Could you test the questionable pids
and post the raw hex responses?

While connected to your vehicle, pressing
the TEST button when editing the pid of
interest, a raw hex response will be returned.

This hex response is then decoded based upon
the formula used. If there is a problem with
the pid for your vehicle the hex response should
show it.

Since these pids have worked for others I would
be curious what the raw responses are… to
manually decode the values returned by your
vehicle.

Successful responses should begin with
62… where unsuccessful 7F…

@dlturner00 I don’t know – but don’t think a tune would effect a parameter ‘output’ from the PCM.

We may be able to help each other on EOT. I have invested endless hours trying to sort out identify PIDs and develop formulas for ALL the PIDs that respond to Torque Scan on my 2004 F150 5.4L Triton. The most frustrating aspect I’ve encountered is how ‘helter / skelter/ the OBDII PID assignments seem to be outside the ‘FEW’ standard federally mandated ones.

The effort lead me down many rabbit trails / dead-end paths – because of differences among various models within Ford F150 – F250 – F350 lineup. I understand diesel / gas necessarily would be different in areas – but assignments seem more scrambled than necessary. Some models use A/D counts, some report Voltage, some actually convert the data into Degrees. Unfortunately many times the same PID No will report different UNITs on different lines. DAMN! And the manufacturer / scanner developers try to keep the details very close to their chest.

The three PIDs in Torque extended PIDs FOR FICM do not respond on mine vehicle, so I can be no help there. However I have found (among Ranger / EcoBoost / F150 / Powerstroke, ect) about three PIDs for Engine Oil Temp. – and one related to limp mode.

PID 1310 (the one in the Ford Extended List) likewise does NOT work on my 5.4L Triton. You might try header “TCM” (temperature control module) and see if that works. I do not remember if I every tried that before deleting it.

PId 2101 – doesn’t work on mine either. I think it is for EcoBoost. It seems to be in the range of some others for EcoBoost, but OFTEN that doesn’t mean anything. You might key it in and watch it on “TEST” to see if it responds.

PID 16AF DOES produce Engine Oil Temperature “voltage” on my gasser. It seems to be accurate as to the following “chart” – which is a screwy ‘curve’ and I do not have a decent formula that does a very accurate job of tracking the table. The formula I am using is ((A*256)+B)/16384. As with other sensors (ie: CHT), the voltage is inverse to temperature.

I would be interested to know if this PID is applicable to your Powerstroke, and what the RAW data reads, or if it follows the chart.

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Thanks Capp777

I hadn’t, just did. But I’d be lying MAO if I told you I understood them at first read. I’ll go off into the study mode. lol

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@Capp777 I created a test EOT gauge and put the poly formula (for IAT poly) in:
(-0.00000000000196*(((A*256)+B)*((A*256)+B)*((A*256)+B)))+(0.000000196*(((A*256)+B)*((A*256)+B)))+(-0.00774*((A*256)+B))+144.0

and drove the truck a little. The formula results in Degrees ºF instead of ºC (perhaps ??? because I have Torque set up set to “F” ???). I sorta’ doubt that. Don’t know how Torque would know that THAT PID was a temp one when I name it “TEST-EOT” – but deg F is what I want anyway. Also, it appears (for the moment) to be DEAD ON at 200-202 degrees (apparently normal operating EOT judging from my EOT voltage gauge), but it progressively more above and below that. I will check it in AM after cold soak.

I am inputting the above TABLE into Excel where I can create a column for the formula and see if it tracks. Will keep you posted.

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@Capp777

I’ve tried several of the formulas – with varying degree of success (except to further confirm the lack of standardization by the Ford engineers). I’m not completely sure we can trust the table I posted above – though it is from my 1500 page FULL FORD FACTCTORY SERVICE MANUAL for 2004-2006 F150. Ironically, even though TFT is not mentioned in heading of that table – the formula in your link for 7.3 TFT Poly is the closest to EOT on my engine – even though TFT is NOT listed. The EOT sensor is actually more similar to the EOT sensor (in appearance) than the IAT on my truck is (which is an integral component of the MAF sensor). AND, though listed in the Table – my truck has NO ECT sensor to produce a voltage output. The PCM calculates ECT from the Cyl Head Temp sensor and outputs ECT (very accurately) on PID 105 – header TCM.

