Changing decimal place for logged pids

[Gelf VXR]

Forum admin

Can i increase decimal place for GM.APCYL_E40_DMA for logged and export data? In the SAE. generic file, I cant find units for g cyl?

Thanks :)

[joecar]

Hi Gelf VXR,

do you mean for displaying on the scantool charts...

on the chart go rightclick->chart properties, click the Series tab (the second tab over), click the series number (1,2,3,4) and in the Format box change the number after the "%."

[joecar]

i.e. the fractional precision is a function of displaying on the chart/gauge and is not related to the data itself (the log captures the data to its naturally widest available precision).

[Gelf VXR]

Hi Joe

When i export data, g cyl is only to two decimal places, i wanted to see 3 or 4?

Same as shown in the data TAB

[joecar]

oh, exported data... IDK...

[Gelf VXR]

I asked this same question back in 2009

http://forum.efilive.com/showthread.php?9940-Export-data-and-decimal-precision&highlight=

I still can't locate the units for g cyl? gps is there

[Gelf VXR]

I'm guessing as this is a GM DMA pid that it can not be changed in the SAE.generic file?

Is this an Efilive programer only change?

[Blacky]

No, you can't change the precision of DMA PIDs (or any PIDs that are not defined in sae_generic.txt) in the V7 software.

You could try creating a calculated PID that just returns the value of the APCYL PID and specify the precision in the calc_pids.txt file where you define the new units for your new calc PID.

Regards
Paul

[Gelf VXR]

No, you can't change the precision of DMA PIDs (or any PIDs that are not defined in sae_generic.txt) in the V7 software.

You could try creating a calculated PID that just returns the value of the APCYL PID and specify the precision in the calc_pids.txt file where you define the new units for your new calc PID.

Regards
Paul

Thanks :cheers:

[Blacky]

You could also do it in V8 by defining new units like this:

Using the MAF PID as an example which is defined by default as g/s with zero decimal places,. Lets say I wanted to display/export it as g/s with 2 decimal places.

I'd set up a new unit called g/s_alt and a conversion from g/s to g/s_alt with a precision of 2. Note: you can choose any name for the new units.

15508

It is important to use the specify the group "Flow". That will cause this unit to be available as a display option for all PIDs defined using the g/s units (i.e. MAF) when you are selecting PIDs to display in the charts.

15507

Note: the precision is set to 2.

15506

Right click on the purple area to select the MAF PID and the g/s_alt units.

15505

To export data from V8, just highlight the portion of the chart you want to export, right click and select "Copy", then paste into Excel.

Regards
Paul

[Gelf VXR]

Cheers