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Thread: The ultimate LT1 $$EE patch thread

  1. #46
    Fuel Injected!
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    This is a lighter version of sd control patch.

    It lets you switch from MAF to SD through modified eehack program and enables display of current MAf cell number, SD airflow and calculated VE%.
    All of the datastream works including pin d27 wideband.

    Datastream that wont work is some trans error byte and egr DC%.

    If anyone needs to switch from SD to MAF , let me know. It is one byte simple fix.
    Attached Files Attached Files

  2. #47
    Fuel Injected!
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    If I'm understanding you correctly we can switch between maf and speed density without flashing?

  3. #48
    Fuel Injected!
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    That is right.
    It works like regular mode 4 control.
    There are some limitations though. It is not a permanent setting. It can be set with the engine running. It will be in effect until PCM is reset by cycling ignition.
    If you apply the patch you will be running in MAF mode with the option to switch to SD mode anytime you want.
    Another patch will be made if anyone needs to run in SD mode and switch to MAF mode.

  4. #49
    Fuel Injected! steveo's Avatar
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    after this is better tested i'd love to pull it back into the main eehack branch and include the patch in eehack itself. please report results

  5. #50
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    I will be really happy if you do that.

    Maybe make a checkbox, so users select which patches to add as an addition to the main patch.
    I will post a log to see how it works. You can tell which mode is by looking at ve value. If it is updating it is in SD mode. When it freezes and MAF starts updating your in MAF mode.
    I also tested thoroughly open loop idle patch. It works flawless. If you want you can add it too.

    SD control needs to be 2 different patches.
    1st will be for running MAF mode with the ability to switch to SD
    the other will be for running SD with the ability to switch to MAF.

    Next great thing that I am working on is a realtime delta change +-5% of calculated VE%.
    Patch is almost done but I am missing the control interface at eehack level.
    If you can add a slider bar similar to spark control bar we can get it work.

    I will rework the eside aldl patch too. Now it has some data colision at SPI comm with main eehack patch and applying the patch is real pain.
    I moved some spi address pointer, which is really not needed, so want that fixed.

  6. #51
    Fuel Injected!
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    Here are some logs.

    How hard will be to add mode 4 message in the logged datastream and play the control window with the main dash.
    Attached Files Attached Files

  7. #52
    Fuel Injected! steveo's Avatar
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    Quote Originally Posted by kur4o View Post
    I will be really happy if you do that.

    Maybe make a checkbox, so users select which patches to add as an addition to the main patch.
    I will post a log to see how it works. You can tell which mode is by looking at ve value. If it is updating it is in SD mode. When it freezes and MAF starts updating your in MAF mode.
    I also tested thoroughly open loop idle patch. It works flawless. If you want you can add it too.

    SD control needs to be 2 different patches.
    1st will be for running MAF mode with the ability to switch to SD
    the other will be for running SD with the ability to switch to MAF.

    Next great thing that I am working on is a realtime delta change +-5% of calculated VE%.
    Patch is almost done but I am missing the control interface at eehack level.
    If you can add a slider bar similar to spark control bar we can get it work.

    I will rework the eside aldl patch too. Now it has some data colision at SPI comm with main eehack patch and applying the patch is real pain.
    I moved some spi address pointer, which is really not needed, so want that fixed.
    i don't see any reason to "opt-out" of single patches that "qualify as good enough for eehack", as they shouldn't do anything unless activated by eehack, and shouldn't affect a running engine before eehack is connected, or affect other datalogging tools.


    i designed eehack around a 'patch level' with version support and i want to stick with it

    trust me it's better that way, so eehack users don't have to worry about selecting certain patches or reconfiguring eehack to match them. it should happen automatically and they get all the benefits

  8. #53
    Fuel Injected!
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    I see your point and we will keep it that way.
    EEhack patches must be kept as simple as possible and only connected with the main features of eehack.
    If anyone wants more stuff, than it should apply other patches manually.

    I figured a real simple solution for the fuel mode control.

    Before apply the patch make a simple check in the bin


    check eside byte_2028 bit $02

    if 0 load

    6193 eside
    B6 20 28 85 02 ==> B6 00 2F 85 08
    Maf primary mode ==> switch to SD


    if 1 load

    6193 eside

    B6 20 28 85 02 27 ==> B6 00 2F 85 08 26

    SD primary mode ==> switch to MAF

    I would like to keep the ALDL stuff separately.

