Regens at alarming rate!

[mbarber84]

Part of the recall is a software update so it's possible there is more to the software update than just adding the sensor to the software. I'm sure the software update will bring the software to the most recent version which may be why some are having regen issues after the update. I'm 100% sure that there is more to these regen issues than just using the wrong air filter or diving style. Programing/sensor tolerance must also be part of this.
I also think where the air is drawn into the filter plays into this. The air intake is between the shutters and the radiator. Seems that this could cause hot engine compartment air to enter the filter housing at times.

Jay

Very true. But here’s the thing, there are trucks experiencing the exact same DTC’s, symptoms, etc prior to having Y43 completed. Many of which go in under the assumption that Y43 will fix the issue. When they leave with the update completed, nothing changes and the truck continues to operate the exact same way. I’m not saying the software flash doesn’t change some parameters, it likely does, but whatever it changes, I don’t believe that it would cause an instant regeneration issue post-update. My guess is these trucks are simply reaching the point where the issue “starts”. My own 2022 did this exact thing. It was 100% fine for nearly 33,000 miles. Regenerated only on the 24 hour schedule. Never missed a beat. On 6/27/23 it initiated a regeneration with 1,053 miles since last one and 24 engine hours. On 7/7/23 it initiated a regeneration with only 328 miles and 9 hours since last. Never to recover from that for months until I switched fuel sources and stopped using additive. It’s now on the mend again after a lot of documentation and experimenting on my part. These truck can clearly change “overnight”.

 

[mbarber84]

I made the following three changes after the 9/30/2033 regeneration cycle:

1. Eliminated the use of Hotshots EDT
2. Switched from Sheetz diesel to BP diesel
3. Increased my highway speed from 70-72mph to 75mph as much as possible.

Note the change from 10/6 regeneration cycle moving closer to today. As of right now my truck is sitting outside with a DPF gauge reading 0%. I’m currently 742 miles and 18 hours since last regen cycle. The truck has seen no towing, no loaded operation, just unloaded daily driving with a mix of interstate and local driving.

I still cannot account for the massive changes in the way the truck operated. It has not been ECM / PCM flashed recently. It sees all OEM correct filters and amsoil fluids.

 

[mhraxo]

I made the following three changes after the 9/30/2033 regeneration cycle:

1. Eliminated the use of Hotshots EDT
2. Switched from Sheetz diesel to BP diesel
3. Increased my highway speed from 70-72mph to 75mph as much as possible.

Note the change from 10/6 regeneration cycle moving closer to today. As of right now my truck is sitting outside with a DPF gauge reading 0%. I’m currently 742 miles and 18 hours since last regen cycle. The truck has seen no towing, no loaded operation, just unloaded daily driving with a mix of interstate and local driving. View attachment 65411

I still cannot account for the massive changes in the way the truck operated. It has not been ECM / PCM flashed recently. It sees all OEM correct filters and amsoil fluids.

Kudos to you for all that documentation. I def am not documenting all that.
I have to buy fuel where ever im at and that can be in a number of different states depending
All I know is i took in for the recall, pulled out made a right and 2 miles later all this started and been happening for the last 1500 miles now. first 6000 miles this thing worked perfectly

 

[mbarber84]

Kudos to you for all that documentation. I def am not documenting all that.
I have to buy fuel where ever im at and that can be in a number of different states depending
All I know is i took in for the recall, pulled out made a right and 2 miles later all this started and been happening for the last 1500 miles now. first 6000 miles this thing worked perfectly

Exhaust leaks can cause frequent regeneration issues. As part of the Y43 recall, they have to remove the threaded plug, install the new sensor, and then install the associated control module under the truck. It may be that during that install, they could have created a minor exhaust leak that’s throwing off the pre- and post- DPF pressure readings and forcing the differential pressure sensor to generated false soot estimates. This might be a malpractice issue, not a software / hardware issue.

 

[joace]

A lot new threads pop up from this post in last 2 days, keep my eyes open whether these can be nailed down to the real issue, based on @Se7enoverland said and another guy's post (maybe on FB group) about regen issue disappeared after installing Banks monter horn, highly suspect the issue related to MAP, with horn changed with different inner structure, that may impact how MAP sensor check the pressure and sent the signal the ECM, my 2cent.

 

[DougB]

Thanks for all the research and insight. Hopefully, a fix is being talked of behind Ram’s doors.

Here’s my German MAF sensor. Averaging 132 miles between regens in last 8 regens. My drive cycle is in-city trips. About to tow travel trailer this weekend but not a far trip, ~1.5 hrs each way. Hoping it passively regens during the tow.

View attachment 65386

Another regen “on schedule” at 137 miles. Was on the interstate when it started. Took 27 miles at 70+mph to complete. Interestingly, it went down to 95% on the iDash in about 5 miles then back up to 100% for a few miles before starting the trend down till it finished around 47%. The dash gauge read 0 at that point.

