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  #13  
Old 03-06-2015, 12:34 AM
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Hey, thanks for cross-posting this here, Steve1307. Your DPF % capacity PID is very useful for monitoring the regens. I will let you know if that DPF regen mode PID happens to work on the NA model, but I'm not holding my breath given it doesn't work on your export models.

Quote:
Originally Posted by Steve1307 View Post
Our MY14 WK2 has the trans temp on the EVIC so no need to chase that particular one.
Yes, we also have trans temp in EVIC in the NA model, but having the reading available in EVIC is not a very strong argument not to need that PID... we also have speedo, oil temp, rpm, etc, in the dash but people want to monitor that via Torque as well.

I'm logging all these other PIDs, but I can't log trans temp because none of the custom PIDs for Chrysler/Dodge/Jeep available in Torque are correct. They return values, but they are insanely incorrect. Maybe we'll figure it out someday.

Has anyone found a ScanGuage XGauge code for our transmission that matches EVIC readings? If so, I'll transform it into a Torque PID.

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  #14  
Old 03-06-2015, 12:43 AM
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Re: Ecodiesel specific PID's?

Also, for we NA EcoDiesel owners, I think a lot of us have been missing out on the DPF % capacity PID that our Antipodean friends have been using to track their DPF Failgen issues. Thanks goes to Steve1307.

This Torque PID works well on NA EcoDiesels.

PID: 018B
Long Name: DPF Capacity
Short Name: DPF %
Minimum value: 0
Maximum value: 100
Scale Factor: 1x
Unit Type: %
Equation: (C*100)/255
A few notes: apparently the reading does *not* drop during a regen, because the system stops measuring the pressure diff while the regen is in process. Instead, what will happen is the value will instantaneously change the moment the regen is complete. For example, mine dropped from 100% to 9.4% in one second after not budging from 100% during the 12.5 minutes of the regen (regen mode as determined by the characteristic CAT/EGR/DPF temp excursion). Also, for those of you with ScanGauges, you can probably convert this to an XGauge code if you want.

I'm experimenting to see if some of the other PIDs will give engine hours, turbo actual boost, etc.
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  #15  
Old 03-08-2015, 03:33 AM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Roadkill View Post
Also, for we NA EcoDiesel owners, I think a lot of us have been missing out on the DPF % capacity PID that our Antipodean friends have been using to track their DPF Failgen issues. Thanks goes to Steve1307.

This Torque PID works well on NA EcoDiesels.

PID: 018B
Long Name: DPF Capacity
Short Name: DPF %
Minimum value: 0
Maximum value: 100
Scale Factor: 1x
Unit Type: %
Equation: (C*100)/255
A few notes: apparently the reading does *not* drop during a regen, because the system stops measuring the pressure diff while the regen is in process. Instead, what will happen is the value will instantaneously change the moment the regen is complete. For example, mine dropped from 100% to 9.4% in one second after not budging from 100% during the 12.5 minutes of the regen (regen mode as determined by the characteristic CAT/EGR/DPF temp excursion). Also, for those of you with ScanGauges, you can probably convert this to an XGauge code if you want.

I'm experimenting to see if some of the other PIDs will give engine hours, turbo actual boost, etc.
Thanks for this summary!

Any luck with actual boost?
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  #16  
Old 03-08-2015, 04:23 AM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by ScottiJT View Post
Any luck with actual boost?
It seemed to return data, but I haven't analyzed it to see if it made sense. Furthermore, the VGT geometry reading seemed sane, but again, haven't analyzed it. Not sure about the engine run time.

As for the DPF Temp PID (the temp, not the capacity), I'm uncertain whether that is truly an independent reading from the CAT temp. It's very suspicious that it always seems to be 40.00 C higher than the reported CAT temp. I want to point out that the DPF Temp is just a translated XGauge code from ScanGauge (i.e. who knows how they came up with it), and not something from Steve1307's excellent resources.

It seems possible that the vehicle could just be reporting a calculated temperature for either CAT or DPF using a single thermometer reading. It's also possible that the ScanGauge code is based on a flawed premise/equation.

I'll continue to monitor, but if anyone else has tried the DPF temp in Torque, what have your experiences been? Is it exactly 40.00 C higher than the Cat1B1 temp 95% of the time, and if it differs, does it only differ for one reading before snapping back to the 40.00 C delta as mine does?
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  #17  
Old 03-22-2015, 06:42 PM
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Re: Ecodiesel specific PID's?

Another Torque custom PID:

Here's the definitive method to determine whether your EcoDiesel is in regen mode or not.

PID: 018B
Long Name: DPF Regen Mode
Short Name: DPF Mode
Minimum value: 0
Maximum value: 3
Scale Factor: 1x
Unit Type: mode
Equation: ({B:0}<1)+{B:1}
Note that those green things that look like curly braces in the equation are, in fact, curly braces and not parentheses. I confirmed this works today... witnessed the mode gauge change during regen.

Gauge readings: 0.0 is normal operation; 3.0 is active regen.
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  #18  
Old 03-22-2015, 08:15 PM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Roadkill View Post
Another Torque custom PID:

Here's the definitive method to determine whether your EcoDiesel is in regen mode or not.

