How often has your exhaust system done a Regen

[Overland-2021]

If you hooked up a gauge to show what the computer has actually recorded I think you will be unpleasantly surprised to see how many times you have done an Active regen.

You haven't noticed one on the dash EVIC because you did not shut down during an Active Regen multiple times.

There's a few good threads on the Wrangler EcoDiesel forum that go over this as they've had this engine up to a year longer than any Gladiator.

https://www.jlwranglerforums.com/forum/threads/exhaust-system-regeneration-message.59142/

Interesting.
I am a little confused though - I thought the active regen gave you a notice in the dash.
And the passive ones don't.
I think the passive ones have been running as I have an OBD reader - the only indication I get is a 1(on) or a 0(off) so I thought that was a passive regen - and they happen often when Im on the highway - not sure how often but went about 350 miles pulling my camper and it ran 7-8 times.
Just never saw an active one so assumed it never did.
Is that wrong?

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[BEERviper]

Interesting.
I am a little confused though - I thought the active regen gave you a notice in the dash.
And the passive ones don't.
I'm sure the passive ones have been running just never saw an active one so assumed it never did.
Is that wrong?

No you will not see anything on the dash during an Active Regen nor will you see anything on the dash during a Passive Regen. The only way you are going to know is if you have some sort of gauge hooked up to the OBD II port and read the correct PID's from the engine management computer.

The only time you will see something on your dash about a regeneration is because there would have been multiple Active regens that started but never completed (typically because the engine was shut down during an Active Regen).

Here are a couple of screenshots from the OBD Fusion app I run that connects via Bluetooth to a VeePeak OBDCheck BLE+ OBD2 Scanner...

This was the main screen I view while driving, you can see the Green Circle and the Red Circle below the boost reading ... when you only see the green circle it's doing a passive regen but when you see both green and red it's in the middle of an Active regen (see the DPF% at 100% ... even though it's not technically at 100% it's really somewhere between 80-100%):

Just this last Friday I was watching another generic screen I made in the OBD Fusion app for DPF temperature while a Passive Regen was going on:

Not long after that an Active Regen started where you will notice the DPF temps quickly rise above 1000°F because diesel fuel is injected into the DPF to raise the temps to burn off the soot (yes this will affect your fuel economy):

 

[Overland-2021]

Interesting.
I am a little confused though - I thought the active regen gave you a notice in the dash.
And the passive ones don't.
I'm sure the passive ones have been running just never saw an active one so assumed it never did.
Is that wrong?

No you will not see anything on the dash during an Active Regen nor will you see anything on the dash during a Passive Regen. The only way you are going to know is if you have some sort of gauge hooked up to the OBD II port and read the correct PID's from the engine management computer.

The only time you will see something on your dash about a regeneration is because there would have been multiple Active regens that started but never completed (typically because the engine was shut down during an Active Regen).

Here are a couple of screenshots from the OBD Fusion app I run that connects via Bluetooth to a VeePeak OBDCheck BLE+ OBD2 Scanner...

This was the main screen I view while driving, you can see the Green Circle and the Red Circle below the boost reading ... when you only see the green circle it's doing a passive regen but when you see both green and red it's in the middle of an Active regen (see the DPF% at 100% ... even though it's not technically at 100% it's really somewhere between 80-100%):

Just this last Friday I was watching another generic screen I made in the OBD Fusion app for DPF temperature while a Passive Regen was going on:

Not long after that an Active Regen started where you will notice the DPF temps quickly rise above 1000°F because diesel fuel is injected into the DPF to raise the temps to burn off the soot (yes this will affect your fuel economy):

No you will not see anything on the dash during an Active Regen nor will you see anything on the dash during a Passive Regen. The only way you are going to know is if you have some sort of gauge hooked up to the OBD II port and read the correct PID's from the engine management computer.

The only time you will see something on your dash about a regeneration is because there would have been multiple Active regens that started but never completed (typically because the engine was shut down during an Active Regen).

Here are a couple of screenshots from the OBD Fusion app I run that connects via Bluetooth to a VeePeak OBDCheck BLE+ OBD2 Scanner...

