and maintain heat. In cold weather, it will intermittently go from showing 1 - normal to 11 - build and maintain heat if the DPF cools too much or too quickly.
Just some observations I’ve seen and I think it points to the tuning not being what it could or needs to be. Or it could possibly be a defective component in the ECM causing this. My truck is doing perfectly regen wise at the moment. I’m 15 hours and 517 miles since the last regen and the DPF gauge in the EVIC has not moved from zero with my normal driving regiment, some highway, in town, stop and go etc.
You would think that someone could data log some of these problematic trucks against some with no issues and find out what the issue is. IDK

My truck uses more DEF in cold weather than it does hot weather.
 
22PearlRamMegaHD said:
Something I've noticed that may or may not shed light on things - so I've switched to 6k mile oil changes after my dpf failure last May. Something I've noticed is that my DPF soot level gets higher, more quickly the closer I get to 6k miles on the oil. I am left wondering of the EGR and extended oil changes are causing downstream consequences. Essentially the oil gets dirty quickly with exhaust being circulated, which trickles down to the DPF.

On a separate note - I also use Archoil 6400d every 3k miles now (started 14k miles ago). Saw no difference whatsoever with the 6400. 41k miles on the truck now.
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Your results are the exact opposite of what I have noticed.

I have not ever noticed a difference based on oil age, it’s all driving/duty cycle.

6400d has provided very rapid and noticeable results. The caveat being if the driving/duty cycle was conducive to 24 hour regens then there won’t be anything quantifiable since you can’t go longer than 24 hours.
 
Had my first non 24 hour regen since getting the truck back with a new dpf back in August. It was at 20 hours (or 19 because the prior regen rolled an hour over during the regen). 819 miles. So I'm not sure I can complain, but after what I went thru for months on end last time - I hope this isn't the beginning of another dpf failure. If so, it's diet time...

95% of the above miles are at interstate speeds of 70+ so I know it's not a short trip problem. Hopefully it was just dirty fuel or something similar like driving to Kansas and back to Oklahoma (perhaps their winter blend at Centex has more anti gel, etc?)
 
22PearlRamMegaHD said:
Had my first non 24 hour regen since getting the truck back with a new dpf back in August. It was at 20 hours (or 19 because the prior regen rolled an hour over during the regen). 819 miles. So I'm not sure I can complain, but after what I went thru for months on end last time - I hope this isn't the beginning of another dpf failure. If so, it's diet time...

95% of the above miles are at interstate speeds of 70+ so I know it's not a short trip problem. Hopefully it was just dirty fuel or something similar like driving to Kansas and back to Oklahoma (perhaps their winter blend at Centex has more anti gel, etc?)
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The 24 hour clock starts at the completion of the previous active regen.

How long did it take before the dash DPF gauge started to register soot?
 
AH64ID said:
The 24 hour clock starts at the completion of the previous active regen.

How long did it take before the dash DPF gauge started to register soot?
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At around 12-13 hours it started registering, but jumped around a LOT. It would go to an 8th then go to zero then an 8th to a quarter back down to an 8th then a quarter and up to where it would normally be close to regen at almost half then drop down incrementally to 0 after an hour or 2 of driving but upon the very next start immediately show an 8th again. The day it regened (yesterday) started at an 8th but within 25 miles on I-35 went into active regen as the gauge jumped again and again. It has been close to 60 degrees around where I've been for the last week or so. Not hot or cold outside. No other changes - same driving habits, no new filters, etc. Also, if it matters, I dont warm my truck or anything. Just go out and start it.
 
22PearlRamMegaHD said:
At around 12-13 hours it started registering, but jumped around a LOT. It would go to an 8th then go to zero then an 8th to a quarter back down to an 8th then a quarter and up to where it would normally be close to regen at almost half then drop down incrementally to 0 after an hour or 2 of driving but upon the very next start immediately show an 8th again. The day it regened (yesterday) started at an 8th but within 25 miles on I-35 went into active regen as the gauge jumped again and again. It has been close to 60 degrees around where I've been for the last week or so. Not hot or cold outside. No other changes - same driving habits, no new filters, etc. Also, if it matters, I dont warm my truck or anything. Just go out and start it.
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Thats similar to how mine registers when my driving is not conducive to passive regen. I can sometimes reduce the PID, not always the dash, with a few higher rpm accelerations once everything is hot. The easier I drive the more the gauges bounce and faster it gets into active regen.
 
AH64ID said:
Thats similar to how mine registers when my driving is not conducive to passive regen. I can sometimes reduce the PID, not always the dash, with a few higher rpm accelerations once everything is hot. The easier I drive the more the gauges bounce and faster it gets into active regen.
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I ran mine up to the defuel point (104 mph) a couple of times after it was good and hot and the dp registered .02 when I got off the interstate.
After DPF EGT went to over 700*F.
 
