OLEJOE
Well-Known Member
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Automatic Regen too often
- Thread starter k72nova
- Start date
DougB
Well-Known Member
Update since adding the 6400 cleaner.
DPF climbed up to about 85% on the iDash and about 40% on EVIC gauge during my typical around town commute and errands. Then we got on the highway for our trip out west. Within about 20-30mi it had dropped back to 45% on the iDash and EVIC was back to zero. 16 hours of highway driving and dash stayed at zero while iDash started to climb higher simply due to it measuring on the 24 hr clock versus soot.
Once I burned thru the tank with the 6400, I added the 6500 at the performance dose (2oz per 10gal) so 10oz in my case. Once out west in the mountains, the exhaust temps have no problem staying well above passive regen levels. I added some fuel mid trip so I was probably diluted to about the normal 6500 dose then.
Have a few more hours to go before a 24 hr regen. At about 1150mi since last regen. No clue if the Archoil is helping mileage since been on highway and then into the mountains. Highway part of the trip I got 17.7mpg at 70-75mpg. But since I put on 285/75/18 Falkens in January along with 1” front level, those have likely hurt mileage. Best I’ve even gotten with this truck is 19.2-19.5 with the factory AT Firestones on a highway trip. But that wasn’t climbing in elevation like this trip.
So I think the Archoil is helping. Going from 40-ish to zero on the gauge from passive regen in highway was impressive. Don’t think I’ve ever seen it do it that quickly. Mixed opinion on the regular treatment so far. I’ll need to see if it helps once back to typical routine. In about a week.
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The dash gauge doesn’t take time into account, only soot loading.
96% on the SG correlates to 23 hours since last regen. Can you add a decimal point to your SG?
You can’t use the EVIC to follow time based regens, even thou the PID reading will.
steve49
Well-Known Member
The newer Scangauge III does use a decimal point but is larger in size, and I like the model II because it's compact, and sits nicely on the steering column. The model III does allow more PID viewing options, color screen, whereas the II only allows you to view four items at a time. But since I'm only interested in the % , on/off, 24hr, miles between regen, the II covers that. I have a tray on the floor under the dash and that's where the III is setting for now, haven't decided which I'll end up using all the time.
joshuaeb09
Well-Known Member
I'm 100% convinced its in the tuning. My truck historically had been fine even into the 80s, but once it gets into the 90s it gets downright militant about trying to bring down the pre SCR NOX (I blame CARB). This could also explain the P0402 some get with the Banks intake (I could only run it in the "winter" here), if its fooling the MAF into leaning it out a tad, the truck could go ape**** with EGR to bring pre SCR NOX back down. At-least that's what I speculate anyhow.
Almost feels as if they only test this crap in California or other temperate climates where the weather is just about always the right conditions for EGR, DPF, and SCR to function well within the design parameters.
LegendaryLawman
Legendary Pessimist
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My new 24 has 600 miles and just went through a regen, no excessive idle. Prob 60% city and rest highway. So much for 1000 miles. Somehow it says I’ve got 20 hours of drive time and 7 hours of idle which is no way correct, lol
Jenny Craig is looking better and better
OLEJOE
Well-Known Member
My 22’ regened the first time at 300 miles and 10 hours.
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At 27 hours that’s at least your second regen.
City driving adds up idle time fast at stop lights.
1000 miles only happens if your average speed is at least 41.6 mph and the driving doesn’t involve soot loading.
If the SGIII is using the PID for miles between regens then it’s not accurate, same with avg regen time.
steve49
Well-Known Member
Can't say other than those are the factory PID's downloaded directly from the truck itself, during the SGIII setup?
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Very likely not accurate then, but you can keep notes and check.
oledirteh
Well-Known Member
my regens have stopped as it hasnt moved since i dropped it off last week at the dealer 
joshuaeb09
Well-Known Member
These newer trucks are pretty aggressive about what they consider idle hours. When I have to go through San Antonio, Austin, Houston, or Dallas during rush hour - I know I'm going to add at-least 1 idle hour to my clock.
firemansdiesel
Active Member
I live in California and my truck has seen lows 30* to highs 110* and no noticeable change when it comes to regens. I did not read all this thread since it’s similar people posting, but it’s not a software problem since all trucks would be acting up and would trigger a TSB or recall for new software update. While some had their EGR and DPF replaced and very little seem to fix the issue that route (throwing parts at it). Someone should not have to throw additives to make the truck run correctly. A believable cause would be a bad batch or failing of DPF sensor(s) that are not reading correctly and having constant regens.
My truck is a March build of MY22 and have zero issues to this point. I have my 24hr active regens and my DPF rarley moves off zero in between my active regens. I know the 19+ are finicky with air filters etc, but all equel with up to date software, correct filters and had all emissions components replaced or working correctly. Some type of sensor is bad creating bad readings and constant regens.
My $0.02
oledirteh
Well-Known Member
well after 34 pages im pretty sure a theme has been established.
Blackpowder
Active Member
I ordered my 21 and when I picked it up in April that year it had around 17 miles and over 7 hours of idle time on the register. I attributed that to transport (to sub-vendor(s) and final destination) and somebody just letting it sit and idle.
