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Automatic Regen too often

22PearlRamMegaHD said:
I know I'll probably be crucified for this but something interesting has occurred

I just got back from a 28 hour, 1760 mile round-trip vacation (Oklahoma to Wyoming and back). My truck had 2 engine hours since the last regen before leaving. The EVIC never left the DPF screen. In 30 hours I never had an active regen message. Additionally, I reviewed "dash" camera footage to verify I didn't miss it as I can view essentially 1 min increments as a 1 second screen shot type of video. So I can view an hour in 1 minute. I set up this camera that has high resolution so I can see everything in front of me - evic, vehicles out the windshield, etc after fighting ram on getting the repairs done so that I have iron clad proof of anything going forward.

Someone help me make sense of that. No regen message and I'm 6 hours past the 24 hour timed regen. I highly doubt it made a difference, but the entire 28 hour trip had a 8k pound travel trailer attached. I averaged 9.5mpg there and 11mpg back. Which I attribute mostly to going up in elevation vs down.

Anyways, I'm stumped to say the least. 3k miles ago they replaced the DPF and MAP. Not sure if there was any flash updates that changed the timed regens if EGTs are consistently high....
Click to expand...
Just to confirm:

You’re monitoring engine hours, not clock hours correct?
 
22PearlRamMegaHD said:
I know I'll probably be crucified for this but something interesting has occurred

I just got back from a 28 hour, 1760 mile round-trip vacation (Oklahoma to Wyoming and back). My truck had 2 engine hours since the last regen before leaving. The EVIC never left the DPF screen. In 30 hours I never had an active regen message. Additionally, I reviewed "dash" camera footage to verify I didn't miss it as I can view essentially 1 min increments as a 1 second screen shot type of video. So I can view an hour in 1 minute. I set up this camera that has high resolution so I can see everything in front of me - evic, vehicles out the windshield, etc after fighting ram on getting the repairs done so that I have iron clad proof of anything going forward.

Someone help me make sense of that. No regen message and I'm 6 hours past the 24 hour timed regen. I highly doubt it made a difference, but the entire 28 hour trip had a 8k pound travel trailer attached. I averaged 9.5mpg there and 11mpg back. Which I attribute mostly to going up in elevation vs down.

Anyways, I'm stumped to say the least. 3k miles ago they replaced the DPF and MAP. Not sure if there was any flash updates that changed the timed regens if EGTs are consistently high....
Click to expand...

Odds are good you missed it.
 
2023 Ram 2500, Bought new in Oct, 2023

Got the regen to often code around 15K kms, I noticed it happening around the 10k km mark but since there was no codes the dealer couldn't do anything.

I've been keeping track of all the regen cycles it goes through.

Most recent regen cycle i am at over 700 kms in regen. I am down to about 500-550km to a tank of fuel. I am on my 15th jug of DEF fluid, since Oct when we bought it new.

So far, the engineers have had the dealer replace the air filter, mass air flow sensor, some vacuum stuff, and today was the fuel pump, nothing has helped or changed anything.

My oil when they sent it out to be 3rd party tested came back as 21.5% fuel dilution

We need to use the truck everyday, cause if I could I would have left it there till they fixed it.

Last 10 regen cycles

37503 - regen
37609 - done
37648 - regen
37742 - done
37825 - regen
37900 - done
37981 - regen
38184 - done
38307 - regen
38788 - done
38920 - regen
39334 - done
39414 - regen
39636 - done
39685 - regen
39821 - done
39900 - regen
40224 - done
40283 - regen
 
tchur1 said:
Thats a regen frequency code so not sure why DEF would impact it but my truck has done this twice before too - thrown a code for regen issues then a day or 2 later cleared on its own and not come back for 3-6 months. Its bizarre and really degrades my confidence in the trucks reliability.
Click to expand...

Yea - definitely odd. Not sure if I should still make an appointment to take it into a mechanic/shop or just let it ride until/if it pops up again.
 
cdnjeepin said:
2023 Ram 2500, Bought new in Oct, 2023

Got the regen to often code around 15K kms, I noticed it happening around the 10k km mark but since there was no codes the dealer couldn't do anything.

