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Techstream program and a link ELM327

Discussion in 'Gen 3 Prius Audio and Electronics' started by qqqwww111, Oct 19, 2010.

  1. qqqwww111

    qqqwww111 New Member

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    HI every body

    I've install Techstream program and after i run the program the program showing it can not connect to my device but it work with ScanTool , ScanXL and ScanMaster


    my link is ELM327
     

    Attached Files:

  2. rrolff

    rrolff Prius Surgeon

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    This really needs to be posted to the 'Tech' forum - not audio...

    Techstream software is designed to work with the Mongoose MFA (cost ~$350). It does not work to my knowledge with anything other....
     
  3. jayvee

    jayvee Member

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    I believe Techstream can be used with other interfaces, in its OBDII mode - which doesn't allow diagnostics, programming, etc.
     
  4. jayvee

    jayvee Member

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    Have you installed the drivers for the ELM327 device?
     
  5. planetaire

    planetaire Plug in 20 kWh 85 km/h or > 208km range

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    Hello.

    What I know and saw is that Teachstream may use mongoose as say rrolff and also Tactrix open port 2 (less expensive then mongoose).

    Tactrix+Teachstream on gen III and on gen II Prius.

    Elm327 use ftdi drivers that give you a virtual com port.
    I believe that teachstream only accept pass-thru drivers.

    Also i think you buy a slow elm327. May be 9,6kb or 14,4kb.
    Prius can speed is 500kb.
    And Elm327 when it send a command to the odb stop immediatly listening. That's another problem. Teachstream send commands (pid sollicitated)

    Sorry.
     
  6. PaJa

    PaJa Senior member

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    I think Techstream needs J2534 PassThru windows driver for the full functionality. AFAIK there is no ELM based HW to support that. The generic OBDII interface can be working (maybe).
    To moderator/admin: pls move the thread to proper forum.
     
  7. WE0H

    WE0H Senior Member

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    I see this is a old thread but I think this is the correct place to ask.

    What interface works with Techstream to write to the Prius?

    Mike

    Mobile on my SGH-i717
     
  8. PaJa

    PaJa Senior member

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  9. WE0H

    WE0H Senior Member

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    Will the Tactrix and it's software allow flashing the Prius computer?

    Mike

    Mobile on my SGH-i717
     
  10. PaJa

    PaJa Senior member

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    Tactrix is able to reflash Subaru ECUs, but I didn't try for
    Prius, because:
    1. car is in the warranty period
    2. no need to reflash ECU mayself, yet
    3. I do not have a reliable source of alternative SW
     
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  11. WE0H

    WE0H Senior Member

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    Did you try to read the Prius? The alternative software will be developed from many owners trying different things until we as a group come up with useful changes that can be shared. That is how the Saturn Ion Redline software became available. Many different people tried changes and it took a couple years until some really good software was available then people shared files online. That software was designed to change many variables including increasing mpg's or going for more HP & TQ. I asked Ken in Japan if he has heard of custom files to flash and he said he has not heard of anyone that has tried reading & writing to the car. Do you know of a technical forum for the Prius? Maybe Prius Chat is not the correct forum to find people who have an interest in seeing what could be done with the software?

    Mike :)
     
  12. PaJa

    PaJa Senior member

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    If you mean to read data or make some setup changees via Techstream diagnostic SW, so YES. I didn't try to read ECUs SW and do some reverse engineering. I'm not aware about some better forum in english for Prius.
     
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  13. WE0H

    WE0H Senior Member

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    I am going to try to find a technical Prius forum even if it is not English :)

    Mike
     
  14. PaJa

    PaJa Senior member

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    I know there is some forum in Spain and in spanish.
     
  15. WE0H

    WE0H Senior Member

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    Do you have the link? I didn't find any real good forums when I looked last night.

    Thank you,
    Mike :)
     
  16. PaJa

    PaJa Senior member

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  17. WE0H

    WE0H Senior Member

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    That looks like a good forum :) Google Chrome translates it to English very nice :) I will do some reading this weekend and let you know if I found some good news on tuning the Prius.

    Thank you,
    Mike [​IMG]
     
  18. WE0H

    WE0H Senior Member

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    They are talking about modifying the Prius software in a few threads. Looks like you found a very good technical Prius forum :)

    Mike
     
  19. Electric Charge

    Electric Charge Active Member

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    BTW, you can buy the TechStream software on eBay, which comes with a compatible interface, for less than $30. Saw it posted on the RAV4 forums, with many people reported success.
     
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