Data log with no data?

[chips60bug]

I have gotten this message a few times. It drives me crazy! Any reason why it happens? Sucks to lose a nice long drive worth of data. Nothing changed in my log activating sequence.

bane of my existense.gif

[LT401Vette]

That log does not contain any data, like the message says....

Does this occur this just randomly?

Can you post a project archive from TunerStudio?

[DaveEFI]

This happened to me a few times when using my very old laptop. Could get round it by stopping a log after 15 minutes or so and starting a new one. Sort of wondered if it had run out of memory.

[chips60bug]

Seems to happen pretty much every time i try to log to the laptop right now. Really frustrating. Here is a link to the project archive. https://drive.google.com/file/d/0B-FfFU ... sp=sharing
Thanks for any help that can be given!

[LT401Vette]

I see you have a CAN Device in the project. Is the CAN Device going online also?

Can you:
- delete the TunerStudioAppDebug
- Start TS
- Turn on COM Debug under the Communications Menu
- Open your project and connect.
- Start a Data log

Wait a few seconds, and stop logging and close TS.
Don't let it go long at all, the TunerStudioAppDebug will grow fast.

The zip and post or send the TunerStudioAppDebug.txt

[chips60bug]

Here you go. Thanks for your help!
I have an I/O Extender in the system. It works fine.

[LT401Vette]

Did you start a data log during that file?

It should output the file name when it opens the file before even writing the headers. I don't see any data log starting.

[chips60bug]

I opened TS, enabled the function under the communications menu, selected my project, powered the ecu, selected and saved a log, turned off the log a few seconds later, turned off the ecu, closed TS, then zipped up the file and submitted it. Log is enclosed here.
Did I do something wrong in that sequence?

[LT401Vette]

Nope, sequence seems fine. I see nothing wrong in the AppDebug..


Actually looking at the new msl you posted, that does have data in it. Only 43 records, but that would be right for a short log.

[chips60bug]

Some do and some don't, I have a sync loss issue I'm trying to work through right now at 5600 rpm. TS never misses a beat, but the car will completely shut down at that rpm or thereabouts. Unfortunately, if I hit that spot, I lose the log every time. It also kicks on a cam fault indicator. It seems that if that indicator is active, it won't record any info either. The internal sd card does just fine though. These are just a few observations so far.

[dll67]

My setup is doing the same thing. Closing the project and re opening it is one way I found to fix it. I also have JBPerf IOx which sometimes has a communication error and sometimes the main controller does the same thing. I dont recall if it coincides with the data logging problem.
To many other problems to focus on more than a work around for the data logging one.

I'll attatch a msq and Appdebug this evening .. Your right it gets big .. looks like its still trying to connect while working offline?

Edited - Added Tunerstudioappdebug.zip

TunerStudioAppDebug.zip

Also when data logging will work it wont start automatically. Set to autoamtically start when "rpm>100"

[chips60bug]

I have made a few changes and (knock on wood) I am getting solid data logs every time. My cam sensor was reading 360 crank degrees out of phase, so I spun it 180 and turned off my noise filters and immediately got full rpm out of the car. I do still have one little blip of sync loss I'm trying to resolve, but I never get the cam fault indicator, and logs are great every time. Very odd, but I'm happy. Thanks for the help!