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Thread: Tuner Pro V5 and OBDII plug-in?

  1. #31
    EFI GearHead ! EagleMark's Avatar
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    I found some files while going through my back-up before my computer crash of 2012...

    Hope they help.
    Attached Files Attached Files

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  2. #32
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    sorry to 'jack your thread but where the heck did you guys learn all this?! LOL
    Everywhere. It's all over the 'net. The hardest part is figuring out where to start. I use OBDII every day at work but not at this level. I spent some time a few years ago trying to communicate with an OBDII pcm but I've forgotten most of what I learned. So I've spent the last few days looking through posts and threads reading this and that. And just like anyone else, I can get overwhelmed with the amount of information. If I see something I think might be useful later I download it and save it. The files Eaglemark just posted are a great example. I think I've got the same data in two or three different formats but I'm going to download it anyway. Sometimes I'll find a thread with a good discussion so I save the whole thing. Eventually I get to a point where I decide I want to "Do something" and I get to work. In my experience it's much easier to learn new info if you're trying to apply it at the same time as you're learning it.

  3. #33
    Fuel Injected! JP86SS's Avatar
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    Quote Originally Posted by 1project2many View Post
    In my experience it's much easier to learn new info if you're trying to apply it at the same time as you're learning it.
    That's exactly it.
    You just have to keep picking at it till something is figured out, then poke at it some more.
    I can't seem to get anything to work now so I'll take a step back and get one item to read out, then take everything I've learned up to this point and build up the definition again.
    Hopefully it will only take 2-3 more times before it all works out.
    Jp
    86 Monte, 406, Hyd Roller, 700R4 beefed, G3-APU1 and NVSRAM 730, S_AUJP

  4. #34
    EFI GearHead ! EagleMark's Avatar
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    May be late to the game here but there is a lot of good info at:
    http://obdcon.sourceforge.net/2010/06/obd-ii-pids/

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  5. #35
    EFI GearHead ! EagleMark's Avatar
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    Alos found this on Moates site.
    Attached Files Attached Files

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  6. #36
    Fuel Injected! JP86SS's Avatar
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    Got some more info and testing done.
    The TP plug-in DOES convert the response from the ELM327 (in Ascii) to hex.
    The data is the only thing passed out of the Plug-in.
    All of the response definitions must have the following settings:
    Body size =1
    Payload size =1
    Payload offset = 0

    Even if this is a 16 bit response, the setting is the same.
    The "value" definition will be the place to select if it is 8 bit or 16 bit value.

    Got lots of items defined, and have data flowing at 16-18 Hz but that seems to be the total number of command responses you get so you must limit how many items you want to see.
    Playing with different sets to get better dashboard display. Feels like your watching 160 baud on an old car though.
    Still want to try and increase the speed of the ELM using AT commands but that might not be possible.
    Jp
    86 Monte, 406, Hyd Roller, 700R4 beefed, G3-APU1 and NVSRAM 730, S_AUJP

  7. #37
    EFI GearHead ! EagleMark's Avatar
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    Even with EFI Live Scantool the rule of thumb is no more then 24 PIDS at a time. So duplicating ADX commands for fuel, spark, O2. DTCs etc may be the way to go when you find a bunch. Then one for tuner data.

    If you need some testing let me know.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  8. #38
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    i don't think it's the ELM so much as it is the incredibly large overhead the OBD2 PID request requires...

    Mark, what kind of update rate do you see with 24 PIDs? does EFILive display an update rate?
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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