PID Address for IAT2?

[TheLion]

Anyone know the PID address for charge air temp on 2016 and newer EB? I fiddled with this a while back with the OBDIILink MX but was never able to get IAT2 / charge air temp. I got everything else to work but none of the PID's I was given worked.

Just wondering if anyone with a 2016 or newer EB has the PID address for IAT2 and I can just do a custom PID in Torque Pro. Thanks.

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[solodogg]

Is it not the same as the 2015?

PID: 2203ca
Equation: (A-40)*1.8+32

 

[TheLion]

Is it not the same as the 2015?

PID: 2203ca
Equation: (A-40)*1.8+32

One would think so, but I could never get data out of it. I do have a new phone and I know torque has been updated since the last time I fiddled with it about a year ago so I'll give it another try and see if it works this time (hopefully).

 

[Texstang]

I have a 2016 and an MX running Torque Pro.

I'm not an expert on the details behind the MSCAN/HSCAN buses, nor have I actually used forscan to verify the data or results, but I found some useful information on an Ecoboost forum, where a user did a lot of work interpreting PIDs for the Taurus SHO.

From what I understand, there are 3 temperature sensors on the intake system (at least applicable for the SHO or other Ecoboost vehicles):

1. IAT1 - the sensor directly downstream from the filter housing
2. Charge Air Cooler (CAC) - the sensor between the intercooler outlet and throttle body
3. IAT2 - the sensor on the intake manifold (I've also seen this referred to as the "manifold charge temperature")

IAT1 works fine in my car. The PID for the CAC temp did not. IAT2 works fine, and is what I use as a measure of post-intercooler temperatures. I use the exact same inputs as solodogg posted including the Fahrenheit conversion and it works fine.

For reference, here's what I used for all three:

IAT1 --- PID 22F40F --- ((A/2)-40)*1.8+32
CAC --- PID 220461 --- (((Signed(A)*256)+B)/64)*1.8+32
IAT2 --- PID 2203CA --- (A-40)*1.8+32

 

[jbailer]

I have a 2016 and an MX running Torque Pro.

I'm not an expert on the details behind the MSCAN/HSCAN buses, nor have I actually used forscan to verify the data or results, but I found some useful information on an Ecoboost forum, where a user did a lot of work interpreting PIDs for the Taurus SHO.

From what I understand, there are 3 temperature sensors on the intake system (at least applicable for the SHO or other Ecoboost vehicles):

1. IAT1 - the sensor directly downstream from the filter housing
2. Charge Air Cooler (CAC) - the sensor between the intercooler outlet and throttle body
3. IAT2 - the sensor on the intake manifold (I've also seen this referred to as the "manifold charge temperature")

IAT1 works fine in my car. The PID for the CAC temp did not. IAT2 works fine, and is what I use as a measure of post-intercooler temperatures. I use the exact same inputs as solodogg posted including the Fahrenheit conversion and it works fine.

For reference, here's what I used for all three:

IAT1 --- PID 22F40F --- ((A/2)-40)*1.8+32
CAC --- PID 220461 --- (((Signed(A)*256)+B)/64)*1.8+32
IAT2 --- PID 2203CA --- (A-40)*1.8+32

I've never gotten CAC to work either and would prefer to use that to measure performance of the FMIC. Then I got over it and just monitor IAT2 as that's what I'm really concerned about anyways. It would be nice to get CAC working though just to see how much of that temp is heat soak after the FMIC though. I've found it very interesting to monitor the ambient, IAT1 and IAT2 and watch the temps under different circumstances.

 

[TheLion]

CAC would give you the charge air temp right out of the FMIC, but in reality the IAT2 gives you the real picture. It shows not just FMIC efficiency, but charge pipe heating / efficiency as well.

If the cooled air were to just sit in the charge pipe it would quickly heat up to ambient. Any eddy currents due to couplers etc will contribute to pressure loss and heating. I think IAT2 is probably the most useful in a practical sense and I'm glad I got it working! It only took buying a new phone and a new version of Torque Pro to come out for me to get it work....

 

[Texstang]

I've never gotten CAC to work either and would prefer to use that to measure performance of the FMIC. Then I got over it and just monitor IAT2 as that's what I'm really concerned about anyways. It would be nice to get CAC working though just to see how much of that temp is heat soak after the FMIC though. I've found it very interesting to monitor the ambient, IAT1 and IAT2 and watch the temps under different circumstances.

I do the same thing monitoring the ambient, intake, and manifold charge temps. Would you expect to see a significant difference from the CAC and the IAT2 temps? I would imagine that they would be pretty similar, within ~5 degrees at the most, but I'm not sure.

I have about a month of datalogs of my daily commute in an Excel workbook formatted into a pivot chart. I just installed a Mishimoto intercooler/charge pipe combo and once I get more data I plan on posting my datalogs here with some observations.

I'm logging the following:

Boost/Vacuum
Speed
RPM
Throttle Position
Ambient Temp
Intake Temp
Manifold Temp
Coolant Temp
Grille shutter position
Coolant Temp
Octane Adjust Ratio

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