Ecodiesel specific PID's? - Page 6 - Jeep Garage - Jeep Forum

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  #61  
Old 04-07-2015, 06:02 PM
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Re: Ecodiesel specific PID's?

The XGauge codes I am using (PIDs) I use in my Scanguage2 report independent values for DPF and CAT. They are not always 40C apart as reported here. You guys may want to check your conversion to Custom PID. Torque Pro should show the same.

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  #62  
Old 06-12-2015, 04:06 AM
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Quote:
Originally Posted by kag49601 View Post
I did get the folks at scan gauge to send me a test unit (scan gauge 2)for the 2015 jeep/Eco diesel. They are sending along a data logger as well to verify if the PID's that were programmed function as intended. This is what "special PIDs" I am getting with the unit:

STM - Percentage of Soot Mass (%)

FRP - Fuel Rail Pressure (1000's of PSI)

DSR - Distance since last Regeneration (Miles)

ACP - VGT Actuatior Commanded Postiion (%)

IDE - Inlet DPF Exhaust Gas Temperature Sensor (Degrees Fahrenheit)

TNR - Total Number of Started Regenerations (Count)

MAT - Intake Manifold Air Temperature (Degrees Fahrenheit)

MTR - Mean Temperature Value of the Last Regenerations (Degrees Fahrenheit)

OPC - Outlet PreCat Exhaust Gas Temperature Sensor (Degrees Fahrenehit)

RGN - Regeneration Active (On/Off)

C11 - Catalyst Temperature (Degrees Fahrenheit)

EOT - Engine Oil Temperature

EG1 - Exhaust Gas Temperature 1 (Degrees Fahrenheit)

EG2 - Exhaust Gas Temperature 2 (Degrees Fahrenheit)

EG3 - Exhaust Gas Temperature 3 (Degrees Fahrenheit)

I'll let you all know how they work after receiving the unit on Saturday.
Any updates ??
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  #63  
Old 06-12-2015, 04:42 AM
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Quote:
Originally Posted by ExcursionDiesel View Post
The XGauge codes I am using (PIDs) I use in my Scanguage2 report independent values for DPF and CAT. They are not always 40C apart as reported here. You guys may want to check your conversion to Custom PID. Torque Pro should show the same.
If your DPF gauge is based on the TXD ending in 013C, then it's the Cat Bank 1, Sensor 1 temperature sensor value, per the J1979-DA spec. There was intermittent minor variance between the 013C txd value and the Torque Cat Bank1 PID, but it was due to beat frequency in polling the system and always snapped back to being the same offset (40 C) within a second—just as one would expect from a beat frequency polling issue. Regardless, it doesn't matter what you multiply, divide, or add to that ScanGauge TXD... ultimately it's just Cat Bank 1, S1 with varying degrees of incorrectly-reported output.

XGauge TXDs ending in 0178 are EGT Bank 1, Sensors 1 through 4, again per J1979-DA spec.
One would expect the RXDs for EGT B1S1 to be 0810, EGT B1S2 to be 1810, B1S3 to be 2810, and B1S4 to be 3810. Using an RXD of 2010 would output a synthetic "reading" constructed by combining the lower byte of the sensor 2 value with the upper byte of the sensor 3 value (ie. producing garbage/nonsense output). To add to the madness, the lower byte of the S2 reading would be considered the upper byte of this value while the upper byte of the S3 reading would be considered the lower byte (a virtual endianness issue).

tl;dr: No one should use the XGauge with TXD: 07DF0178 / RXD: 2010, because it's nothing.
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  #64  
Old 07-04-2015, 12:02 AM
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Re: Ecodiesel specific PID's?

Hi,

Been lurking here for a bit. Thanks to all who have contributed to this thread. Can anyone provide formulas for displaying temps (EGT, CAT, and DPF) in Farenheight? Thanks in advance.
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  #65  
Old 07-06-2015, 11:37 PM
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Quote:
Originally Posted by Deezl View Post
Can anyone provide formulas for displaying temps (EGT, CAT, and DPF) in Farenheight?
Since you didn't give any context, I'm going to presume you're using the Torque app on Android. Go into Settings, choose Units, then scroll down and unselect "use Celsius". Done.

Also, I just wanted to reiterate that we don't have any known DPF temp PID.
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  #66  
Old 07-07-2015, 12:40 AM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Roadkill View Post
Since you didn't give any context, I'm going to presume you're using the Torque app on Android. Go into Settings, choose Units, then scroll down and unselect "use Celsius". Done.

Also, I just wanted to reiterate that we don't have any known DPF temp PID.
Thank you, Roadkill!