No surprise. The Table also makes a big point of A/D counts, and the RAW OBDII data from EOT_V PID (16AF) is not based on 1024 counts (as lots of documentation I’ve found online indicates). (Divide Raw data by 64 matches A/D counts in the Table. Divide Raw Data by 13107 matches Volts in the table exactly. So I inputted the above Table values PLUS RAW data {essentially Volts * 13107 = (A*256+B)} in an Excel Spreadsheet and plotted the table using the 7.3 TFT Poly formula from the link you provided. If anyone is interested in that small spreadsheet, I put a copy of it here: (without Macros / virus’) http://www.devoll.com/public/EOT_Temperature_Table_-_formula_check.xlsx

It ‘almost’ gives tolerable readings except at the high end where you need more accuracy – as you have aptly stated. I’m not really high powered mathematician, but it seems this might give me (or hopefully one of you smart guys) enough data to polish up a formula that tracks the table better. My IR thermometer does confirm the ºF temperatures in the table as compared to the Diagnostic Reference Values chart in my service manual. (I sorta’ trust it – voltage readings seem fine).

Sorry. I didn’t put much effort into legends or description.

The blue line (at the bottom) is Volts directly from the table, 4.89 down to .14 volts. Though small in scale in this representation, it plots a very nice “s” curve from left to right if it is plotted alone – on a 5 volt full scale.

The Red line is the Temperature from the chart – calculated by Ford’s formula for their table – which we would like to match by the formula for the green line (& torques gauge).

Quote from Capp777 on January 23, 2017

Could you test the questionable pids
and post the raw hex responses?

Ok, I’m back. Working 12 hr days doesn’t leave much time for anything else. Here are some test results.

VBatt
Command 221172
Response 7E80762110001004005

FICM Main Power
Command 2209do
Response 7E8056209000555

FICM Vehicle Power
Commmand 2209ce
Response 7E8056209000550

FICM Sync Formula {A:1}
Command 2209cd
Response 7E80562090005BE

FICM Logic Power
Command 2209cf
Response 7E8056209000550

EOT
Command 221310
Response NO DATA

HPOP
Command 221446
Response NO DATA

ICP Voltage Formula (((A*256)+B)*(72/10000))/100
Command 2216cd
Response 7E80462160000

VGT
Command 22096cd
Response 7E80562090005A0

All are using default formulas in the app except ICP V and FICM Sync, which I added. Hoping for some help. I do understand the formulas and the hex format. I have some digital background. The FICM formulas appear to be working but returning a different value than expected. HPOP and EOT don’t appear to be working at all.

FICM Main should be 48 volts.
Scale is x1

Thanks for the effort Capp777

The second formula:

(-0.00000000000227*(((A*256)+B)*((A*256)+B)*((A*256)+B)))+(0.00000025*(((A*256)+B)*((A*256)+B)))+(-0.0113*((A*256)+B))+273.3

exhibits the same characteristic as the Original 7.3 TFT Poly formula – plotted above. Actually a little worse at the ends.

I keyed the formula into the little spreadsheet I have created http://www.devoll.com/public/EOT_Temperature_Table_-_formula_check.xlsx and it plots as:

If I play with this formula in the spreadsheet, (along with getting a little smarter) I think I can come up with a formula that tracks the Red Line (plotting Fords Temperatures from the Service Manual Table).

*I should note here, for the Powerstroke guys* I am working with a 5.4 Triton gas. However, this table may have some application to some of the Powerstroke temperature sensors. I have verified my research papers and the PIDS that are being discussed in this thread do match documents I have found and added to my database – although they are not for my vehicle.

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