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k72nova said:
I know this has been beat to death but I can’t find a good answer to this other than “drive it harder”. I have a 2022 Ram 2500 with a Cummins (not high output) at roughly 8500 miles I got the regen too often code and my mileage dropped from roughly 17 average to 14, took it to the dealer and they said I need to drive it harder. At this point my towing miles were at 2,000 miles so I’m towing 9k lbs 25% of the time. I know that’s not a lot.

At 9,00 miles (500 miles later) my mpg is down to 12.6 and I get another regents too often code. Back to the dealer and they tell me ”you need to drive it harder” they do the manual regen and send me on my way.

Now I start tracking my auto regen from the dpf screen, I leave the dealer still in auto regen, put 363 miles on the truck at highway speeds up and down canyons, auto regen finally shuts off…. For 22 miles, truck goes back into auto regen, I have 263 miles since then and the truck is still in auto regen. That 263 miles is me flooring it from every stop light and averaging roughly 90mph on the Highway, hitting 102 at times which apparently is the top speed for the truck. Around 150 miles into this regen I hooked a 4k lbs trailer to the truck and started just driving around with that trailer connected to try and get it out of regen. Mileage is still at 12.8ish.

Called the dealer last night and they said all they can do is put it in manual regen in the parking lot. They tell me they have one other person with this problem and that it’s my driving habits. At this point I’m calling BS, I have about 20 diesel trucks in my parking lot at work, most these guys live within 20 miles of this place and pretty much all of them still have brand new hitches on their trucks, all of them that I talk to either tow smaller trailers than I do, or less often or not at all. I’m having a hard time believing it’s my driving habits when 25% of my miles are towing and only one other customer has this problem. Has anyone else found a fix for this? Thanks!
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I am having the same problem with my 2022. Has there been any resolution over the past couple of years?
 
Mark Elkhill said:
I am having the same problem with my 2022. Has there been any resolution over the past couple of years?
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There are a lot of resolutions and "Known" fixes, but it seem there are multiple reasons it could be caused. Since there are multiple reasons to cause it there is not a 1 fix for all trucks.

I am sure people will add to this.

Air filter.
Map sensor.
Tmap sensor.
Pcv filter.
Ccv filter.
DOC breaking lose.
DPF median deteriorating .
Fuel pump leaks.
Injectors leaking.
Bad programing.
Bad fuel or to high bio fuel content.
Truck not adjusting to ambient temp.
 
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OLEJOE said:
Be sure to keep an eye on your oil for fuel dilution.
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100% I think this determines what issue might be causing it. No fuel dilution frequent regen isn't fuel related. Fuel dilution frequent regen it's fuel system related.

I've seen this in both my 22s, my personal truck massive amount of dilution and my work truck minimal and no problem.

The performed the same work on both trucks starting with the basic map sensors and air filter, then went to replace the DPF. Work truck seems to stabilize and be fixed but won't know for awhile. My personal truck well we all know that thing lol.
 
Dinky503 said:
100% I think this determines what issue might be causing it. No fuel dilution frequent regen isn't fuel related. Fuel dilution frequent regen it's fuel system related.

I've seen this in both my 22s, my personal truck massive amount of dilution and my work truck minimal and no problem.

The performed the same work on both trucks starting with the basic map sensors and air filter, then went to replace the DPF. Work truck seems to stabilize and be fixed but won't know for awhile. My personal truck well we all know that thing lol.
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I don’t know how you can even think LOL on your truck. I’m @ 19,5xx miles on my truck and it started out regening fairly often up until 6278 miles. That was when I changed out the original air filter. I’ve had a few short regen cycles since but nothing like it started out with.
 
Mark Elkhill said:
I am having the same problem with my 2022. Has there been any resolution over the past couple of years?
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Was the build month August 2022 or later? Should say on the drivers side door sticker

Mine was, and there seems to be 2 (possible) culprits. They replaced my DPF and MAP 13k ago. Mainly they think the DPFs for later 2022 builds were defective. However, I'm not sold yet on if this is a fix yet or not. Personally, I think it's a coding/programming issue.
 
OLEJOE said:
I don’t know how you can even think LOL on your truck. I’m @ 19,5xx miles on my truck and it started out regening fairly often up until 6278 miles. That was when I changed out the original air filter. I’ve had a few short regen cycles since but nothing like it started out with.
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yeah i am over it plan to fix it myself. Torque converter goes in next week then ill be on my own.
 
Finally threw the Regen code when I could get it to the dealer. Ram told them to clear the code and see if it comes back. I had the code on for two weeks thru 2 regens. They clear it and drive 300 miles... no code...
no code no issue. I get to go pick it up tomorrow.

What a waste of time
 
andy685 said:
Finally threw the Regen code when I could get it to the dealer. Ram told them to clear the code and see if it comes back. I had the code on for two weeks thru 2 regens. They clear it and drive 300 miles... no code...
no code no issue. I get to go pick it up tomorrow.

What a waste of time
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Stellantis is broke, and they hate their American brands (see TKs garage). Unfortunately for the next year or 2, I bet it's nearly impossible to get much done. Diet diet diet
 
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