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Thread: E86B LML Fast Idle Enable

  1. #1
    Lifetime Member Mitco39's Avatar
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    Default E86B LML Fast Idle Enable

    I thought I had this figured out but its not working on a truck so I want to confirm what is needed to add this feature into the ECM.

    https://www.gmupfitter.com/publicat/...82a_081412.pdf


    The customer got the update to both the ECM and BCM and it was working. I flashed in my original file without the fast idle but changed the GMLAN Fast Idle to enable (all I figured I had to do) however after the flash the fast idle ceased to work.

    The truck I am working with is a 2015 with a 0477 OS.


    Thanks in Advance.

  2. #2
    Lifetime Member GMC-2002-Dmax's Avatar
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    E-Brake Set, Cruise turned "ON", in Park

    Click the SET Button, should flash fast idle across the DIC and then elevate the idle
    www.ridgerunnerdieselperformance.com

    EMAIL ME

    Tuner of many, many Duramax and Cummins Diesels.


  3. #3
    Lifetime Member Mitco39's Avatar
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    Quote Originally Posted by GMC-2002-Dmax View Post
    E-Brake Set, Cruise turned "ON", in Park

    Click the SET Button, should flash fast idle across the DIC and then elevate the idle
    With the E86B the file flashed in directly from GM works. The file I flash in with the PTO enabled does not work. I know it would work on a 11-14 truck.

  4. #4
    Lifetime Member Road's Avatar
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    Quote Originally Posted by GMC-2002-Dmax View Post
    E-Brake Set, Cruise turned "ON", in Park

    Click the SET Button, should flash fast idle across the DIC and then elevate the idle
    Tony
    Will AC Delco subscription allow calling in and getting a VCI number to flash the High Idle?

  5. #5
    Lifetime Member GMC-2002-Dmax's Avatar
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    DO A SEGMENT SWAP.

    Unless there is some other back end switch a System segment swap with the correct one should work.
    www.ridgerunnerdieselperformance.com

    EMAIL ME

    Tuner of many, many Duramax and Cummins Diesels.


  6. #6
    Lifetime Member GMC-2002-Dmax's Avatar
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    Quote Originally Posted by Road View Post
    Tony
    Will AC Delco subscription allow calling in and getting a VCI number to flash the High Idle?
    I have a Subscription, and yes they can make a change for you to the vehicle build according to TIS when you look up the build and or update it.

    Its a specific BCM and ECM Update paired to work, You can use any UF3 High Idle VIN# and get the correct segment update to the BCM, the issue is TIS writes the VIN# to the BCM for the target vehicle requested and not the current VIN# if it lacks UF3 from the factory, once the VIN# in the BCM Changes it locks the radio out !!!

    I requested TIS Update my 2012 Denali and mine is now active, BT Diesel works can also do the BCM Update and add a ton of cools stuff as well
    www.ridgerunnerdieselperformance.com

    EMAIL ME

    Tuner of many, many Duramax and Cummins Diesels.


  7. #7
    Lifetime Member Road's Avatar
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    Quote Originally Posted by GMC-2002-Dmax View Post
    DO A SEGMENT SWAP.

    Unless there is some other back end switch a System segment swap with the correct one should work.
    You have the base files for this?

  8. #8
    Lifetime Member GMC-2002-Dmax's Avatar
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    Still need the BCM updated, no way around it.

    But Yes, I have all of the LML Base Files for all 11-16 model LML and LGH.

    Even some frankenstein ones I made for special trucks
    www.ridgerunnerdieselperformance.com

    EMAIL ME

    Tuner of many, many Duramax and Cummins Diesels.


  9. #9
    Lifetime Member Road's Avatar
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    Quote Originally Posted by GMC-2002-Dmax View Post
    Still need the BCM updated, no way around it.

    But Yes, I have all of the LML Base Files for all 11-16 model LML and LGH.

    Even some frankenstein ones I made for special trucks
    I think this truck Mitch is working on has the BCM update he needs a base ecm file for it

  10. #10
    Lifetime Member GMC-2002-Dmax's Avatar
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    Email me the VIN # and I will send you the correct TIS File Mitch !
    www.ridgerunnerdieselperformance.com

    EMAIL ME

    Tuner of many, many Duramax and Cummins Diesels.


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