Current results from my regen frequency issue tracking data:
Deltron
Active Member
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Obviously that isn't what it's doing. Mine will go from around 40% to 100%, regen back to 40% or so and 40 or 50 miles later back to 100% and regen again.
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You’re talking about a different PID.
Update:
My truck initiated an active regeneration today. 877 miles and 24 engine hours since the last regeneration cycle. The cycle took about 17 minutes and 21 miles to complete, traveling at about 75-77mph, with one or two brief speed reductions during the cycle. The EVIC DPF gauge was showing 37.5%. So to recap: the truck has had two 50 gallon tanks of fuel through it since the last regeneration cycle. The first tank was treated with Archoil 6400D fuel system cleaner. The second tank was treated with Archoil 6500 fuel treatment at the 1oz per 10 gallon rate.
This is the first time since April of this year that I was able to achieve a 24 hour regeneration cycle.
Something odd I noticed today:
1. A three separate times during my travels today, the iDash “DPF % REG” PiD showed 100% but the truck did not engage an active regeneration. It would hit 100% then slowly fall back to around 93%. Then climb again and so on. It did finally engage a regeneration, but not until roughly 4-5 minutes after the DPF % REG value hit 100% the third time. I had incorrectly assumed that, when the DPF % REG hit 100%, an active regeneration was immediately triggered but that doesn’t seem to be the case.
2. As soon as the active regeneration cycle started, the DPF % REG value jumped from 100% down to 78% and then slowly fell as the EGT’s continued to rise. That value read 43% when the cycle finished. I don’t recall ever seeing that dramatic jump in % on the last regen cycle but I can’t remember for sure.
The truck sat for approximately 2 hours after I reached my destination. When I got back in the truck to go home, the DPF % REG was showing 16% and slowly climbed. Now it’s time to see if this whole process was just a fluke, or if the Archoil additives can yet again push the interval between regen cycles. Time and miles will tell.
Here are three time-stamped photos showing the DPF % REG at 100% but you can tell by the EVIC DPF screen it’s not running or initializing an active regen cycle. I did confirm it was not in regeneration by cross checking the DPF REG STATUS as “off” in the iDash. Please excuse the photo quality as these are screenshots of the actual photos, iPhone doesn’t have a way to timestamp the photo in the image itself.
My truck initiated an active regeneration today. 877 miles and 24 engine hours since the last regeneration cycle. The cycle took about 17 minutes and 21 miles to complete, traveling at about 75-77mph, with one or two brief speed reductions during the cycle. The EVIC DPF gauge was showing 37.5%. So to recap: the truck has had two 50 gallon tanks of fuel through it since the last regeneration cycle. The first tank was treated with Archoil 6400D fuel system cleaner. The second tank was treated with Archoil 6500 fuel treatment at the 1oz per 10 gallon rate.
This is the first time since April of this year that I was able to achieve a 24 hour regeneration cycle.
Something odd I noticed today:
1. A three separate times during my travels today, the iDash “DPF % REG” PiD showed 100% but the truck did not engage an active regeneration. It would hit 100% then slowly fall back to around 93%. Then climb again and so on. It did finally engage a regeneration, but not until roughly 4-5 minutes after the DPF % REG value hit 100% the third time. I had incorrectly assumed that, when the DPF % REG hit 100%, an active regeneration was immediately triggered but that doesn’t seem to be the case.
2. As soon as the active regeneration cycle started, the DPF % REG value jumped from 100% down to 78% and then slowly fell as the EGT’s continued to rise. That value read 43% when the cycle finished. I don’t recall ever seeing that dramatic jump in % on the last regen cycle but I can’t remember for sure.
The truck sat for approximately 2 hours after I reached my destination. When I got back in the truck to go home, the DPF % REG was showing 16% and slowly climbed. Now it’s time to see if this whole process was just a fluke, or if the Archoil additives can yet again push the interval between regen cycles. Time and miles will tell.
Here are three time-stamped photos showing the DPF % REG at 100% but you can tell by the EVIC DPF screen it’s not running or initializing an active regen cycle. I did confirm it was not in regeneration by cross checking the DPF REG STATUS as “off” in the iDash. Please excuse the photo quality as these are screenshots of the actual photos, iPhone doesn’t have a way to timestamp the photo in the image itself.
DougB
Well-Known Member
Mine jumps down at a 24hr regen, too. I’ve not had many of those so I don’t know what’s normal but this last one jumped down to 47%,iirc. Was surprised it dropped that much but given I was highway for about 17 hours and then in mountains climbing a lot, I don’t think there was much soot to clean out.
Strangely, today after just 211 miles, I had a soot based regen as hadn’t been doing enough climbing to passively regen. Just before the regen it was 69% when started out this morning then while climbing up in elevation a bit it rapidly rose to the 90s and once leveled off it slowly went to 100 and started a regen. Couldn’t finish the regen before reached destination but it was close at mid 40s. On return trip it finished the regen. Upon next start an hour or so later it was down to 4%. Hadn’t ever seen it that low after a regen.
Again, not sure how much the 6500 is helping here in the mountains. But I’ll keep adding it and see how it does headed home which is all downhill, roughly 7000 ft to 700 ft.