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    I'm hoping to play with the 8051 torque...

    I'm hoping to play with the 8051 torque management tables found in EEXTRA here sometime soon.

    But, before you tune a 4L60E that's got over 40K since a rebuild on it, as a part-time 4L60E builder,...
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    Happy New year - yes steveo, you should...

    Happy New year - yes steveo, you should definitely do tuning. There are very few tuners who will do Gen 2 LT1s; Brandon Strong in Oklahoma will do them, and a few others, but that's it. There are...
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    FIXED - here's the solution.

    SOLUTION - thanks to @steveo for the suggestions.

    For some reason, if you leave the default eehack folder as: C:\Program Files (x86)\EEHack,
    The .eedata files and any CSVs you save will NOT be...
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    I sent you an email with a screenshot. ...

    I sent you an email with a screenshot.

    eehack works fine and does all that, but Windows 10 does not show any of the .eedata or resultant CSV files as viewable in File Explorer. BUT they are...
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    Same problem as well. Can't see or open log data...

    Same problem as well. Can't see or open log data or saved CSV. But they ARE visible in eehack. @steveo any thoughts?
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    Tom, I ordered a few of those 1N5344B's before...

    Tom, I ordered a few of those 1N5344B's before you responded; it looks like the Izt is 5x what the 1N4738's is, (150ma vs. 30ma). The Zzt is 1.5 vs. 4.5 ohms. It's been a long time since I've done...
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    Zener diode question - based on mouser...

    Zener diode question - based on mouser, it looks like the P/N you used was 1N5344B?
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    I have an arduino uno R3 on hand; any issues with...

    I have an arduino uno R3 on hand; any issues with using that instead of an arduino nano? The processors are the same, I believe the code is the same, and we only need two output pins so we should be...
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    Just wanted to say thank you for your efforts...

    Just wanted to say thank you for your efforts supporting this forum!
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    Should I start a new thread for the reflashing...

    Should I start a new thread for the reflashing then as well?
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    Happy new year! Tom H has done some fabulous work...

    Happy new year! Tom H has done some fabulous work here, and JimCT_9C1 has helped with the XDF. We've been talking offline and I think the next step is to get FlashHack baselined in GitHub so we can...
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    Sorry for your troubles. There is no reason...

    Sorry for your troubles. There is no reason someone shouldn't get 150k-200k miles out of a properly rebuilt 4L60E, and it doesn't have to cost an arm and a leg either. All anybody needs to know/do is...
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    I noticed the mode 27 response difference as...

    I noticed the mode 27 response difference as well. Edit: in both this session and the previous sessions, the I had only made those two mode 27 requests. So you are seeing the 'first' and 'second'...
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    With DX PT1: >AT SP2 ...

    With DX PT1:


    >AT SP2
    OK
    >AT H1 ...
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    Updated to RealTerm 3.0.1.44; much nicer to send...

    Updated to RealTerm 3.0.1.44; much nicer to send in hex!

    But, now I'm getting an error (from the cable) on the carriage return and line feed; nothing from the PCM yet in DVI protocol:
    Sending: 10...
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    I'm going to try to update RealTerm before my...

    I'm going to try to update RealTerm before my next post; I'd like to get to the point where Tom can just send me a txt file to pump into the interface and then send the capture file back to him, so...
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    Doublecheck me. I think the correct DVI format...

    Doublecheck me. I think the correct DVI format for an example ELM message is:

    ELM: DX SD 4C 10 F0 23 00 0E 00

    DVI: 10 XX 4C 10 F0 23 00 0E 00 YY where XX is message length, and YY is checksum....
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    Jim - I'm using RealTerm 2.0.0.70; the chatter on...

    Jim - I'm using RealTerm 2.0.0.70; the chatter on SourceForge looks like 3.0.0.27+ has an option to send as hex. EDIT - I found a 3.0.0.30 beta download site and will try it after work.

    Tom - the...
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    Some experimentation: After the required: ATSP2...

    Some experimentation:
    After the required:
    ATSP2 and
    AT SH 4C 10 F0 <-- this allows you to skip writing "DX SD 4C 10 F0" where 'DX SD' is the ELM command to send data, and '4C 10 F0' is the...
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    JimCT_9C1, I can only get to the car once or...

    JimCT_9C1, I can only get to the car once or twice a day to test things; so if you can access it faster, fantastic.

    Tom says the next steps are:

    Establish how to get rid of needing DX SD every...
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    Hey Jim, thanks for chiming in. Tom H and I have...

    Hey Jim, thanks for chiming in. Tom H and I have been going back and forth testing comms with my OBDXPro VT.

    I'm using the RealTerm open-source terminal program set for the same settings you...
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    Hi Tom, I'm just getting this hooked up. I sent...

    Hi Tom, I'm just getting this hooked up. I sent ATZ and got back A41 T54 Z5A. Then I got ?3F 0D 0A >3E. I was playing around with some of the other commands and the >3E seems to appear at regular...
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    Hopefully without taking this thread more than a...

    Hopefully without taking this thread more than a few posts sideways, what does the PCM do in response to "cruise active"? Does it change auto transmission shift behavior?
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    So are you talking to the PCM via the UART, and...

    So are you talking to the PCM via the UART, and not the Class 2 data bus?
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    Update - I did speak with the owner of Torqhead...

    Update - I did speak with the owner of Torqhead and he had real good reasons for not continuing to use the optispark in any form, though he didn't think what I proposed was beyond possible. EFI...
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