MegaLogViewer VE Analysis Manual

[LT401Vette]

At the request of several, here is a brief usage guide for MegaLogViewer VE Analysis:
http://www.efianalytics.com/megalogview ... Manual.pdf

There is also a page on the site that is a work in progress:
http://www.efianalytics.com/megalogview ... lysis.html

I will continue to add detail as I go along.

[poob]

Ok I read this and it is great but how do you finalize the changes into the ECU after I run VE Analyzer ?

http://www.ideasandsolutions.biz/megalo ... lysis.html

I keep screwing up with Megalog and VE analyzer......again.

Could you take me step by step from the point that I open the newly crated
log, right after I open Megalog viewer?

Here is what I do:

Create Log from Megatune

Save log "as"

Close Megatune

Open Megalog viewer

File open

Highlight Excel log file

Ok, here's where I am doing something wrong.-

Do I open VE analyzer first or save it or save as?

Do I need to go back into Megatune and open the new MSQ or can I save the
changes to the MSQ that I was using ? OR???

Thank you in advance for your help

[LT401Vette]

At the time you capture the log, you need to save the msq you were running on during that log. Try not to do any tuning during or after the log, you want the msq to match the configuration you were running on while capturing the log.

Now when you open this log in MegaLogViewer, you want to open the msq too.
MegaLogViewer always automatically opens the last msq you had open. So, if you always save to the same file name, this will be automatic, if you saved to a different filename, you need to make sure you open the one you saved with the log.

Now run VE Analyze.
Make any adjustments you might want to.
Click Accept Changes.

When done, there are 2 ways you can bring the data back.
The traditional way:
While still in MLV, Click "Save MSQ". That will save to the same file you have open, alternatively you can Click Save MSQ As

Then Switch to MegaTune or TunerStudio and From the Menu:
File --> Open Tune (msq)
On MegaTune it is just
File --> Open
When prompted to burn to ECU, click yes.

~~~~~~~
Alternative method, you might find this method preferable as you don't need to use an msq.... but it only works if you are using TunerStudio.
- Select the entire table by dragging the mouse from the top, left most cell to the bottom right most.
- Right Click
- Select Copy
- Switch to TunerStudio
- Open the same VE Table (ie VETable1)
- Select the Top, left most cell
- Right Click
-Select Paste

If you haven't changed the RPM and Map Bins you can keep taking the table from TS to MLV and Back using copy/Paste.

[poob]

Thanks for replying

So I am running an MSQ that is already saved and burned to the ECU.
I create and save the log then bring them both up while in MLV, run VE analyzer, accept the changes and hit "save" if I want to implement the changes to the same MSQ file - right?

[LT401Vette]

Yep. Then just have to burn that back to the controller

Remember the msq's are just a way to back up or exchange a configuration. The Controller is always the system of record.

[poob]

Thanks !!!

[904svo]

Where can one find out what the meaning of the list of items that can be displayed, like Gego,Gair, TPSacc and others.

[LT401Vette]

Depending on your firmware, you may have fields that are specific to that firmware, but most of the common ones are in the MegaLogViewer Help

On the Menu bar:
Help --> "Field Dictionary"

[904svo]

I have version 2.44 and that field is not under Help.

[LT401Vette]

Upgrade ;)
either auto update or download

[904svo]

Thanks, That did it.

[styxplo]

Both links for the manual are broken. When I open my current tune (.msq file) i am able to view it graphically. When I try to run VE analyzer it say the following fields are required for VE analyzer to work best: RPM, Gego, AFR, Load. Also to improve resluts please log these additional fields. CLT. I click on the OK box and nothing happens?? I'm not sure what I'm doing wrong

[trakkies]

Are you also doing a log of the car running? IIRC, you need both that and the MSQ file in Megalog viewer for VE analyse to work.

[LT401Vette]

What firmware are you using?
Can you post an msq?

[styxplo]

Thanks for the response. Just to let you know when I posted I didn't realize this thread was 4 years old. I posted in an ongoing thread I have in the tuning fuel and air topic under Help with initial setup. (tinking I would get more traffic) Perhaps a mod can move this for me.

I did have a running data log (about 15 mins) brought up in MegaLogViewer to. I was able to open my tune with analyzer and it showed my current VE table. When I clicked on VE analyzer is when I had problems. When you ask what firmware I'm guessing you mean what Megasquirt version I'm using?? Megasquirt II V 2.920.

[styxplo]

I tried to upload my datalog but it said the file wsa to big.

[styxplo]

Just to be sure how do I check my firmware. I had to order a new daughterboard and now that I think about it I'm pretty sure I used the latest firmware from the website (just bout 2 weeks ago) instead of the one I had saved on my flashdrive.

[LT401Vette]

You have MSII 2.92 based on your msq.

That should be fine.

Check the MegaLogViewer setting:
Options --> Field Naming (ECU)

make sure it is still set to Auto.

[styxplo]

It is set to auto detect (default)

[styxplo]

When I first open my log file it say The Y axis fields "Load" not found in current data log. Set the correct Y axis field from "Options" Menu for table highlighting and VE analysis to work correctly