DPF Regen?

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Apr 18, 2017 | 08:37 PM

#16

wb6anp

Logistics Pro

Joined: Dec 2004

Posts: 3,541

Likes: 5

From: Weatherford Texas.

Mine just stopped at 15%, also found out that none of the forscan lite dpf gauges match the trucks.

Apr 19, 2017 | 06:47 AM

#17

Bomex1018

5th Wheeling

Joined: Feb 2017

Posts: 33

Likes: 0

Quote:

Originally Posted by wb6anp

Mine just stopped at 15%, also found out that none of the forscan lite dpf gauges match the trucks.

Quote:

Originally Posted by Bomex1018

How low does your % go? Mine seems to hit 10% and stop.

when I shut it off yesterday it was at 10% now it's at 5%

Apr 19, 2017 | 09:16 AM

#18

EpicCowlick

Post Fiend

Joined: Apr 2004

Posts: 5,158

Likes: 35

From: North of Salt Lake City

Quote:

Originally Posted by wb6anp

Mine just stopped at 15%, also found out that none of the forscan lite dpf gauges match the trucks.

This is interesting. I'm using FORScan Lite and am pretty sure the Soot % is accurate. The truck will fire off a regen when over 100%. The burnout lasts much longer on this truck than my 2011 and runs for about 30 mins, maybe more. But I have never seen the Soot % below 26%. It always shuts off a percent or two above that and the residual heat doesn't clean much more before soot starts to increase.

Another thing. On my last trip I saw exactly zero passive regeneration. With EGT's in the 700 and 800 range the soot % would just slowly climb. I'm thinking whaaaaat? What happened to my free cleanouts? It never decreases unless an active regen is going on. This is very different where I could tow with my 2011 and watch soot % drop into the negative percent range. Not happening on this truck.

And I know, I know... I don't really care what the regen is doing but

I....
JUST...
CAN'T...
LOOK...
AWAY.

It's like watching some supernatural higher power running mysterious algorithms and controlling my exhaust temps and mpgs. I definitely have not figured out this 2017. It is so different from the 2011.

Apr 19, 2017 | 10:03 AM

#19

wharrell

Tuned

Joined: Dec 2007

Posts: 354

Likes: 0

Keep in mind the PCM is programmed to force a regeneration at 500 miles if the other parameters are not met at a 500 mile interval since the last regeneration

Apr 20, 2017 | 10:46 AM

#20

ERock62

Senior User

Joined: Mar 2017

Posts: 219

Likes: 4

From: SoCal

Pretty sure I had my first regen I noticed on my drive home last night.
I usually keep my info screen on the instant mpg's. I was very low on the drive home and I noticed my avg dropped a couple points.

Apr 20, 2017 | 11:27 AM

#21

dsladdict

Senior User

Joined: Nov 2014

Posts: 141

Likes: 0

From: CT

Can anyone speak to the DPF status messages insofar as to if they were carried over from the 1st generation 6.7L. I have the 4.2" Productivity screen(sore subject) vs the 8" display. On my 2011 the message "DPF Regeneration in Progress" would show for a few seconds. I don't recall seeing that yet on my new truck. We so need an updated Coffee Table Book!

Apr 20, 2017 | 01:14 PM

#22

wb6anp

Logistics Pro

Joined: Dec 2004

Posts: 3,541

Likes: 5

From: Weatherford Texas.

Quote:

Originally Posted by EpicCowlick

I checked mine after regen, dash said 15% Forscan said 32% Ill try it again today.

Apr 20, 2017 | 03:08 PM

#23

EpicCowlick

Post Fiend

Joined: Apr 2004

Posts: 5,158

Likes: 35

From: North of Salt Lake City

Quote:

Originally Posted by wb6anp

I checked mine after regen, dash said 15% Forscan said 32% Ill try it again today.

I hadn't considered that FORScan may be translating the PID incorrectly. Being that the regens start pretty much right at 100% I figured the low end of the scale would be accurate also. I'm fine with equating 26% with 0% if it really is the same.