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Thread: 2001 Express 2500 5.7 CNG Rescue OS 52371036

  1. #1
    Carb and Points!
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    2001 Express 2500 5.7 CNG Rescue OS 52371036

    Hi I need some help writing my ECU to delete vats so I can start it. I purchased this van with a blinking security light and a warning from the owner. Not knowing much about passlock I ignored until it died and required a tow home. It won't take a relearn and the light is on steady.

    It is a 12200411 pcm but this OS doesn't come up with google search. I don't know how to create an xdf to delete vats. The XDFs that are close to my van with 5.7 and 4l80e don't pass checksum in unerPro. I have most of the tools but need direction. Can I flash it with a different OS/xdf pair? Please help thank you!

  2. #2
    Fuel Injected!
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    Sorry you are stuck. If it's VATS it will usually start and die and then no re-start until you cycle the key giving it a few seconds within.

    If you can read the stock file and post it, there are quite a few capable people able to help reply with a VATS delete file to reply with :)
    -Carl

  3. #3
    Fuel Injected!
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    btw, it is very common for those crank sensors to fail. The cam sensor can also be a problem. Try to buy Delphi before AC Delco and definitely before Standard, and if Standard, never if the part number ends in a T
    -Carl

  4. #4
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    Thanks for the replies. That's exactly what's happening starts strong dies immediately after. I verified fuel pressure. I have unfortunately been through the key relearn process without success. That would be sweet here is my bin. Good thought on the sensors. It was running with a new crank sensor when it died but I put the old one back in.

    I ended up buying a used module on eBay just to confirm and see if I can get it running... but I'd also like to tune it out completely.

    Code:
    Loading configurations... filetypes,dtcsearch,autodetect,extractedsegments,units,stockcvn - Done
    Loading file: p01-p59.xml [OK]
    
    express2500_stock.bin (p01-p59.xml (v 1))
    
    Segments:
     OS          PN: 52371036 , Ver: ND, Nr: 1  [0000 - 04FF, 0500 - 3FFF, 20000 - 7FFFD], Size: 63FFE
     EngineCal   PN: 52371221 , Ver: AB, Nr: 2  [8000 - 170DF], Size: F0E0
     EngineDiag  PN: 52371024 , Ver: AB, Nr: 3  [170E0 - 19FAF], Size: 2ED0
     TransCal    PN: 52371025 , Ver: AB, Nr: 4  [19FB0 - 1E40F], Size: 4460
     TransDiag   PN: 52371026 , Ver: AB, Nr: 5  [1E410 - 1ED0F], Size: 900
     Fuel        PN: 52371022 , Ver: AB, Nr: 6  [1ED10 - 1FB0F], Size: E00
     System      PN: 52371027 , Ver: AB, Nr: 7  [1FB10 - 1FFAF], Size: 4A0
     Speedometer PN: 52371028 , Ver: AB, Nr: 8  [1FFB0 - 1FFFD], Size: 4E
     Eeprom_data PN: 9386530  , Ver: DLRX[4000-7FFF], Size: 4000
     Hardware           9386530
     Serial             1EB1DMBM1110
     Id                 3154131286
     Id2                52371035
     Broadcast          DLRX
     VIN                1GAGG25R311216989
    
    Checksums:
     OS          Checksum 1: B2FC [OK] Checksum2: 1915 [stock]
     EngineCal   Checksum 1: E8DA [OK] Checksum2: E85E [stock]
     EngineDiag  Checksum 1: 1C32 [OK] Checksum2: 96BF [stock]
     TransCal    Checksum 1: 110E [OK] Checksum2: 684E [stock]
     TransDiag   Checksum 1: 0871 [OK] Checksum2: 41DF [stock]
     Fuel        Checksum 1: BD36 [OK] Checksum2: 6250 [stock]
     System      Checksum 1: 22B1 [OK] Checksum2: 3D54 [stock]
     Speedometer Checksum 1: E6C6 [OK] Checksum2: 6E81 [stock]
     Eeprom_data 
    DTC search: can't find DTC code table
    Seeking tables...Done
    Attached Files Attached Files

  5. #5
    Fuel Injected!
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    Not sure why I'm even doing this as I'm pretty disgusted trying to help people here, but here is your bin with VATS turned off.
    Attached Files Attached Files

  6. #6
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    Quote Originally Posted by 2xls1 View Post
    Not sure why I'm even doing this as I'm pretty disgusted trying to help people here, but here is your bin with VATS turned off.
    Really cool of you to do that! I will try it and report back. I would love to be able to do this myself, and give back to others. The farthest I got was generating an XDF with universal patcher, which shows the VTD_Configuration at 0x1FBBC address. Can you help me with the process for doing this so I can learn? Thanks 2xLS1!!

  7. #7
    Fuel Injected!
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    Quote Originally Posted by highnoon View Post
    Really cool of you to do that! I will try it and report back. I would love to be able to do this myself, and give back to others. The farthest I got was generating an XDF with universal patcher, which shows the VTD_Configuration at 0x1FBBC address. Can you help me with the process for doing this so I can learn? Thanks 2xLS1!!

    To turn off vats you need.

    Open file in universal patcher.
    click Tuner

    In the filter box type VTD_confgiuration

    Open the vtd configuration and change the setting to NONE from the drop down menu.
    Save bin.

    Now you have turned off vats.

  8. #8
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    So I just got this bin written and the van started immediately and stayed running! This whole thing was a huge process and I can't thank you all enough.

    Kur4o when I do this and save it then open the bin in TunerPro I am seeing a value of 1 (PWM enabled VATS) not a 2 like I was expecting. I still want to get this figured out myself. Thoughts?

  9. #9
    Fuel Injected!
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    .....
    Last edited by 2xls1; 11-02-2021 at 04:32 AM.

  10. #10
    Fuel Injected!
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    Quote Originally Posted by highnoon View Post
    So I just got this bin written and the van started immediately and stayed running! This whole thing was a huge process and I can't thank you all enough.

    Kur4o when I do this and save it then open the bin in TunerPro I am seeing a value of 1 (PWM enabled VATS) not a 2 like I was expecting. I still want to get this figured out myself. Thoughts?

    It could be because you are using older version of the software.
    You can get the latest version here.
    http://gearhead-efi.com/Fuel-Injecti...4&d=1635857159
    Current version is 18.50
    Last edited by kur4o; 11-02-2021 at 07:41 PM.

  11. #11
    Carb and Points!
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    Aha I was using 16.43. Cool flash screen and icons in tuner menu :) It shows as turned off very easy to see now too, I compared bins. Thanks!

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