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Thread: Uber-easy DIY USB ALDL Cable

  1. #181
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    were the Rx and Tx lines connected yet? if not, that will happen.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  2. #182
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    Quote Originally Posted by RobertISaar View Post
    were the Rx and Tx lines connected yet? if not, that will happen.
    Tx and Rx were not hooked up yet..... Thanks again for all your help. I will post my results once I'm done.

  3. #183
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    I connected Tx & Rx wires together, Cable found and functioning.

  4. #184
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    should be good to go then.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  5. #185
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    will this cabel work with 2001 CHEVY SILVERADO 1500 5.3L ENGINE pcm 411
    http://www.ebay.com/itm/GM-OBD1-Scan...e71420&vxp=mtr

  6. #186
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    no. as stated quite a few times in the auction page, it is meant for OBD1 vehicles with an OBD2 connector. this only happened with certain 94-95 models.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  7. #187
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    Ok guys. Finally got a chance to play with the ft232 adapter. Test for valid interface=cable found and working. click on connect says connecting then a second or two later changes to no connected. Never says connected also shows no data (i know the two go hand in hand) ;) working on a '7747 ecm using driver version 2.08.28 any ideas? Thank you in advance.
    If it don't fit force it, if it don't force fit f&%@ it!

  8. #188
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    i'm not a definitive source on anything 160 baud related... but you have a correct, known to work ADX selected?

    also, if you have it accessible, is the Rx LED lighting up as if the ECM is sending data?
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  9. #189
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    Using adx v5.2 one of Marks. No, when i plug the cable into the usb port on my laptop all lights go off, otherwise with adapter hooked to aldl pins E and A both red & green lights flicker with the key on run. Odd thing in TP is when chcking interface i found that even with the cable unplugged it show cable found and functioning. Now that is on comm 4 if i switch to comm 5 or 6 it doesnt detect hardware. Something is t right here.
    If it don't fit force it, if it don't force fit f&%@ it!

  10. #190
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    if the cable is detected even when unplugged from the computer, the wrong port is being used. my laptop does that with COM3, it is essentially a ghost port.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  11. #191
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    Also, I am using the osepp ft232 adapter and have the tx and rx pins soldered together if that makes a difference.
    If it don't fit force it, if it don't force fit f&%@ it!

  12. #192
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    Ok so i gotta find out which comm my adapter is using then? Win xp yeah
    If it don't fit force it, if it don't force fit f&%@ it!

  13. #193
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    i don't remember exact steps on XP anymore, but you'll need to get into the device manager and look in the ports section. when you plug the cable in, a new serial/COM port should show up, that would be the cable.

    i want to say, open start menu, right-click on "my computer", properties, then one tab shows the option to get into it.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  14. #194
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    Got it workin! After changing from "use plug in" to autoprom and back to use plugin, switch to comm5 and im logging data. Bout time lol. Thanks Robert for your input. Have a great day. Now i can start tuning this thing.
    If it don't fit force it, if it don't force fit f&%@ it!

  15. #195
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    strange..... i've never seen that process be required before. i'm not complaining, if it works.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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