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Thread: A way to cheat and fix your strims/ltrims using Rtac Very quickly.

  1. #71
    EFILive Reseller wait4me's Avatar
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    Here is an easier route to go to put in the ve fixer. Put this file in your documents folder/efilive v7.5/ user configuration/

    You need to say YES to the overwrite of the calc_pids.txt file.

    Then reopen the software and you will now see the pids under the calculated tab.
    Attached Files Attached Files
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  2. #72
    EFILive Reseller wait4me's Avatar
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    You still have to do the instructions to make the linking to work as posted in the 3rd thread.
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  3. #73
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    Quote Originally Posted by wait4me View Post
    The maf can still be put on. It will work fine.
    I've been driving for around 4-6 hours and it seems my vehicle is tuning much slower than you said in the initial post. You said yours fixed the whole VE table within 10 minutes.

    **Edit: I think it was because my update frequency was 10 instead of 1. Changed it now. Going for a drive.

    My truck was really rich. I was previously getting 10mpg. It has been rich its whole life with me. After doing some VE tuning, I'm getting 12.5 mpg. Improvement, but still alot of work ahead.

    Do you use coarse or fine? Did you change any other rates?

    To set this up I followed the AutoVE RTACS tutorial, and then this post. I am using STFT1 only, and no wideband, because I do not have it installed yet. Tuning strictly off of STFT1 and bens.

    I have another question but I save it for my next post.
    Last edited by Stealth97; December 28th, 2008 at 01:15 PM.

  4. #74
    Lifetime Member hquick's Avatar
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    Hi Eric,
    When I went through this...I started with coarse control and set it to make big changes for the first short drive. Next I set it to fine control and smaller changes to try and taper it in as close as possible.
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  5. #75
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    Thanks Howard, YGPM or You Got PM.

    I'm having much fun with this.

    After I tune the VE, I guess I'll do the MAF next. Wideband soon.

  6. #76
    Member JAY4SPEED's Avatar
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    I'm thinking about adopting this strategy for my E67. Obviously RTACS is out for me with the E67 with no roadrunner.

    The first question I have is that if I don't plan on using RTACS do I need to worry about modifying the cal link file as it says in post #3? I've built a STFT ve fixer map and plan to apply the ST bens the same as I would with auto VVE so is the cal link file editing necessary?

    Right now I've been doing OLSD VVE tuning. I'm assuming I'd have to enable closed loop and force my LTFT to 0 and allow the short term fuel trims to accumulate and populate my STFT ve fixers map, correct?

    I liked this formula ( ({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2)/100 + 1 from post #69 because it makes sense to me to average both banks together rather than just having a formula for bank 1. However, I'm not quite understanding the "+1" at the end of the formula. Was that something specifically for RTACS to keep it auto adjusting over the nominal trim and allowing the STFT to bring it back down? Would I be better off using the formula ( ({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2)/100 if not using RTACS? I apologize my math skills are lacking.

    Thanks for any clarification!
    Jay

  7. #77
    Member JAY4SPEED's Avatar
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    Quote Originally Posted by wait4me View Post
    As for the other stuff, ill soon post auto spark table building.....
    This I'd be interested in learning as well. Any updates on this?

  8. #78
    Joe (Moderator) joecar's Avatar
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    Jay,

    If you're multiplying (and you are) use the 1st formula: (({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2) /100 +1

    If you're adding (and you're not) use the 2nd formula: (({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2) /100


    The 1st formula gives multiplying factors wrt 1.00 (like 1.02 or 0.98).

    The second formula gives additive terms wrt 0.00 (like +0.02 or -0.02).


    See the difference...?

  9. #79
    Member JAY4SPEED's Avatar
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    Quote Originally Posted by joecar View Post
    Jay,

    If you're multiplying (and you are) use the 1st formula: (({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2) /100 +1

    If you're adding (and you're not) use the 2nd formula: (({SAE.SHRTFT1} + {SAE.SHRTFT2}) /2) /100


    The 1st formula gives multiplying factors wrt 1.00 (like 1.02 or 0.98).

    The second formula gives additive terms wrt 0.00 (like +0.02 or -0.02).


    See the difference...?
    Yes, thank you very much Sir!

  10. #80
    Lifetime Member samh_08's Avatar
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    Thread from the dead..

    Simple question. Are we supposed to set B4206 to 'disable' so the STFT's are not influencing how much the VE table is actually off?

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