This was the main screen I view while driving, you can see the Green Circle and the Red Circle below the boost reading ... when you only see the green circle it's doing a passive regen but when you see both green and red it's in the middle of an Active regen (see the DPF% at 100% ... even though it's not technically at 100% it's really somewhere between 80-100%):

Just this last Friday I was watching another generic screen I made in the OBD Fusion app for DPF temperature while a Passive Regen was going on:

Not long after that an Active Regen started where you will notice the DPF temps quickly rise above 1000°F because diesel fuel is injected into the DPF to raise the temps to burn off the soot (yes this will affect your fuel economy):

Thanks for the details - I did save the data from my last big trip so I need to look through that.

 

[Overland-2021]

Thanks for the details - I did save the data from my last big trip so I need to look through that.

Ok.
I went through the spreadsheet with the raw data.
Now I'm even more confused

Trip Time - 4.6 hrs
Trip distance - 229.7 miles
Almost all highway.

I cannot see an active regen kicking off the entire time.
Passive regen ran several times, once for 45mins, for a total time of about 3.5hrs.

Here are some readings (rounded off for space):
Trip Time - 4.6 hrs
Trip distance - 229.7 miles
DPF bank 1 inlet temperature sensor (F) - Max reading 899°F
DPF bank 1 outlet temperature sensor (F) - Max 855°F

These readings never changed:
DPF regen type - 0
Average distance between DPF regens (miles) - 443.659
Average time between DPF regens (min) - 810

DPF temp readings were about:
5-600°F range with regen=o
750-850°F with regen=1

Be happy to share my spreadsheet if anyone can make more sense of it...

 

[Gruffid]

I’ve put more than 13k miles on and I haven’t seen any AR notices yet. However, I think I can usually tell when it’s happening by watching my fuel economy.

 

[BEERviper]

I’ve put more than 13k miles on and I haven’t seen any AR notices yet. However, I think I can usually tell when it’s happening by watching my fuel economy.

@Gruffid ...

No you will not see anything on the dash during an Active Regen nor will you see anything on the dash during a Passive Regen. The only way you are going to know is if you have some sort of gauge hooked up to the OBD II port and read the correct PID's from the engine management computer.

The only time you will see something on your dash about a regeneration is because there would have been multiple Active regens that started but never completed (typically because the engine was shut down during an Active Regen).

Here are a couple of screenshots from the OBD Fusion app I run that connects via Bluetooth to a VeePeak OBDCheck BLE+ OBD2 Scanner...

 

[Hostile4Jeeps]

Beerviper…

Maybe the guys that sell the “gauges” want you to believe that…. MAYBE, they show you what you’d like to see??? With that said 1k mile and no known regen what so ever yet.

 

[Gruffid]

@Gruffid ...

@BEERviper,

I appreciate you calling attention to your previous post. I saw it, and was just saying that I haven’t even seen the ones you mentioned we could see during the over 13k miles I’ve driven my JTRD.

?

 

[BEERviper]

Ok.
I went through the spreadsheet with the raw data.
Now I'm even more confused

Trip Time - 4.6 hrs
Trip distance - 229.7 miles
Almost all highway.

I cannot see an active regen kicking off the entire time.
Passive regen ran several times, once for 45mins, for a total time of about 3.5hrs.

Here are some readings (rounded off for space):
Trip Time - 4.6 hrs
Trip distance - 229.7 miles
DPF bank 1 inlet temperature sensor (F) - Max reading 899°F
DPF bank 1 outlet temperature sensor (F) - Max 855°F

These readings never changed:
DPF regen type - 0
Average distance between DPF regens (miles) - 443.659
Average time between DPF regens (min) - 810

DPF temp readings were about:
5-600°F range with regen=o
750-850°F with regen=1

Be happy to share my spreadsheet if anyone can make more sense of it...

So Chris, I'm curious what are you using to gather this information into a spreadsheet format?

In looking at your data and the fact that your trip was mostly highway it would be unlikely that an Active Regen would be needed since the DPF temps would get high enough to passively burn off soot slowly.

This was my same experience on my recent trip that spanned nearly 800 miles 1 way (which was only 2 tanks of fuel) and my soot level hovered around 35% the whole time.