I've been keeping track of all the regen cycles it goes through.

Most recent regen cycle i am at over 700 kms in regen. I am down to about 500-550km to a tank of fuel. I am on my 15th jug of DEF fluid, since Oct when we bought it new.

So far, the engineers have had the dealer replace the air filter, mass air flow sensor, some vacuum stuff, and today was the fuel pump, nothing has helped or changed anything.

My oil when they sent it out to be 3rd party tested came back as 21.5% fuel dilution

We need to use the truck everyday, cause if I could I would have left it there till they fixed it.

Last 10 regen cycles

37503 - regen
37609 - done
37648 - regen
37742 - done
37825 - regen
37900 - done
37981 - regen
38184 - done
38307 - regen
38788 - done
38920 - regen
39334 - done
39414 - regen
39636 - done
39685 - regen
39821 - done
39900 - regen
40224 - done
40283 - regen
Click to expand...
21.5% fuel dilution is heinously high.
Hopefully you didn’t do any damage to internals.
That much fuel in a 3 gallon sump would put it way over full and at higher risk for aeration and / or higher levels of oil being moved through the CCV
 
cdnjeepin said:
2023 Ram 2500, Bought new in Oct, 2023

Got the regen to often code around 15K kms, I noticed it happening around the 10k km mark but since there was no codes the dealer couldn't do anything.

I've been keeping track of all the regen cycles it goes through.

Most recent regen cycle i am at over 700 kms in regen. I am down to about 500-550km to a tank of fuel. I am on my 15th jug of DEF fluid, since Oct when we bought it new.

So far, the engineers have had the dealer replace the air filter, mass air flow sensor, some vacuum stuff, and today was the fuel pump, nothing has helped or changed anything.

My oil when they sent it out to be 3rd party tested came back as 21.5% fuel dilution

We need to use the truck everyday, cause if I could I would have left it there till they fixed it.

Last 10 regen cycles

37503 - regen
37609 - done
37648 - regen
37742 - done
37825 - regen
37900 - done
37981 - regen
38184 - done
38307 - regen
38788 - done
38920 - regen
39334 - done
39414 - regen
39636 - done
39685 - regen
39821 - done
39900 - regen
40224 - done
40283 - regen
Click to expand...
My experience with my 2022 had been similar to yours. The jury is still out, but they replaced the MAF and DPF about 3000 miles (4800 ish km) ago. I was regening every 20-50 miles with 36 mile avg active regen mileage. Now it seems to be on 24 hours like new. Part of me is concerned that tuning is killing the DPF, but the other part has me hopeful the bad MAF caused the DPF to go bad. It may be more difficult to tell what, if anything, was actually fixed as I started using archoil as soon as I got it back. Truck currently has just over 30,000 miles (48,000 ish KM)

Have they discussed replacing the DPF? I'm curious if a MAF malfunction is creating downstream consequences. The MAF issue could still be the result of bad programming/tuning so I've yet to be convinced the new MAF will actually solve anything either. However, if the engine truly is running dirty then the DPFs may be failing quite soon.

I learned my neighbor, who has a 2019 HO, had his DPF replaced at 36k miles and again at 58k miles. He also has had a new EGR installed about 80k miles, but went on a diet soon afterwards. On a slightly separate note that isn't emissions related as far as he thought, he also had a turbo go bad at about 60k miles. Truck has 86k miles now.
 
22PearlRamMegaHD said:
My experience with my 2022 had been similar to yours. The jury is still out, but they replaced the MAF and DPF about 3000 miles (4800 ish km) ago. I was regening every 20-50 miles with 36 mile avg active regen mileage. Now it seems to be on 24 hours like new. Part of me is concerned that tuning is killing the DPF, but the other part has me hopeful the bad MAF caused the DPF to go bad. It may be more difficult to tell what, if anything, was actually fixed as I started using archoil as soon as I got it back. Truck currently has just over 30,000 miles (48,000 ish KM)

Have they discussed replacing the DPF? I'm curious if a MAF malfunction is creating downstream consequences. The MAF issue could still be the result of bad programming/tuning so I've yet to be convinced the new MAF will actually solve anything either. However, if the engine truly is running dirty then the DPFs may be failing quite soon.

