I have created a “Psuedo” PID (with Mode/PID field blank) that is saved and displays in the custom ‘Manage Extra PIDs’ selection, and in the ADD – ‘select PID’ scroll screen. I can ADD a gauge to dashboards for it. But the formula result DOES NOT register on the created gauge. I can even long tap on the gauge, select >Display Configuration, >Jump to Pid Editor and get to the PSUEDO PID as normal. The TEST button displays the calculations and observe the formula produce a meaningful result.
BUT the gauge on the dashboard displays NOTHING, No dynamic reading, no Min/Max — NOTHING.

It is as though the formula Parser ‘doesn’t know’ where the gauge is located ???? Any Ideas for a fix?

EDIT: Version is 1.10.114 running on Samsung S9+, Android 10
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As always, Greatly appreciated @Capp777.

Vehicle: 2004 Ford F150 Lariat 2wd Auto, 5.4L V8
Problem: The PID from the FORD SET, “Volumetric Efficiency (Calculated)” does not function (Reads ZERO). I cannot get to its formula or via editor. Also – Absolute Load (which I “THINK” is essentially the same thing, does ot function (Reads ZERO).

Using everything I know, (which you can easily scribe on the back of a 3 cent postage stamp), PLUS lots of smarts from ….

https://x-engineer.org/automotive-engineering/internal-combustion-engines/performance/calculate-volumetric-efficiency/ …

I added a custom PID as follows:

Mode/PID ‘blank’
Long Name _Volumetric Efficiency ……
…………..(I use a leading underscore to set apart ALL “MY” custom PIDs and sort ahead of standard ones.)
Short Name _Vol-Eff
Min 0.0
Max 100
Scale Factor 1
Unit Type %
Equation ((Val{Mass Air Flow Rate}/1000}^3/((Val{Barometric Pressure})*0.0338639*2))/(((Val{Barometric Pressure})*0.0338639/286.9)*((Val{Intake Air Temperature})+273.15)*(0.054))^3))*((Val{Engine RPM}/60)*2)

……………. (Equation Not perfected yet, though produces an ‘in-the ballpark’ result
……………. in the range (17.xxx at idle – to MUCH TOO HIGH greater than 100%
……………. at elevated throttle) in the TEST screen. But VERY difficult
……………. to work with without a visual analogue gauge to see results.
…………….This is not the fundamental problem though, and has obviously been edited many times.

Header Auto
Diag Start ‘blank’
Diag Start ‘blank’
Remember equation ‘blank’

The RESULT: The formula finds each of the PIDs {specified by long name} and as observed in TEST screen calculates the inputs down to a result that appears — semi reasonable. But ANY GAUGE TYPE that I have ‘linked’ to the PSUEDO PID displays ZERO all the time. Even modifying the formula changes the TEST screen result – still the Gauge on the dashboard (deleted and recreated several times) continues to display ZERO.

It would be most helpful in refining my formula to observe the result on an analogue gauge instead of the jumping around complicated screen in TEST mode. It is as though the formula parser formats and deposits the result in the wrong memory address.

What can I try?

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THANK YOU for the sharp eye @Cintakc – you ‘Eagle Eye’.

Actually that is a ‘fickle finger’ TYPO in the post. I quickly verified in the equation field of Torque Pro and it is a “)”. And I have some “screenshots” of the TEST screen trying to slow things down and keep from making me dizzy. The formula has the ‘)’ there, and is picking up the value of Mass Air Flow Rate as it should.

I may have to employ your help again – on this one as I did on the quad spline formula for OIL TEMP.

Cheers my friend.

F-150Torqued

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F-150Torqued
try this equations
(Val{Mass Air Flow Rate}*0.001*2*100)/(((Val{Intake Manifold Pressure}*1000)/(286.9*(Val{Intake Air Temperature}+273.15)))*(0.0054*(Val{Engine RPM}/60)))

provided that for these parameters you have such units
Val{Mass Air Flow Rate} = grams/sec
Val{Intake Manifold Pressure} = Kpa
Val{Intake Air Temperature} = Deg.C

Hey @Cintakc

For ‘sure’ the answer to dashboard gauge displaying NOTHING (ZERO) was simply an equation that was TOO screwed up for Torque to handle it at ALL.

Manifold Pressure (pid ‘0B’) is unavailable (reads zero) on my specific vehicle. I substituted (Val{Turbo Boost & Vacuum Gauge}*6.89476) in your formula in place of ‘Val{Manifold Pressure}’. I have my system parameter set to use PSI instead of Kpa. With the Substituted parameters, Turbo Boost & Vacuum Guage was reading ~ -12.1 at idle and around -83 kpa as viewed with Torque Scan.

MAF runs ~ 6.1 to 6.8 g/s at idle.
Intake Air Temp runs ~ 100 to 120 f idling and moving it tracks outside air temp (~ upper 89 – mid 90’s here in South Texas).

Idle RPM runs ~ 580.

The formula generated VERY small negative results, -0.003 up to zero with some acceleration. There was some confusion between the formula and screen shots on Mass Flow Rate multipliers (100 versus 1000). I tried both with very little, but expected results.

I have NOT had a chance to try hard to understand the complete equation yet. I’ll get my ‘dementia exercises’ tonight.

In the meantime — Thanks.

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