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 recording OBD2 with LM2 
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Joined: Tue Jul 30, 2013 1:48 am
Posts: 29
Hi all,

First time ive ever tried logging OBD2 data while trying to find an engine problem that doesnt generate fault codes, is intermittant and driving me crazy.

Can someone tell me how to record data while connected to OBD so i can send the log files to people way smarter than i am and hopefully have them pick out any dramas with the data.

I connected to OBD, selected the correct protocol, selected some channels (default is 6) and selected "start trace file" but cant figure out if this is correct because I cant locate the file on the memory card when I bung it in the pc.

Also tried connecting the LM2 to the pc with usb cable, couldnt make sense of it that way either.

Don't have a laptop or a lead long enough to connect LM2 to the PC while i drive around ;)

I'd go to the dealer and let them take a look but the lack of fault codes will probably have them parts changing on my dime over 6 months until they randomly stumble on the issue then create a nice backstory as to how they are marvellous at fixing things and replacing the water pump to find a missfire is standard procedure.

For reference, the vehicle is a 2007 ford falcon (Australian vehicle) with the NA Barra 6 engine.

Cheers
Phill


Tue May 27, 2014 10:30 pm
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Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1744
You can't download the SD card through the USB cable, you must remove the card and use a card reader or card port in the PC. Open LogWorks and navigate to the card and open the file. If you want to save it in the PC so you can use it or send it in and E-Mail you need to save it to the Log File folder in LogWorks.

I don't understand why you can't connect from the LM-2 to your laptop with the USB cable and log with LogWorks in the laptop. I do that regularly and it works with no worries. I make a dashboard screen on the laptop with gauges of the channels being logged so they can be witnessed in real time. It is interesting what the timing is doing and how little advance is used in some engines with fast burn cylinder heads.


Tue May 27, 2014 11:59 pm
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Joined: Tue Jul 30, 2013 1:48 am
Posts: 29
tuner wrote:
You can't download the SD card through the USB cable, you must remove the card and use a card reader or card port in the PC.


I tried just using the SD card in the reader, still couldnt locate any files

i suspect im not recording the log properly, do i hit "record" on the LM2 or select "start trace file" in the submenu of the OBD section of the LM2.

Its connected and reading properly when connected to the vehicle via obd port.

Quote:
I don't understand why you can't connect from the LM-2 to your laptop with the USB cable and log with LogWorks in the laptop.


No laptop here :=D


Wed May 28, 2014 3:53 am
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Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1744
Use “Record” to record a file.

“Start trace file” is used to create a “trace file” (list) of what channels of information are available from a particular vehicle’s OBD. It is not for recording the diagnostic information from the channels, just the ID of channels available to the LM-2. This is used for communication with Innovate. See section 6.9 in the instructions.

I confess I have only used the SD card with my LM-2 a few times and that was several years ago. I use them with my DL-32 with no problems. There are newer higher capacity cards that won’t work in these devices because of a format conflict.

Are you using the SD card that came with the LM-2 or one from another source? I think cards larger than 1 or 2 Gig cannot be formatted for this. I know some HD cards will not work because they are not the same format used by the LM-2. The solution there is to re-format the card following the instructions in the LM-2 manual. When was the last time you read the instructions?

I don’t immediately recall the formatting procedure but it was easy enough I muddled through it successfully a couple times so far. Computers are evil incarnate.

I borrowed a card at the track one time I couldn’t make work but it was a HD card for a camera. No loss, who needs to record data continuously for a year? I think a 1 Gig card will record something like 700 hours of 32 channels.

I use a laptop connected to the LM-2 fairly regularly. That is a slick deal because you can watch the graph screen in real time as it records or a live dashboard gauge screen.


Wed May 28, 2014 9:45 am
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Joined: Tue Jul 30, 2013 1:48 am
Posts: 29
thanks Tuner.

The card is the original as supplied with LM2 and is working fine.

I found my copy of the user manual so im having a good read through.


Wed May 28, 2014 8:44 pm
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