PID: 018B
Long Name: DPF Regen Mode
Short Name: DPF Mode
Minimum value: 0
Maximum value: 3
Scale Factor: 1x
Unit Type: mode
Equation: ({B:0}<1)+{B:1}
Note that those green things that look like curly braces in the equation are, in fact, curly braces and not parentheses. I confirmed this works today... witnessed the mode gauge change during regen.

Gauge readings: 0.0 is normal operation; 3.0 is active regen.
Nice find! How did you work this one out??
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  #19  
Old 03-22-2015, 08:51 PM
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Quote:
Originally Posted by ScottiJT View Post

Nice find! How did you work this one out??
I read the copy of the ISO spec that Steve1307 provided and translated the relevant data field into a Torque PID. The reason the output is weird in Torque is that we are reading the ECU's direct status of DPF regen state. Torque really only allows numeric output so I couldn't have it say "normal", "active regen" or any of the other meanings of the codes. We just have to deal with the numbers. Legal values are 0, 1, 2, or 3.

I'd be surprised if anyone ever sees anything but 0 or 3, but if anyone ever sees a 2, please let us all know.
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  #20  
Old 03-23-2015, 01:27 AM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Roadkill View Post
Another Torque custom PID:

Here's the definitive method to determine whether your EcoDiesel is in regen mode or not.

PID: 018B
Long Name: DPF Regen Mode
Short Name: DPF Mode
Minimum value: 0
Maximum value: 3
Scale Factor: 1x
Unit Type: mode
Equation: ({B:0}<1)+{B:1}
Note that those green things that look like curly braces in the equation are, in fact, curly braces and not parentheses. I confirmed this works today... witnessed the mode gauge change during regen.

Gauge readings: 0.0 is normal operation; 3.0 is active regen.

Hey Roadkill or anyone else it there, how can we take this and translate it into the Scanguage X-guage format and fields? Is there a simple translation or can you point to a document or URL?

There's lots of great info here, I'm also interested in the DPF percentage full in post #14 here and others. Any help appreciated.

Thanks- Eric


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  #21  
Old 03-23-2015, 02:09 AM
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Quote:
Originally Posted by E_Holst View Post
[...]how can we take this and translate it into the Scanguage X-guage format and fields? Is there a simple translation or can you point to a document or URL?
I don't have a ScanGauge, but the XGauge coding manual appears to have all the information you or someone else would need to translate these Torque PIDs.

Obviously, Torque is much more powerful and flexible in terms of what can be accomplished with custom PIDs (equations, cross-references to other PIDs, etc). Fortunately, the PIDs in this thread so far are simple and are therefore within the capabilities of the ScanGauge. Consequently, you or someone else should be able to translate them and share your results.
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  #22  
Old 03-30-2015, 03:52 PM
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Re: Ecodiesel specific PID's?

The ScanGauge XGauge code for DPF temp seems to be pointless, incorrect, or both, so therefore the DPF temp PID that I translated from it has the same problem. This value is always 40 C higher than the Cat1B1 temp PID built into Torque, so I recommend users simply rely on that instead. Sorry for the confusion, everyone.

The good news is that the DPF regen mode PID was also confirmed as working on wraab's Jeep today. Cool.
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  #23  
Old 03-30-2015, 04:07 PM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Roadkill View Post
Sure, I use that too, but I translated the ScanGauge DPF temp xgauge/whatever thing to a Torque custom PID in order to get the real DPF temp value. Transforming these isn't hard, it's just math.

PID: 013C
Long Name: DPF Temperature (Custom PID)
Short Name: DPF Temp
Minimum value: 0
Maximum value: 725
Scale Factor: 1x
Unit Type: C
Equation: ((A*256)+B)/10
Note that you can't use "DPF Temperature" for the long name or Torque will barf due to the name collision. You could use basically anything else for the long name, though... call it "George" if you want.

I have been using this for a few months and the readings I get are consistent with the CAT temp and so forth. Now, if only someone could get a fuel level, engine hours, or transmission temp PID working...
Quote:
Originally Posted by Roadkill View Post
The ScanGauge XGauge code for DPF temp seems to be pointless, incorrect, or both, so therefore the DPF temp PID that I translated from it has the same problem. This value is always 40 C higher than the Cat1B1 temp PID built into Torque, so I recommend users simply rely on that instead. Sorry for the confusion, everyone.

The good news is that the DPF regen mode PID was also confirmed as working on wraab's Jeep today. Cool.
Ok, from what I can tell here, you're reading 0x013C for the DPF temp... which *is* Cat1B1 per J1979-DA (see Steve1307's attached doc on the first page). The only difference between your formulas? *The spec calls for subtracting 40 to get the final value*. So yeah, it's always going to be 40C more because it's the same data!

Back to the hunt for an actual DPF Temp...
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  #24  
Old 03-30-2015, 04:11 PM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Ampt View Post
*The spec calls for subtracting 40 to get the final value*. So yeah, it's always going to be 40C less because it's the same data!
Yeah. I translated it about six months ago from a ScanGauge XGauge code that obviously did not include said subtraction. We didn't have the ISO document then.
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