    Can you please on the next version of patch make some simple correction of the eside aldl patch

    Keep stock bin data unchanged at 82f7 till 8336 and from 6f78-6f79 I add some pointers and move data that was really not needed

  9. #54
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    I've been searching the forums for the open-loop idle cell 16 patch. I thought it was posted somewhere but i haven't had much luck finding it?

    I know I downloaded it form here at some point.

  10. #55
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    Lot`s of files get lost on the site so here is the latest xdf.
    Attached Files Attached Files

  11. #56
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    maybe thats where the confusion lies another user also has an xdf called eextra.
    anyhow, thanks I will report back on both when i have running vehicle to test.
    All these patches seem very promising.
    Can you explain how to run the modified version of eehack?

  12. #57
    Fuel Injected! jthompson122183's Avatar
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    Quote Originally Posted by johnny_b View Post
    maybe thats where the confusion lies another user also has an xdf called eextra.
    the xdf posted is eextra from the original thread here: http://www.gearhead-efi.com/Fuel-Inj...E-xdf-(EEXTRA)

    Kur40 has added his patches from this thread to eextra, he has his own way of labeling so he can keep track of what he has done.
    97z28 A4 obd1 swap(16188051)
    Tunerpro Newbie

  13. #58
    Fuel Injected!
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    Quote Originally Posted by johnny_b View Post
    Can you explain how to run the modified version of eehack?
    Install eehack 4.7. Than move eehack49.exe in 4.7 installation folder. Run eehack49.exe from there.


    I need some beta tester.
    There is my latest patch. Control VE% in real time +-5% through modified eehack4.91 programm.
    Instructions in the xdf.

    This beta patch is not good, so don`t use it. I will upload a working version soon.
    Attached Files Attached Files
    Last edited by kur4o; 01-04-2018 at 05:16 PM.

  14. #59
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    Quote Originally Posted by kevinodb1 View Post
    Hi Kur4o thanks for that.
    So are you saying the End Of injection when its set to "6" STD is 33 Degrees ATDC from 0/720, because there is also TDC at 360 Degrees, the start of the intake stroke! We need to be talking about the same place!?
    Based on the article(PDF) above posted by Jthompson it would appear there could also be a table attached to that value that is load/rpm based, that would be VERY useful to find.....
    At idle the IPW is 1.4m/s and 18m/s is about 702 degrees at 6500 RPM, so that would be about 54.5 degrees of injection period at idle..
    So the best place to end the injection would be about 460 degrees after TDC 0......which is approximately the maximum intake valve open point...see my chart above..
    Something to try anyway!
    Ok cool. is the EEhack patch available for my 94.
    I have LT1 edit file for the 94 and 96..
    I have the conversion program that converts 94 files to BINS, it does also convert 96 ones, but I dont know if thats the correct transfer algorithm for a 96.....I can see data in Tunerpro if I open the 96 BIN but its all over the place....as expected.
    Shall I post a STD 94 BIN converted from LT1Edit and a 96 one the same?
    Cheers
    Kevin

    X is the raw hex value converted to decimal so in your case 6 will be 180 degrees after top dead center when cylinder fires.
    raw value is $60=96
    720-(96*5.625)=180

    The patch I have works only with 94-95 bins. If you have a running 94-95 car you can do some beta testing.

    I need a 96 lt1edit virgin file. Please don`t try to convert it. I want to see what file format they use.
    Last edited by kur4o; 01-04-2018 at 05:32 PM.

  15. #60
    Electronic Ignition!
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    Here are the Bins mentioned in the other thread regarding tuning for Injection Timing.

    They are from my 1994 Corvette Y car manual and my 1996 Corvette Y car Manual LT4 GS. Both cars had never been edited, the GS had only 1 owner before.

    I converted the original 94 file today to a BIN from LT1Edit using TUNECONV V1.0.0.1 Windows MFC App.

    The 96 original file was converted a while ago from LT1Edit using TUNECONV DOSwindow version 1 for exchanging LT1edits to Tunercat format and back.

    Cheers
    Kevin
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