Successfully did a DPF regen on 2022 with 6.7 diesel. Wahoo!

[Longhorn1500]

Thank you all for the clarification.

My understanding is that when in regen, it injects fuel into the engine cylinders during the exhaust stroke, it does not inject into the exhaust system. Please correct me if I am wrong. Thank you!!

 

[06 Dodge]

Thank you all for the clarification.

My understanding is that when in regen, it injects fuel into the engine cylinders during the exhaust stroke, it does not inject into the exhaust system. Please correct me if I am wrong. Thank you!!

You are correct

 

[jejb]

Umm, that is the passive regen.

There 3 types of regen really, passive, passive once you stop too often interrupting the regen when it tells you to keep driving, and stationary.

What I consider a passive regen, and I could be wrong of course, is like when I start hauling my trailer down the highway and the DEF gauge is over zero somewhere. The gauge then goes to zero within a few miles w/o flashing either the Auto Regen on the DEF screen or the "keep driving" regen message on the EVIC.

To me, there 3 or 4 regen modes. Passive, Auto, Keep Driving and forced/stationary. Am I wrong?

 

[nlambert182]

Thank you all for the clarification.

My understanding is that when in regen, it injects fuel into the engine cylinders during the exhaust stroke, it does not inject into the exhaust system. Please correct me if I am wrong. Thank you!!

It injects into the cylinders during the exhaust stroke and pushes it into the NoX canister.

 

[nlambert182]

What I consider a passive regen, and I could be wrong of course, is like when I start hauling my trailer down the highway and the DEF gauge is over zero somewhere. The gauge then goes to zero within a few miles w/o flashing either the Auto Regen on the DEF screen or the "keep driving" regen message on the EVIC.

To me, there 3 or 4 regen modes. Passive, Auto, Keep Driving and forced/stationary. Am I wrong?

There are truly only 2; passive and active.

Passive occurs naturally when driving when exhaust temps gets hot enough on their own. Active is when the computer sees a need and raises the exhaust temps to actively burn off soot.

 

[jejb]

There are truly only 2; passive and active.

Passive occurs naturally when driving when exhaust temps gets hot enough on their own. Active is when the computer sees a need and raises the exhaust temps to actively burn off soot.

Okay, so what is the difference between the Auto one you only see only if you're watching the DEF gauge and the Keep Driving one that displays on the EVIC. Are you saying they are the same?

 

[nlambert182]

Yes, they are both active regens, but triggered by different events.

The auto one is based on time. Every 24 hrs of engine operation triggers an active event.
The keep driving one is based on DPF full %. >45% full will also trigger an active event.

Passive regens won't tell you they're happening.

 

[jejb]

Yes, they are both active regens, but triggered by different events.

The auto one is based on time. Every 24 hrs of engine operation triggers an active event.
The keep driving one is based on DPF full %. >45% full will also trigger an active event.

Passive regens won't tell you they're happening.

Not trying to be argumentative, just trying to definitively figure this out. If they are both the same, "active events", why does one give the "keep driving" message and the other does not?

 

[nlambert182]

No, I don't think you're trying to be....

They're not identical events but active means the computer received some trigger that commanded it versus it naturally occurring through driving habits.

One is based on time and doesn't care how full the filter is. Timer kicks and the computer starts its thing.
One is based on the percent full of the filter and doesn't start until the computer determines that the filter is too full and starts its thing.

 

[jejb]

No, I don't think you're trying to be....

They're not identical events but active means the computer received some trigger that commanded it versus it naturally occurring through driving habits.

One is based on time and doesn't care how full the filter is. Timer kicks and the computer starts its thing.
One is based on the percent full of the filter and doesn't start until the computer determines that the filter is too full and starts its thing.

I appreciate the explanation. But it stills seems odd one kicks out the "keep driving" message and the other does not. Oh well, I guess it's just semantics anyway.

 

[darrellthomas]

“AlfaOBD. Cost $49”

Important to note: the AlphaOBD offered in the Apple Store is a scam. It is not associated with the REAL alphaOBD. There is exactly (1) user review in the Apple Store that says as much. The dude got snaked for $49- never to be seen again.

The REAL alphaOBD also tries to warn you on their website as well. (alphaOBD.com).

Ya’ll be safe out there.

 

[darrellthomas]

"You need to download two apps onto your tablet or whatever you are using.
OBDLink. It was free. I did register with my email.
AlfaOBD. Cost $49."

Be careful of the AlfaOBD app in the Apple store (if you do Apple). It's fake, and is not related to the REAL AlfaOBD. The alfaobd.com website warns you about this. Hope I saved someone $49!

 

[OLEJOE]

I used the VLinker MC+ dongle with the JScan app and the KaodTech bypass cable. All of this works with my Apple devices. The KaodTech is easier to install since it connects to the CanBus modules that are mounted under the dash on the left side above the parking brake. Very easy to install and remove. I just remove the little panel under the one the headlight switch is in so I can see where the connections go. I also dropped the spare tire just in case.
I also adjusted the TPMS threshold so the low tire warning would go off when not towing and not running 60 lbs of air in the rear tires.