Don't know if these are useful, or not, but:

PID: 013C
Long Name: DPF Temperature (Custom)
Short Name: DPF Temp
Minimum value: 0
Maximum value: 725
Scale Factor: x1
Unit Type: C
Equation: ((A*256)+B)/10

PID: 016d
Long Name: Fuel Rail Pressure EcoD
Short Name: Rail P
Minimum value: 0
Maximum value: 655350
Scale Factor: 1x
Unit Type: kPa
Equation: ((D*256)+E)*10

PID: 016d
Long Name: Fuel Rail Temp EcoD
Short Name: Rail T
Minimum value: -40
Maximum value: 215
Scale Factor: 1x
Unit Type: C
Equation: F-40

PID: 016f
Long Name: Turbo Inlet Pressure EcoD
Short Name: TURB IN P
Minimum value: 0
Maximum value: 255
Scale Factor: 1x
Unit Type: kPa
Equation: B

PID: 0171
Long Name: Variable Geometry Turbo Position EcoD
Short Name: VGT Pos
Minimum value: 0
Maximum value: 100
Scale Factor: 1x
Unit Type: %
Equation: (C*100)/255

PID: 0173
Long Name: Exhaust Pressure EcoD
Short Name: EXST P
Minimum value: 0
Maximum value: 655.35
Scale Factor: 1x
Unit Type: kPa
Equation: ((B*256)+C)/100

PID: 0177
Long Name: Charge Air Cooler Temp EcoD
Short Name: CAC T
Minimum value: -40
Maximum value: 215
Scale Factor: 1x
Unit Type: C
Equation: B-40

PID: 0178
Long Name: Exhaust Gas Temp 2 EcoD
Short Name: EGT2
Minimum value: -40
Maximum value: 6513.5
Scale Factor: 1x
Unit Type: C
Equation: (((D*256)+E)/10)-40

PID: 0178
Long Name: Exhaust Gas Temp 3 EcoD
Short Name: EGT3
Minimum value: -40
Maximum value: 6513.5
Scale Factor: 1x
Unit Type: C
Equation: (((F*256)+G)/10)-40

PID: 017a
Long Name: DPF Delta Pressure EcoD
Short Name: DPF Delta
Minimum value: -327.68
Maximum value: 327.67
Scale Factor: 1x
Unit Type: kPa
Equation: ((signed(B)*256)+C))/100

PID: 018B
Long Name: DPF Capacity
Short Name: DPF %
Minimum value: 0
Maximum value: 100
Scale Factor: 1x
Unit Type: %
Equation: (C*100)/255
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  #67  
Old 07-07-2015, 10:15 AM
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Re: Ecodiesel specific PID's?

Do these same custom PIDs work with the fusion app? I entered the DPF%full one, and is stays at 100%. Have only about 60 miles since I added it, but if it is really at 100% I would have expected a regen by now.
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  #68  
Old 07-07-2015, 01:21 PM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by MyWay1 View Post
Do these same custom PIDs work with the fusion app? I entered the DPF%full one, and is stays at 100%. Have only about 60 miles since I added it, but if it is really at 100% I would have expected a regen by now.
The DPF will stay at 100% until the first regen occurs, then it will drop to ~9.4%, and increase as normal, usually to around 70%, then another regen will occur.
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  #69  
Old 07-07-2015, 02:40 PM
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Quote:
Originally Posted by Deezl View Post
The DPF will stay at 100% until the first regen occurs, then it will drop to ~9.4%, and increase as normal, usually to around 70%, then another regen will occur.
I have seen the DPF soot stay at 100% for approximately 300 continuous miles of nonstop highway driving before it elected to regen. Other times it has hung out at 100% for 75+ miles of nonstop highway driving. I have never seen any alerts on EVIC regarding regens... that means my Jeep is happy with reporting a 100% full DPF.

Upshot: no one should fret about their DPF unless their EVIC is telling them they need to continue driving.
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  #70  
Old 07-07-2015, 02:47 PM
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BTW, welcome to the forum, Deezl!

Quote:
Originally Posted by Deezl View Post
Don't know if these are useful, or not, but:

PID: 013C
PID 013C is catalyst temperature bank 1, sensor 1. If that happens to be the DPF's temp then I guess the Jeep doesn't have a catalyst temp PID. I hesitate to refer to the Cat Bank 1 Sensor 1 PID as "DPF temp" though.

BTW, this PID is built into torque... "catalyst temperature bank 1, sensor 1", so there's no need to code a custom PID for it.
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  #71  
Old 07-07-2015, 07:57 PM
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Re: Ecodiesel specific PID's?

Post deleted, because I was a jerk... Sorry. But I'll leave the screenshot anyways.
Attached Images
File Type: jpg TorquePro App Screenshot 7-7-2015.jpg (259.0 KB, 40 views)
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  #72  
Old 07-07-2015, 08:08 PM
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Re: Ecodiesel specific PID's?

Quote:
Originally Posted by Deezl View Post
Don't know where you get your PID info from but, as much as you want to be correct, you are NOT, at least in my experience. My DPF and CAT1B1S1 temps are different, although they are close.
Whoa!!! Relax, there is an explanation about these temp sensor measurements a few pages back.

edit: By using a custom PID and this equation ((A*256)+B)/10 all you are doing is displaying the same sensor reading twice, but one with the -40 value and the other without. ((A*256)+B)*0.1-40
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