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Thread: Custom operating system

  1. #1
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    Default Custom operating system

    I have used a tune from Holden Crazy to tune a motor with Cable throttle using 1mb PCM. The operating system is 12606807. Is there a COS for this?

    Mike

  2. #2
    EFILive Crew Site Admin Tordne's Avatar
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    That is a late model (2006) OS for the LS1 controller. So, there is no COS for this I'm afraid. Do you need to be using the late model OS, or could you go back to say OS # 12587603 and therefore COS # 040730xx?
    Andrew
    EFILive Crew


  3. #3
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    I was just using the latter one as it works with cable throttle, Will the earlier one work as well?

  4. #4
    EFILive Crew Site Admin Tordne's Avatar
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    I actually don't know 100% the answer to that. Did the 2005 Commodore use cable throttle still? If so you could use OS # 12592433 and COS # 041400xx. 2005 was the first year Holden used the 1MB PCM.
    Andrew
    EFILive Crew


  5. #5

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    2005 commodore use's fly by wire
    330 rwkw EFILIVE OS 01290005 SD Cam / Head Tuned 6 speed VY SS Commodore
    10/71 Blown 572 Big Block Chev HQ 2 Door Monaro

    GM Performance Centre
    Busselton WA
    AUSTRALIA
    Phone: 0447 003050

  6. #6
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    OS 12587604 seems to work with cable throttle

  7. #7
    Forum tyhee Site Admin GMPX's Avatar
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    We did add the options matrix in the calibrations a while back, with that you can just tell the PCM, ETC or Non ETC.
    Need official EFILive help, please go here.
    For tuning support please post your questions on this forum (or other auto forums).
    Sorry if I don't respond to your PM, don't take it personal.


  8. #8
    Joe (Moderator) joecar's Avatar
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    See G1206, G1207.

  9. #9
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    Thanks guys thats all good, The motor starts/runs etc with close air/fuel, (loaded my own maps) Idles nice But misfires at revs and P0315 comes up. In order to do a relearn is it necessary to have foot on the brake......its a bit hard in a boat with no brakes

  10. #10
    Lifetime Member hquick's Avatar
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    Yes....foot on brake is necessary.
    I guess you can just ground that pin in the PCM....if you know which it is.
    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

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