I learned my neighbor, who has a 2019 HO, had his DPF replaced at 36k miles and again at 58k miles. He also has had a new EGR installed about 80k miles, but went on a diet soon afterwards. On a slightly separate note that isn't emissions related as far as he thought, he also had a turbo go bad at about 60k miles. Truck has 86k miles now.
Click to expand...
Likely the turbo caused or contributed to some of the problems.
 
CFE said:
Yea - definitely odd. Not sure if I should still make an appointment to take it into a mechanic/shop or just let it ride until/if it pops up again.
Click to expand...

OLEJOE said:
Without a code, you would be wasting time to take it to a dealer. No code = no problem in their eyes.
Click to expand...
I made an appointment while mine was throwing a code but it was cleared by the time I took it in. Dealer still looked at it, performed the y43 recall and sent me on my way. I would assume they only
Took the appointment because I also needed the y43 but the service manager tried to tell me that by performing the y43 my codes will be resolved moving forward. This doesn’t check out at all given the role of the y43 sensor but I didn’t fight them on it.
 
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tchur1 said:
I made an appointment while mine was throwing a code but it was cleared by the time I took it in. Dealer still looked at it, performed the y43 recall and sent me on my way. I would assume they only
Took the appointment because I also needed the y43 but the service manager tried to tell me that by performing the y43 my codes will be resolved moving forward. This doesn’t check out at all given the role of the y43 sensor but I didn’t fight them on it.
Click to expand...
Yeah. No need to beat your head against the wall.
 
Interesting tid bit

Got back from Wyoming this week after hauling a travel trailer 1700+ miles, and decided to not use archoil. I filled with the DPF evic at 0. By 200 miles it registered close to the regen (48 grams). I was about half a tank down so I refilled and added the 6500 performance dose. Within 12 miles it passively regened down to about 30 grams (just above the 25 gram mark).

I'm now 100% sure my MAF and DPF replacements solved nothing. This absolutely has to be a tune issue.
 
Had my first non-towing active regen while running the Archoil 6500 additive. Made it 10 engine hours and 382 miles since last regen. Previous two regen’s were both 24 engine hour cycles. The 6500 additive doesn’t seem to be anywhere near as effective at reducing soot but still better than no treatment at all.

At the end of yesterday’s regen cycle, my DPF % REG was showing 8% after key-off cycle and a brief shut down period. I fired the truck back up later that day and drove 16 miles to pick up a few things. Roughly a 30 minute trip on some slower back roads. Upon reaching my destination and shutting the truck down, I restarted and found DPF % REG now showing 18%. So roughly a 10% increase in soot loading in 16 miles, at an average speed of about 32mph.
 
mbarber84 said:
Had my first non-towing active regen while running the Archoil 6500 additive. Made it 10 engine hours and 382 miles since last regen. Previous two regen’s were both 24 engine hour cycles. The 6500 additive doesn’t seem to be anywhere near as effective at reducing soot but still better than no treatment at all.

At the end of yesterday’s regen cycle, my DPF % REG was showing 8% after key-off cycle and a brief shut down period. I fired the truck back up later that day and drove 16 miles to pick up a few things. Roughly a 30 minute trip on some slower back roads. Upon reaching my destination and shutting the truck down, I restarted and found DPF % REG now showing 18%. So roughly a 10% increase in soot loading in 16 miles, at an average speed of about 32mph.
Click to expand...
Unless this is a design and engineering failure of the DPF - such as the differences shown in earlier posts in DPFs from the 2500/3500 to the C&C - it absolutely seems to be tuning that makes it run dirty. Perhaps their fix from the pre-2022 "cummims" scandal has lead to downstream consequences, or the new lockdown/tuning added in 2022. All speculation, but a fix would be nice on a $90k pickup
 
