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Thread: OBD2 works with the car off not on?

  1. #31
    Who am I? HiJackZX1's Avatar
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    There is an easy solution.... take the car to a dealer that can use their scanner on the car while it is on. Then if the scanner does work, trash that unit and get one that is known to work. The one I have is a OBD2 Pro unit. http://www.obdpros.com/. That will eliminate 100% of the headaches. I Had the same exact one you had before, and it just seems that with different people they break down different for no reason. Its obviously a very cheaply built product and the fact you have issues proves it.

    PS: I have the serial port model because the previous USB model (the one you had) made me think that the USB was an issue. I recommend getting the USB, since alot of boards are starting to phase out com ports. As of now I am having to use a serial to USB adapter.
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  2. #32
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    Yep I don't doubt that its cheaply made and I never 100% expected it to work, but I'll just have a chat to my mechanic next time its in cheers

  3. #33
    What can I say? I like serial. Curiosity's Avatar
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    It's not really a poor design. They use quality components and don't skimp on parts. They actually go kind of crazy with overuse of components like transistors to drive the LEDs, and caps everywhere. Total waste of the back side. I've studied a few things like this. And yes, inside it says ELM327/[V1.2]. LOL But I'd say it's a mass produced copy of someone else's design.
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  4. #34
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    And there she is heh.

  5. #35
    Constant Bitrate
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    Quote Originally Posted by ZX1Cruizer View Post
    There is an easy solution.... take the car to a dealer that can use their scanner on the car while it is on.
    The problem with this is that dealers often use make/model specific tools, not generic OBD-II ones. So, working at the dealer is not nec. an assurance that just swapping tools will fix the problem.

    The scanner at an independant shop would be more of an apples/apples test.

    -jjf

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