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Thread: Uber-easy DIY USB ALDL Cable

  1. #166
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    that is the version i was using for quite some time, i'm now using a smaller board for better/smaller packaging, but there were certainly no problems with them.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  2. #167
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    Quote Originally Posted by RobertISaar View Post
    that is the version i was using for quite some time, i'm now using a smaller board for better/smaller packaging, but there were certainly no problems with them.
    are you able to share what you're using now? is it cheaper , more expensive? easier to configure?

  3. #168
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    slightly cheaper, but the main advantage is size.

    http://www.ebay.com/itm/New-FT232RL-...item2eca47385e

    that style. as you can see, they're not much larger than the FT232RL itself.

    i've been intermittently receiving units that require older drivers to work though, for whatever reason that may be caused by.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  4. #169
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    thank you , greatly appreciated.

  5. #170
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    ok, so i've pulled the trigger and bought
    http://www.ebay.com/itm/New-FT232RL-...47385e&afsrc=1

    now it's the waiting game....... guess i'll read over the previous 12 pages again and try to figure out which wires go where

  6. #171
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    Robert, have u had a chance to test this setup on the '7747 ecm's yet?
    If it don't fit force it, if it don't force fit f&%@ it!

  7. #172
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    personally, no, since i haven't touched anything 160 baud in years.

    i want to say at least a few people have been using them with 7747s/similar with no problems though.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  8. #173
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    Robert, is this the same item u found on ebay? http://www.frys.com/product/6997547#detailed
    If it don't fit force it, if it don't force fit f&%@ it!

  9. #174
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    looks similar enough. i don't see another IC on-board to convert it to RS232 specs or any other voltage level, so it would probably be a safe bet.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  10. #175
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    Ok thanks for the input. Price is cheap enough so Im gonna try it and see. Ill update when i get it connected...hopefully ;)
    If it don't fit force it, if it don't force fit f&%@ it!

  11. #176
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    My unit has finally arrived,
    I just reviewed the Cable Installation to TunerPro RT thread, so my com ports are configured correctly in device manager \ TunerPro……. I am also running the correct driver (2.08.14)
    http://www.gearhead-efi.com/Fuel-Inj...to-TunerPro-RTNow I’m ready to make my cable, just want to verify what wires im using.
    The Rx and the Tx wires connect together which are then plugged into the M pin on the ODB1 socket, then ground to ground (pin A)?
    Last edited by freestyle5150; 10-19-2013 at 06:13 AM. Reason: text color

  12. #177
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    exactly like that for MOST 8192 baud applications will be correct. some will need a switched 10K resistor going from A to B pin, and 160 baud will require connecting the Tx/Rx/ALDL M circuit to the ALDL E circuit, at that point, you're ready to take on everything that uses the 12 pin connector.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  13. #178
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    Quote Originally Posted by RobertISaar View Post
    exactly like that for MOST 8192 baud applications will be correct. some will need a switched 10K resistor going from A to B pin, and 160 baud will require connecting the Tx/Rx/ALDL M circuit to the ALDL E circuit, at that point, you're ready to take on everything that uses the 12 pin connector.
    Thanks for the quick reply....... so I am running 1994 impala ss which is a 8192 baud application...correct? I don't need to worry about the 160 config...right? Regarding the 10K resistor going from A to B pin, that is for TPI w /MAF..... does that apply to me?

  14. #179
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    correct.

    assuming you never need them, you won't need to impliment them. i didn't on my personal cable since the chance of me playing with anything that wasn't an 8192 setup and non 86-89 TPI at that were pretty slim.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  15. #180
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    Quote Originally Posted by RobertISaar View Post
    correct.

    assuming you never need them, you won't need to impliment them. i didn't on my personal cable since the chance of me playing with anything that wasn't an 8192 setup and non 86-89 TPI at that were pretty slim.
    awesome, thanks! one last question for today, while configuring my com ports in tunerPro I ran the "test for vaild interface using setting" test. The test failed with a "cable not found or functioning @ 8192 baud" error. Is that to be expected ? I had the FT232RL unit hooked up via USB to the computer, but no cables hooked up to the FT232rl unit.

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