Update on my 19 Limited. So far I've thrown the China Maf sensor and a new differential pressure sensor at it. The new differential pressure sensor I put on bought me 50 more miles before regening. Drove the truck 60 miles to the dealer and dropped it off for a week. They threw another differential pressure sensor at it and drove the truck 250 miles on the highway while they had it. The truck passive regened and is sitting at 1G of soot only the whole time. They stated the readings were still off with the original and second sensor I put on the truck. This new sensor brought the truck into spec of DPS Picked up the truck and drove 60 miles home with it. Dpf stayed at 1G/ 0% on the dpf guage the whole time. Hopefully it's fixed. Huge shout out to this shop for going the extra mile and putting some serious miles on the truck in 2 days.

This issue originally started due to the dealer who did the cp4 recall did not load the 2 out of the 5 pcm Calibration files when doing the recall. This caused excessive fueling and soot
 
AH64ID said:
I noticed this morning that ambient pressure only updates in 0.14 or 0.15 increments, i.e. it started at 13.20 and then showed 13.34 and 13.05 as the other readings as my elevation changed). The MAP sensor updates in 0.01 incriments.

Not sure when you mean by additives needed in California for smoking. There weren't sensors to adjust for elevation, but there are boost inputs to the fuel pump.

Ambient pressure is looked at, but boost pressure (MAP sensor) is a more important reading.
Click to expand...
An update to my findings:
I took the old or original sensor out and installed the new one. It was defective and threw a code (p2580) so I reinstalled the old sensor and now it’s showing BAP @ 14.6 which is exactly what it is supposed to show. Maybe I had a bad connection ? Anyhow, cleared the code and it didn’t return.
 
22PearlRamMegaHD said:
Unless this is a design and engineering failure of the DPF - such as the differences shown in earlier posts in DPFs from the 2500/3500 to the C&C - it absolutely seems to be tuning that makes it run dirty. Perhaps their fix from the pre-2022 "cummims" scandal has lead to downstream consequences, or the new lockdown/tuning added in 2022. All speculation, but a fix would be nice on a $90k pickup
Click to expand...
I read an article somewhere on the internet (so it has to be true) the main reason for the litigation against Cummins was the tune allowed the truck to pass smog inspection at idle or at any continuous rpm up to redline. The NOX emissions (heat related) would increase under normal driving. So they encouraged Cummins to lower the NOX by increasing the fuel and increasing the soot since it has a filter to capture that. Even though it has the SCR to lower the NOX emissions with help from the DEF.
 
OLEJOE said:
My DPF gauge was on 25% or 1/4 with 696 miles and 20 hours since my last regen. I decided to hook to the TT and clean it out. In less than 20 miles it was back to zero. Set the cruise on 63 mph in some rolling hills. To get it to passively regen empty, takes 50-60 miles at 75+ mph. I’m running 1.5 oz per 10 gallons with the 6500d right now. I probably could have made it to the 24 timed regen without the towing but I have some appointments and didn’t want to shut it down during a regen and have to start it over. I’m going with 2 oz per 10 next time and I’m going back to the Exxon fuel.
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diesel fuel is a common distribution product . One refinery will distribute diesel to many different stations under different names. You may think you are getting Exxon diesel but you are getting the same diesel that the station 2 blocks away is getting .
 
Nick said:
diesel fuel is a common distribution product . One refinery will distribute diesel to many different stations under different names. You may think you are getting Exxon diesel but you are getting the same diesel that the station 2 blocks away is getting .
Click to expand...
The Exxon station is actually the bulk distributor for our area. They just have a satellite retail outlet and they also sell only non ethanol gasoline and off road diesel.
 
In your case it is Exxon . The point being that the guy down the street goes to Chevron and thinks he is buying Chevron diesel when he is actually buying Exxon .
 
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