 

[joace]

Another regen “on schedule” at 137 miles. Was on the interstate when it started. Took 27 miles at 70+mph to complete. Interestingly, it went down to 95% on the iDash in about 5 miles then back up to 100% for a few miles before starting the trend down till it finished around 47%. The dash gauge read 0 at that point.

When re-ignite your truck, the DPFRG% on your idash should drop to around 20%, after that % goes through a few rounds of up and down between 20% and 40%, it will stay steadily and increase from 40%, that's the pattern i found from my idash.

 

[mhraxo]

A lot new threads pop up from this post in last 2 days, keep my eyes open whether these can be nailed down to the real issue, based on @Se7enoverland said and another guy's post (maybe on FB group) about regen issue disappeared after installing Banks monter horn, highly suspect the issue related to MAP, with horn changed with different inner structure, that may impact how MAP sensor check the pressure and sent the signal the ECM, my 2cent.

So someone installed the Banks ....

Monster-Ram® Intake and Killer Grid Heater Upgrade for 2019-2024 Ram 2500/3500 6.7L - Red - Banks Power

Banks Monster-Ram® improves throttle response and fuel economy. Prevents engine damage. The original cure for the killer grid heater. 50-state compliant.

bankspower.com

and that solved the issue?..... i'll buy one today if that resolves this.... i was looking at that any ways cause the next issue RAM seems to avoid is the bolt that melts off and falls in cylinder 6 and costs you $20k+ to fix

 

[flan]

So someone installed the Banks ....

Monster-Ram® Intake and Killer Grid Heater Upgrade for 2019-2024 Ram 2500/3500 6.7L - Red - Banks Power

Banks Monster-Ram® improves throttle response and fuel economy. Prevents engine damage. The original cure for the killer grid heater. 50-state compliant.

bankspower.com

and that solved the issue?..... i'll buy one today if that resolves this.... i was looking at that any ways cause the next issue RAM seems to avoid is the bolt that melts off and falls in cylinder 6 and costs you $20k+ to fix

MAF/MAP have both been thrown around here over the last couple pages, seems like MAF is more talked about so the Bank$ horn won’t solve that issue.

 

[OLEJOE]

Can someone tell me how to get the connector off of the MAF sensor? I’ve looked and looked and can’t figure it out. Thanks

 

[Riddick]

Can someone tell me how to get the connector off of the MAF sensor? I’ve looked and looked and can’t figure it out. Thanks

There is a red locking tab you will need to pull out first. After this it should be like a normal connector, squeeze it and pull it off. On this one you might have to press on the red locking tab portion to release it... I cant remember. Also, as you depress the release you should be pushing in on the connector... once you push in you will be able to then pull it off.

 

[OLEJOE]

There is a red locking tab you will need to pull out first. After this it should be like a normal connector, squeeze it and pull it off. On this one you might have to press on the red locking tab portion to release it... I cant remember. Also, as you depress the release you should be pushing in on the connector... once you push in you will be able to then pull it off.

Thanks

 

[CaptainMike]

I hit the road a bit ago towing my 5th and I'm seeing some nice passive regens. It's lovin' those higher EGT's. IDK, but it seems to me there should be a way to tweak the regen cycle points or conditions.

 

[mhraxo]

I hit the road a bit ago towing my 5th and I'm seeing some nice passive regens. It's lovin' those higher EGT's.

Mines fine towing, meter never comes off 0
I just drove down the highway empty and it regened at 26 miles and kicked on a check engine light.... total POS

 

[CaptainMike]

Yup.

 

[OLEJOE]

Probably the P2459 (I believe it is) regen frequency.

 

[OLEJOE]

There is a red locking tab you will need to pull out first. After this it should be like a normal connector, squeeze it and pull it off. On this one you might have to press on the red locking tab portion to release it... I cant remember. Also, as you depress the release you should be pushing in on the connector... once you push in you will be able to then pull it off.

Mine has a gray tab. When you pull up on it there’s a little black cover that pops off so you can push on the connector lock. Looked spotless but I sprayed it down anyway.

 

[OLEJOE]

That’s funny you say that. Because I have the German one.

Mine is from a different country than Germany and China. Cleaned it while I had it out but it wasn’t hardly dirty at all. But it looks like it may have been changed before because the locking tab in the connector was missing.

And I bought the truck new with 24 miles on it. Idk

 

[Riddick]

Mine has a gray tab. When you pull up on it there’s a little black cover that pops off so you can push on the connector lock. Looked spotless but I sprayed it down anyway.

Sorry about that, I was reverting back to my Ford days..... they had red tabs on them.

On my 22 my sensor was made in Germany,.

 

[OLEJOE]

Sorry about that, I was reverting back to my Ford days..... they had red tabs on them.

On my 22 my sensor was made in Germany,.

The MAF sensor is made in Germany but the MAP sensor is made in the Czech Republic. I wonder if it’s the sensor fluctuating or the ECM not reading it correctly. I have 7900 miles and there was barely any soot on the MAP sensor so it must be running pretty clean.