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Thread: Free OBD2 Software anyone? (No Longer Free)

  1. #1
    VENDOR - OCTech
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    May 2007
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    Free OBD2 Software anyone? (No Longer Free)

    About six months ago I bought an OBD2 scanner from OBDPro's. I looked at some of the free (and paid) software out there but never found anything that I really cared for, so I decided to write my own. I've been developing, testing, using off and on for a couple of months now and am pretty satisfied with it.

    Here are some features:
    - MPG calculation including total MPG, instant MPG, and three trip meters (requires mass air flow sensor)
    - Fuel usage estimation (total and instantaneous)
    - Distance traveled estimation
    - Load calculation
    - Coolant temp calculation
    - Logging of speeds and fuel usage
    - Reading and clearing trouble codes (displays code + description)
    - Monitoring of all supported PIDs
    - PID monitoring priority (e.g. Update speed every cycle, engine coolant temp every 20 cycles)

    I am interfacing to the car with an OBDPro usb scantool (www.obdpros.com). I have a Pontiac grand am and have only been able to test on this so I don't know how well other protocols will work. If anyone is interested then PM me and I can send (or post) an install.

    Attached are some pics.
    Attached Images Attached Images     

  2. #2
    Maximum Bitrate pcpete's Avatar
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    Wow, pretty impresive, wouldn't mind trying it with mty elmscan 5 usb, will copy this in PM...

  3. #3
    Newbie PCBum's Avatar
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    WOW, nice! Post link?
    "If at first you don't succeed, keep on suckin' till ya do succeed" (Stooges)

  4. #4
    VENDOR - OCTech
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    Ok I attached the setup. One thing to note is that this uses the .NET 2.0 framework so you will need to have that installed.

    Please let me know if it works/doesn't work, etc. I've been using it for a while and it's been pretty stable, but then again I wrote it so I know how not to break it .

  5. #5
    VENDOR - OCTech
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    By default the software scans a few PIDs (speed, mass air flow rate, load, engine coolant, fuel system status, RPM). To add others, double-click the row in the Supported PIDs tab on the Diag page. You can also change polling priorities on the PID Monitor Setup page by double-clicking the polling rate column for each row.

  6. #6
    Maximum Bitrate pcpete's Avatar
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    Installed it at work to play around with interface and such, looks really pro, from install to use... seems to be touch screen friendly, too.

    Will install in carputer later today and post results...

  7. #7
    Maximum Bitrate pcpete's Avatar
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    Ok, tested in car on the way home from work, would not connect, said timeout error on bottom.

    It's an Elmscan 5 USB, works fine with scantool and palmer dashcommand software.

  8. #8
    VENDOR - OCTech
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    I don't have an ELMScan 5 to test with, so I tried adding some debug and another command to see what's going on. I'm guessing it's getting hung up trying to issue an identify command to the device. Try this and send me the output of the Device Traffic tab on the Diag page.

  9. #9
    Maximum Bitrate pcpete's Avatar
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    OK, heading out to get some groceries, will give it a shot and let you know...

  10. #10
    Maximum Bitrate pcpete's Avatar
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    Ok, tried it with the update, wanted to take screenshots, but my **** dinovo mini kb doesn't have printscreen button.

    The log didn't save anything, but it did show something on the screen.

    I was able to capture a video of my desktop, I'll try to upload it on youtube..

    Here it is:

    http://www.youtube.com/watch?v=wLHqP1c9kXk

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