Toothlogger Problem

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pelle17b
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Toothlogger Problem

Post by pelle17b »

I am having problems with the tuner studio toothlogger. The screen output for both the tooth and the trigger loggers look like the values they show are completely wrong like on the attached picture below. The screen looks very similar both when I log from a running engine and from the stim board, and there is no way that the engine would run if the tooth signal really was like it is shown.

I got the impression that the logs always looked alike. I think they do. The excel diagram attached is from adifferent log session. Identical. Its almost like the MS sends the wrong data from for example reading from the wrong memory address, or tuner studio looking in the wrong area in the serial stream getting the asme block of data every time. If I look further n the log I can see that the same data block repeats itself on and on every 350 something sample.

I am using the MSII Extra 2.0.1 code.
Tuner studio 0.988.6 and Java runtime 1.6.0_01
Win XP SP2
MSQ file is attached between the pictures.

The engine has a 60-2 trigger wheel on the crank with a VR sensor. No noise filter
Engine runs fine, but looses sync occasionaly like once or twice in half an hour. VR signal looks very nice and noise free on an oscilloscope.

It is of course the occasional lost sync I am after with the logging.

Am I doing something obvious wrong? Any hints. I can provide more data if required to analyze. Just say what you want.

/Peter
Last edited by pelle17b on Thu May 14, 2009 12:13 pm, edited 2 times in total.
racingmini_mtl
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Re: Toothlogger Problem

Post by racingmini_mtl »

The tooth logger seems to have problems with the 60-2 wheel. I don't know if the problem is on the MS side or on the TS side but I have seen strange things displayed like you and also it has made the MS act completely randomly while logging with the toothlogger. This is on the bench with the JimStim. As soon as the logging is stopped and the RPM is reduced, things go back to normal.

Jean
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LT401Vette
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Re: Toothlogger Problem

Post by LT401Vette »

I know it worked earlier, but I did make some changes. Let me take a look and see if I broke something.
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
jsmcortina
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Re: Toothlogger Problem

Post by jsmcortina »

I've tested with MS3 at over 9300rpm and the latest TS and see no problems. Let me check with MS2.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
pelle17b
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Re: Toothlogger Problem

Post by pelle17b »

I just added some more info in the first post above (to have it all in the same place). Basically the logs that I get always look the same. /Peter
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Re: Toothlogger Problem

Post by jsmcortina »

What I believe is happening is that at higher rpms, the time the code spends in the logger (likely clearing the buffer) is long enough to miss a tooth on the wheel. This is not good and suggests that the tooth loggers should only be used at lower revs on high tooth count wheels.
I start seeing problems beyond about 6000rpm with 60-2.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
jsmcortina
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Re: Toothlogger Problem

Post by jsmcortina »

pelle17b wrote: I am using the MSII Extra 2.0.1 code.

Am I doing something obvious wrong?
Now I've re-read you post I have the answer!

The loggers are broken in the 2.0.1 code. Don't try to use them. Use the 2.1.0 code for functional loggers.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
pelle17b
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Re: Toothlogger Problem

Post by pelle17b »

Ok i saw something about broken loggers in 2.0.1, but I interpreted it as it was only the composite and that the normal tootlogger was fine.
My mistake. I will try 2.1.0.

Thank you! Excellent program!

/Peter
LT401Vette
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Re: Toothlogger Problem

Post by LT401Vette »

Interesting, how broke James? Should I disable the Logger viewer on 2.0.1?

Jean, what code where you seeing the strange behavior on?
Phil Tobin
EFI Analytics, helping to simplify EFI
Next Generation tuning software.
Supporting all MegaSquirt versions and firmwares.
http://www.TunerStudio.com
http://www.efiAnalytics.com/MegaLogViewer/
Support the firmware running your engine:
http://www.msextra.com/doc/donations.html
jsmcortina
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Re: Toothlogger Problem

Post by jsmcortina »

LT401Vette wrote:Interesting, how broke James? Should I disable the Logger viewer on 2.0.1?
I'm pretty sure that all of the loggers were broken in 2.0.1. However because there were no graphical tools to view the data back then nobody noticed.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
pelle17b
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Re: Toothlogger Problem

Post by pelle17b »

Updated to 2.1.0 RC1 20090505

Logging works fine. At least on the stim.
Time is 22.30 here in sweden at the moment so the neighbours will kill me if i start that car now :lol:. In other words car test in the morning im sure it will work.
Excellent tool for troubleshooting toothed wheels.

Thanks!

/Peter
racingmini_mtl
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Re: Toothlogger Problem

Post by racingmini_mtl »

With the 2.1.0 RC1 code, if I set it to 4 cylinder COPs, 60-2, noise filter enabled and start the composite logger, as soon as I go above about 3500RPM the MS goes wild. I have to go down below about 2700RPM (with or without logging) before the MS goes back to a normal behaviour. I get the same thing with the alpha 3.0 code.

Jean
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