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Thread: E38 CAX for "Open Loop Lean Limit" - OS 12628990

  1. #1
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    Default E38 CAX for "Open Loop Lean Limit" - OS 12628990

    Hey guys,

    Have been doing some searching and have come up short, i'm trying to find the "Open Loop Lean Limit" table which allows you to set the permissible lean EQ Ratio over coolant temp. The E40's have this PID (B0149) and i'm sure I have seen some E38's with it too. Would anyone know if this table is hidden away and/or have a CAX file to unlock this table by chance.

    Cheers
    Kris

  2. #2
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    What OS has B0149? I have never seen it.
    "All that is needed for the triumph of evil is that good men do nothing..."

  3. #3
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    Try this

    Code:
    [B0149]
    ;         Description
    ;         ---------------------------------------------------------------------------------------------------------------------------------
    DESC.001 = Min Open Loop Table
    
    ;
    ;         Seg Caption                          Major            Minor            Vis Dis 2D Grp
    ;         --- -------------------------------- ---------------- ---------------- --- --- -- ---
    VIEW =      2 "Minimum Open Loop"         "Fuel" "Open Loop"                          1  2   0   0
    ;
    ;         Address(es)                      BitOff Bits Typ Inv
    ;         -------------------------------- ------ ---- --- ---
    ADDR =    1E179E                                 0   16 UNM   0
    ;
    ;         Units    Factor         Offset Prec MinLimit MaxLimit MinUser  MaxUser
    ;         -------- -------------- ------ ---- -------- -------- -------- --------
    SI_SLOT =  Factor 0.0009765625           0    2   0     4   0     4 
    ;
    ;         Body           Col            Row
    ;         -------------- -------------- --------------
    ULABELS = .              .              .
    ;
    ;         Enumerations
    ;         -------------------------------------------------------------------
    SI_ENUM = .
    IM_ENUM = .
    ;
    ;         Units            Labels
    ;         ---------------- -------------------------------------------------------------------
    SI_COL =  .
    IM_COL =  .
    SI_ROW =  ECT           "-40,-28,-16,-4,8,20,32,44,56,68,80,92,104,116,128,140,152"                   
    IM_COL =  
    ; ===============================================================================
    "All that is needed for the triumph of evil is that good men do nothing..."

  4. #4
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    BAM! That did it. How did you work that out? CAX noob here...

  5. #5
    Junior Member GTS 383's Avatar
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    Hi Highlander,
    That CAX file is the business. I have been looking for something like that. Doesn't work on all E38 OS though. Do you happen to have one for OS 12653249 or one for a OS 12656930. Alternatively, how do I alter the above CAX to suit other E38 OS?
    Peter
    HSV GTS Coupe 6.3Lt LS1, 224/234 @115, 1 3/4" Tri Y, M6, LS7 Clutch, True Trac.

  6. #6
    Junior Member GTS 383's Avatar
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    ...other than just renaming the CAX file of course.
    Peter
    HSV GTS Coupe 6.3Lt LS1, 224/234 @115, 1 3/4" Tri Y, M6, LS7 Clutch, True Trac.

  7. #7
    Joe (Moderator) joecar's Avatar
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    Renaming the cax will not work, unless the OS you're renaming it to has that parameter/table at the exact same address, and with the exact same interpretation.

  8. #8
    Junior Member GTS 383's Avatar
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    G'day Joecar,
    Yep, got that. So what do I have to change in that CAX to get it to work in those other OS's?
    Peter
    HSV GTS Coupe 6.3Lt LS1, 224/234 @115, 1 3/4" Tri Y, M6, LS7 Clutch, True Trac.

  9. #9
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    The only way to map it to another OS is to dig through the OS code and figure out where that table exists in that OS.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  10. #10
    Junior Member GTS 383's Avatar
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    Hi Erik,
    Yes, not an easy thing I'm sure (certainly beyond my capabilities). Like Kris I was hoping someone had already created a CAX for those other OS's.
    Peter
    HSV GTS Coupe 6.3Lt LS1, 224/234 @115, 1 3/4" Tri Y, M6, LS7 Clutch, True Trac.

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