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Thread: Auto Tuning - Step-by-Step

  1. #41
    EFILive Crew Site Admin Tordne's Avatar
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    Check out my post in this thread, you must be getting the voltage also. Search for your Wideband though, should be something like PLX1

    Cheers,
    Andrew
    EFILive Crew


  2. #42
    Forum tyhee Site Admin GMPX's Avatar
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    Quote Originally Posted by leres
    One other point, we don't need to worry about zero'ing the LTFTs because that happens as a side effect of flashing the calibration, right?
    Quick and easy answer, yes LTFT's get reset.

    Cheers,
    Ross

  3. #43

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    The first map image I posted is hosed, some how. Applying the TPS/ECT filter is ok but when I "hide empty cells" where a cell is considered empty if the count is less than 50 results in averages that are much less than the minimum for that cell. Anyway, here's the map using the same data if I don't hide empty cells:
    Hopefully it's obvious to someone else what I'm doing wrong...

  4. #44
    EFILive Crew Site Admin Tordne's Avatar
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    There was a bug in a particular version (don't recall which off hand) that basically has a mathematical error in the hidden cell portion of the MAPs.

    From memory it hides 'n' cells (set as the number of cells to hide) from all cells still displayed. Then it does the average over the correct cell count and therefore the value is lower than you would expect.

    The issue is definitely resolved in the latest pre-release version, but I'm not sure which versions have been made publicly available.

    From what I gather the 7.2.3 version is due out any time now.
    Andrew
    EFILive Crew


  5. #45

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    Before I started today I upgrade to the June 9th pre-release of V7.2.3.

  6. #46
    EFILive Crew Site Admin Tordne's Avatar
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    Well that must be the version then (it's been a while)...

    I guess it is going to take an Excel spreadsheet until 7.2.3 is made generally available :(

    Not much conciliation but 7.2.3 will be worth the wait.
    Andrew
    EFILive Crew


  7. #47
    Unknown Zone TAQuickness's Avatar
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    Quote Originally Posted by leres
    I must be missing something obvious; maybe I should be asking why scale the VE tables by 15%? Is it because we're running open loop and are going to be off and want to insure we're too rich instead of too lean?
    correct. there are some cell's you are never going to hit, like 105 kPa 8000 rpm, or 15 kPa 400 RPM). The value's in these cells can safely be off by 15%.

    Quote Originally Posted by leres
    One other point, we don't need to worry about zero'ing the LTFTs because that happens as a side effect of flashing the calibration, right?
    Trims are reset when you reflash, and you are in open loop during most of this autotuning predure.

  8. #48
    Member ace68's Avatar
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    How does this tune work for stock, mild mods, 01 TA?
    Do you leave the Maf unpluged?
    I have the things needed to do this but don't know if it's for me.

  9. #49
    Unknown Zone TAQuickness's Avatar
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    Quote Originally Posted by ace68
    How does this tune work for stock, mild mods, 01 TA?
    Should work fine. If all you have are a few bolt on's, lid, headers, you can probably get away with not scaling your VE table up. To be safe, I would scale it up at least 5% to make sure you don't run too lean.

    Quote Originally Posted by ace68
    Do you leave the Maf unpluged?
    Only if you intend to stay in SD

    Quote Originally Posted by ace68
    I have the things needed to do this but don't know if it's for me.
    Save a copy of your original tune, as stated in the write up, and if you find it's not for you, you can always flash the original tune back in.

  10. #50
    Lifetime Member 87gmc's Avatar
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    I just used auto tune this weekend all i have to say is sweeeettt 8)

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