Datalog target afr

edgedj · Post by **edgedj** » Mon Jul 10, 2006 12:00 pm

Hi,

Does anyone know if there is an easy way of datalogging target afr. I'd really like to see it in MegaLogViewer just below the real afr...

Cheers
Dave

Bernard Fife · Post by **Bernard Fife** » Mon Jul 10, 2006 11:23 pm

Dave,

Add the line:

Code: Select all

   entry = afrtgt1,         "AFRtrgt1",    float,  "%.2f"

to the [datalog] section at the end of the INI file (megasquirt-II.ini, for example). You'll see quite a few others there, add the line above anywhere you like (where you put it determines where it is shown in the datalog and viewer listing).

This may give you values that are 100 times to large (ex, 1370 instead of 13.7) - if so, find a line in the same file like:

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   afr1             = scalar, S16,   28, "AFR", 10.00, 0.0

and change it to:

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   afr1             = scalar, S16,   28, "AFR", 0.100, 0.0

There are corresponding entries for afr2 and afrtgt2 if you are running dual wide-band sensors, and you can add that too.

Lance.

edgedj · Post by **edgedj** » Tue Jul 11, 2006 2:25 am

brilliant, thanks Lance. It worked perfectly. I then set the field min & max for both afr & afrtrgt1 in Megalogviewer to 9 & 25 and they overlay perfectly.

I think this really could have been solved by me

though, sorry!

Cheers
Dave

Bernard Fife · Post by **Bernard Fife** » Tue Jul 11, 2006 8:02 am

I think this really could have been solved by me though, sorry!

Dave,

No problem, I'm glad you brought it up, it reminds me to add it to the default INI files for V2.6 and V2.8 MS-II code!

Lance.

Holger · Post by **Holger** » Wed Jul 12, 2006 6:13 am

hmmm by me, it didnt work

i put it in the megasquirt.ini but it will not be shown in the logviewer (V2.0)

Bernard Fife · Post by **Bernard Fife** » Wed Jul 12, 2006 10:13 am

Holger,

You probably didn't modify the ini file that Megasquirt is using. If oyu look for the audit.log file (makes sure it is dated the same as the last time you openend MegaTune) you'l see all the files and directories MegaTune used to open. Look for lines like:

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r MegaSquirt-II.ini
   + C:/Program Files/MegaSquirt/MS2_v2.8/mtCfg/MegaSquirt-II.ini
   MegaSquirt-II.ini:0102    #if LAMBDA, including=false
   ...

The first line tells you which ini file was used (it will be something like megasquirt.ini, megasquirt-II.ini, or MSnS.ini). The second of these lines tells you which directory it is in. That will be the file you want to modify.

Lance.