USB-serial log download problem

Discuss issues and tuning software like DTASWin, E-Race, MegaLogViewer(DTA), etc. Also post archive versions of firmware.
Black Mamba
Posts: 10
Joined: Wed Jul 25, 2012 10:13 am
ECU Model: S80 Pro
Distributor: MaximumPsi
Firmware Version: 62

USB-serial log download problem

Post by Black Mamba »

Is there any brand specific unit that works best.?
I can connect and tune the car but when downloading log files on megalogviewer data is not accurate. No lambda, no ignition TPS is incorrect.
On real time or using DTA log viewer I see all info correctly.

Car was tuned using an old laptop with serial cable (no usb adapter) and at that time logs on megalogviewer worked fine.
I have not that laptop (it was my tuner's).

Anyone had this same problem or can point me in the right direction
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: USB-serial log download problem

Post by stevieturbo »

use E-race for viewing logs.

If the data is correct there, then the issue is with MLV.

Or just view the raw log in Notepad or Excel to see what data is there.
Black Mamba
Posts: 10
Joined: Wed Jul 25, 2012 10:13 am
ECU Model: S80 Pro
Distributor: MaximumPsi
Firmware Version: 62

Re: USB-serial log download problem

Post by Black Mamba »

Just opened the log with notepad and the values are missing there.
Lambda is all 0 (zero)
So the problem is getting the data from the DTA to my laptop using a serial to USB
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: USB-serial log download problem

Post by stevieturbo »

Weird. I just use a cheap egay USB adaptor and have never had any issues.
Black Mamba
Posts: 10
Joined: Wed Jul 25, 2012 10:13 am
ECU Model: S80 Pro
Distributor: MaximumPsi
Firmware Version: 62

Re: USB-serial log download problem

Post by Black Mamba »

Could it be that the com port 1 for the USB is set ay 9600 baud rate?
I read someone that was tring to get stream data from
the ECU got an answer form DTA saying that baud rate was 67000 or something very close, have to check it again.
Are there special settings I should put on com port 1?
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: USB-serial log download problem

Post by Rob Stevens »

Have you checked Lambda in the logging options?
Black Mamba
Posts: 10
Joined: Wed Jul 25, 2012 10:13 am
ECU Model: S80 Pro
Distributor: MaximumPsi
Firmware Version: 62

Re: USB-serial log download problem

Post by Black Mamba »

Yes, I even unchecked other things in order not to have too many, even tried just lambda checked and nothing.
I'm also having TPS value not showing correctly, never shows more than 20 or 30 % and have no advance value.
Funny thing is I can see all those values correctly on real time
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: USB-serial log download problem

Post by stevieturbo »

The Real time display has nothing to do with datalogging.
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ignitionautosport
Posts: 577
Joined: Wed Jul 27, 2011 5:30 am
ECU Model: S80 Pro
Location: New Zealand
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Re: USB-serial log download problem

Post by ignitionautosport »

It would indicate the ECU is seeing the values correctly though.
| '94 GSR Lancer | '96 Toyota Carib 20V | '83 Toyota Starlet | www.ignitionautosport.co.nz |
Black Mamba
Posts: 10
Joined: Wed Jul 25, 2012 10:13 am
ECU Model: S80 Pro
Distributor: MaximumPsi
Firmware Version: 62

Re: USB-serial log download problem

Post by Black Mamba »

I have some new info, it seems I have the data on the log file. I opened It on the notepad and it has all the values. (initially I thought I hadn't but I got confused with the columns not being exactly under the lamda title)
I also opened the file on erace and could see lambda.(no wonder why people prefers MLV instead)
I also downloaded latest MLVHD but I could not finds there the DTA on it and also it also reads less types of log files.
On the original MLV my tuner installed on my netbook does have the DTA option inside, but is not reading the file correctly.

So the question is what to do now? How do I fix the MLV to display info correctly?
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