DPF soot % readout?

[rickinAZ]

My soot% jumps around to a certain extent. Overall it will trend upward to 80% before it regens, but it'll go +/- 5% at any given time, where it used to march up the dial one percent point at a time. Sensor failing?

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[zouch]

you're using an iDash, right?

i've never noticed mine move more than ~1% up or down at a time.

i know it's probably a PITA to get to them, but i'd try unplugging and reconnecting the iDash connectors first; maybe even treat them to a spot of Contact Cleaner.
and/or i'd probably call Banks to see what they say; they've been pretty helpful when i've gotten them on the phone.

My soot% jumps around to a certain extent. Overall it will trend upward to 80% before it regens, but it'll go +/- 5% at any given time, where it used to march up the dial one percent point at a time. Sensor failing?

 

[PeCoasta]

Ive noticed that on my scangauge a few times. Sometimes when it gets close to 80, like 78-79, itll jump up and start a regen, usually if Im doing stop and go type driving. I have seen it be like 20% and then itll jump to 23% or something like that but its only happened a couple of times.
Coincidentally I have also noticed this on my edge insight in my f350. Sometimes after a regen finishes the time to next regen % will show 12%, and then in a little bit drop to 9%.

I doubt its a failing sensor. Im sure theres all sorts of stuff the ecu/pcm might be doing in the background to account for that happening.

Unless it happens regularly all the time, then maybe its an issue.

 

[BDinTX]

Mine did that once, immediately after I refueled and switched fuel additives. I went from Hotshots EDT to Optilube XPD. It stabilized after about 50 miles and hasn’t done it again.

 

[Neutrino]

I use the Scan Gauge 3 and have seen the soot % jump by 2% to 3% only when I have heavy foot syndrome. When driving normally it only goes up around 1% at a time.

There are two different parameters for soot level that I watch.
The first one is the Regen Trigger and it is accurate to two decimal places "XX.XX".

The second one I use is the Soot Load and it is accurate to the whole number "XX".

I have never seen it jump around up and down. I would check any and all related sensors and wiring connectors. If you have aftermarket electrical/electronics... Start with checking them first. I would also check for a exhaust leaks as well.

 

[greige]

I have been doing less highway driving than typical and was watching the soot % climb faster than normal, as expected. Since I have been watching it, I have noticed that it jumps quite a bit and have decided it is connected to the type of driving I have been doing. Mostly I am doing ~45 mph in stop and go. I see the % a bit higher during this. Then occasionally I have a quick jump on the highway/interstate for a couple minutes (not enough really for passive regen, but maybe) and I see the % has dropped during this. Then at the light on the exit, it's right back up to where it was before the quick highway jaunt.
Also, when I am normally <40% with plenty of passive regen time on the highway, I have not seen it jump, but I am also not paying as much attention since it is nowhere near the 80% trigger.

 

[Duc Hunter]

My iDash doesn’t jump. Just goes up around town, and down during a regen or when I take a long freeway run.

 

[NyRey87]

I’ve noticed just recently that my soot load goes up 2-3 at a Time very randomly. That and I’m noticing distance between regens decreased a lot. Usually around town with mixed small freeway trips the lowest I had seen over the last 10k miles I’ve had the Jeep was around 219. Then the other day it plummeted to 137, The next was 158. And on my regen today it only cleared out to 16, I’ve never seen it do that before, it’s ALWAYS gone to 9 then stopped the active regen. I’m hoping nothing is wrong, other than the soot levels increasing quicker nothing feels different from the Jeep. Any ideas?

 

[BDinTX]

The two regens after my previous reply were more like you described. Wondering if there may have been an over the air update? Other thing that crossed my mind is noise on the CAN bus may be causing bogus readings from the iDash…. I had an ABS warning a few weeks ago there were a TON of codes, many of them were “implausible data”.

 

[Grayhound]

I'm at 76k i do mostly highway and I watch my scanguage quote a bit.

With highway driving at that is either interstate 75ish mph and back road 55mph

I see my soot load hover near low 30s most of the time. It bounces around but a couple hours in and it'll settle in.

The regen triggers and the soot load jumps to 80 and starts a burn down to 9.

This last time I shut off mid regen at 50%. It climbed from there to 70 till I hit the highway and it burned down i to the 30s.

Regens seem to be triggered anywhere from 725 miles between to 799 miles between regens. There does not seem to be a consistent pattern.

 

[NyRey87]

I'm at 76k i do mostly highway and I watch my scanguage quote a bit.

With highway driving at that is either interstate 75ish mph and back road 55mph

I see my soot load hover near low 30s most of the time. It bounces around but a couple hours in and it'll settle in.

The regen triggers and the soot load jumps to 80 and starts a burn down to 9.

This last time I shut off mid regen at 50%. It climbed from there to 70 till I hit the highway and it burned down i to the 30s.

Regens seem to be triggered anywhere from 725 miles between to 799 miles between regens. There does not seem to be a consistent pattern.

Wow, with almost 100% highway driving on a roadtrip I hit 550 or so, never any higher. Over 700 is crazy!

 

[Rangemaster]

I used jscan to force a regen two weeks ago, soot level went from 90% to 17%. Then with only 20 miles on jeep since the last regen the jeep decided to go into regen while driving. Did my soot levels really go up that much in 20 miles?

 

[NyRey87]

I used jscan to force a regen two weeks ago, soot level went from 90% to 17%. Then with only 20 miles on jeep since the last regen the jeep decided to go into regen while driving. Did my soot levels really go up that much in 20 miles?

That’s really odd too, I’ve not had mine to that yet.

 

[26 confirmed]

I’ve noticed just recently that my soot load goes up 2-3 at a Time very randomly. That and I’m noticing distance between regens decreased a lot. Usually around town with mixed small freeway trips the lowest I had seen over the last 10k miles I’ve had the Jeep was around 219. Then the other day it plummeted to 137, The next was 158. And on my regen today it only cleared out to 16, I’ve never seen it do that before, it’s ALWAYS gone to 9 then stopped the active regen. I’m hoping nothing is wrong, other than the soot levels increasing quicker nothing feels different from the Jeep. Any ideas?

My 2020 started doing this, only 30,000 miles. Dealer said dpf had soot build up and was clogging up fast causing more regens. They replaced the filter under warantee. Back to normal. It caused a p2002 permanent code that went away after new filter was installed.

 

[NyRey87]

My 2020 started doing this, only 30,000 miles. Dealer said dpf had soot build up and was clogging up fast causing more regens. They replaced the filter under warantee. Back to normal. It caused a p2002 permanent code that went away after new filter was installed.

Interesting, mine is a 21k miles for a 21’
I wonder if I should even bother to reach out. Or wait till I have an issue. I have a Mopar extended warranty on it for a few more years.

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