If you drive your JT 95% highway all the time it's possible you've never had an Active regen, however the average distance between DPF regens suggests you have certainly had Active regens.

However I'm not convinced those numbers are an accurate view of Active Regens, mine recently changed to 174 miles between regens ... if that were true over all the miles I've driven then that would suggest more than 60 Active regens over 10,700 miles which I know isn't true. My guess is that the computer only keeps track of the most recent "X" number or regens and then calculates the miles driven. Since my long trip back in July I have been making a lot of short trips which certainly pushes the soot level up quickly.

 

[BEERviper]

Beerviper…

Maybe the guys that sell the “gauges” want you to believe that…. MAYBE, they show you what you’d like to see??? With that said 1k mile and no known regen what so ever yet.

You do realize how ridiculous that sounds don't you? It's a government conspiracy against Gladiator Diesel owners that don't want as many Active Regens ?

It's not like this is a Gladiator diesel only gauge. OBD Fusion is compatible with all model year 1996 and newer cars and light trucks sold in the United States. ?

 

[BEERviper]

@BEERviper,

I appreciate you calling attention to your previous post. I saw it, and was just saying that I haven’t even seen the ones you mentioned we could see during the over 13k miles I’ve driven my JTRD.

?

Wasn't trying to be a d!ck just pointing out that you had a similar comment as Overland-2021 about not seeing any AR notices ... which you shouldn't with normal driving activity.

I believe that is the way Jeep/FCA/Stellantis wants it to be is just drive it and everything will happen behind the scenes.

For some of us, we just want to know what's going on behind the scenes (I'm an engineer) because we like to know how and when things happen.

For me, I want to know when an AR kicks off so I don't turn off the engine while the DPF is at 1200 degrees after the ECM just injected diesel fuel into the DPF so it could get hot enough to burn the soot. If that AR doesn't complete then you get to try again some miles down the road and inject even more diesel into the DPF. After a 2nd or 3rd failed completion of the AR is when you will see a notice on your dash.

 

[EddyArnold]

Is there any way to force an active regen with any of the obd apps like jscan or anything else?

 

[Overland-2021]

So Chris, I'm curious what are you using to gather this information into a spreadsheet format?

In looking at your data and the fact that your trip was mostly highway it would be unlikely that an Active Regen would be needed since the DPF temps would get high enough to passively burn off soot slowly.

This was my same experience on my recent trip that spanned nearly 800 miles 1 way (which was only 2 tanks of fuel) and my soot level hovered around 35% the whole time.

If you drive your JT 95% highway all the time it's possible you've never had an Active regen, however the average distance between DPF regens suggests you have certainly had Active regens.

However I'm not convinced those numbers are an accurate view of Active Regens, mine recently changed to 174 miles between regens ... if that were true over all the miles I've driven then that would suggest more than 60 Active regens over 10,700 miles which I know isn't true. My guess is that the computer only keeps track of the most recent "X" number or regens and then calculates the miles driven. Since my long trip back in July I have been making a lot of short trips which certainly pushes the soot level up quickly.

I think your spot on - most of my driving is long distance... and under load.
Temps consistently in the 7-800°F range should be enough for a passive burn off.
I use the OBDLink MX+ and the OBDLink software it was bundled with.
The software creates a log file that I can open as a spreadsheet.
I am sure an active regen has run... Just haven't recorded one.

 

[BEERviper]

Is there any way to force an active regen with any of the obd apps like jscan or anything else?

As far as I know, and anyone else that I've read that has a 3rd gen EcoDiesel there is no way to force an Active Regen.
The dealer has a way to do this but until someone out there cracks that code on what the dealer does to force this regen we will have to rely on the computer to determine when it happens.

 

[Sheldon]

Hello,

First regen with indication on the dash was on 19-Dec at 1479 km (= 919 miles).
Yesterday 25-Dec the 2nd regen, at 1678 km. The dash says "weiterfahren" (= continue driving), when i had to stop at a red light a notification bell sound was given by the car.

The longest trips in this week were 40 km or 25 km one way, the remaining were mostly short trips < 5 km.

My last Diesel with AdBlue system was a new Audi A5, in 3 years and 75k km it did only one regen with indication in the dash.

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