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Thread: Loaded Custom OS: 03Z06..starts/dies after 1 sec

  1. #1
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    Default Loaded Custom OS: 03Z06..starts/dies after 1 sec

    I loaded Custom OS 0203003 into my 2003 z06. The car starts and then dies. I retraced all my steps to make sure that I performed than correctly. I checked the VATS (theft) settings and they all seemed to be ok. I did a comparison of files and the only things that were different were the values changed per page 7 of the install manual. I performed a search I'm not getting anything that I can use. Any help would be appreciated.

  2. #2
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    Post your tune. Try first flash for operating system and a second flash for tune only.
    Y2K C5, M6, LS6 intake, Kooks LT headers, High flow cats, 216/224 113 LSA, 5.3 Stage II heads. STS twins. COS

  3. #3
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    Quote Originally Posted by purrvert
    Post your tune. Try first flash for operating system and a second flash for tune only.
    I did flash the OS first and then the tune only. Please see attached for the tune. Thanks in advance for help.
    Attached Files Attached Files

  4. #4
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    Quote Originally Posted by Earl H
    I did flash the OS first and then the tune only. Please see attached for the tune. Thanks in advance for help.

    Try changing the 35 to 50kPa / 400 to 1200rpm main VE table by +3%, if it still runs 1 sec and dies....add another 3%.....had that problem before.

  5. #5
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    Set the open loop multiplier to 1.00 to begin

  6. #6
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    When you go key on, and connect with the scanner is the VIN correct?

    2000 Silverado Full Size 4x4: Forged 6.2, H/C F1R Procharger
    98A4 Z28: 02 PCM H/C Forged 347, 9" Moser 3.73
    V1 V2 99+up RR COS #5 OLSD Dual Stg N20
    www.efialchemy.com
    www.greatamericancarwar.com

  7. #7
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    did you fix it yet
    2002 ws6 stock short block
    GMPP cnc LS6 Heads 11.4:1 cr
    .576 i .581 e 116 lobe
    D1SC @ 10#
    723 rwhp 654 rwtq on E-85

  8. #8
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    Quote Originally Posted by onfire
    Set the open loop multiplier to 1.00 to begin
    as stated A0008 should be 1 not 2 if it is any higher than 1 it will command more fuel you are commanding twice the fuel with it set at 2 you should read the tutorial it appears you have other issues in there that will need to be addressed
    2002 ws6 stock short block
    GMPP cnc LS6 Heads 11.4:1 cr
    .576 i .581 e 116 lobe
    D1SC @ 10#
    723 rwhp 654 rwtq on E-85

  9. #9
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    2 ended up being the default value. The tutorial said it should be at least 1, therefore I didn't change it. I will be trying the recommended steps 1st thing in the morning to see if they fix the problem. Please list others if they come to mind. I will be trying all of them.

  10. #10
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    the tutorial explains the values that load with it are not sane values they are out of range when you first open the .tun file it will open a window stating that there are calibrarions out of range these must be put in range for the vehicle run properly if you click on the cal# it will have on the upper right the min. and max values
    2002 ws6 stock short block
    GMPP cnc LS6 Heads 11.4:1 cr
    .576 i .581 e 116 lobe
    D1SC @ 10#
    723 rwhp 654 rwtq on E-85

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