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Thread: E38 5.3 LMG Crank relearn

  1. #1
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    Default E38 5.3 LMG Crank relearn

    my swap ( 2007 5.3 LMG/ 4L60E/BCM, underhood fusebox/'07 cluster and lots of the '07 harness into '97 Tahoe) is done, I had the first testdrives and only a few things have to be addressed.

    1.) If've got the crank relaern DTC but couldn't perform a crank relearn with the latest EFIlive software. All signals are there ( P/N switch, brake applied..) but the bidirectional control seems not to start. When I don't press the brake the "press brake" message is displayed if I do so it disappears but nothing happens. Is there anything else I have to do? I went through some crank relearn threads but nothing new on this side..

    2.) I have no tranny related DTC'S but the torque convertor clutch doesn't lock

    3.) the engine seems to have reduced power. On the last third of the gas pedal nothing changes, also no downshifts appear

    The only DTC'S I have are the crank relearn and the immobilizer key not programmed, that's all

    Any ideas in these topics?

    Harald

    Here are some info about my configuration:

    VIN 1GKEK13KXSJ731636
    Engine 5.3L Gen-IV
    Transmission 4L60/65/70E Auto
    PCM flash 2Mb
    Operating System 12605898
    Calibration 12605897
    OS ID NE
    Cal ID
    BCC YNAU
    OS Level
    Cal Level
    Cal file name 12605898.calz
    Cal file version 7.21
    Cal file date 06 August, 2008
    Operating System 12605898 $CC3371D5
    Engine Operation 12605905 $3E51C0B
    Engine Diagnostics 12610350 $B0E1976B
    Fuel System 12605942 $962EBEE2
    System 12605945 $1142D61F
    Speedometer 12605994 $11A879A5
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

  2. #2
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    Default

    crank relearn is done. It was my fault, after hitting the case relearn button I waited for something to happen. It's just a matter of tranny in P, footbrake applied and then after clicking on case relearn starting to rev up until about 4000rpm, then foot off the throttle and that's it.

    Sometimes things are all too easy.

    The torque converter not locking up is still there, I've got no DTC's from the tranny at all...
    Attached Files Attached Files
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

  3. #3
    Joe (Moderator) joecar's Avatar
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    Default

    Harald,

    For CASE relearn:
    - did you get the "stumble" at high rpm and did you immediately release the throttle...?
    - and then after rpm returned to idle, did you turn off the key and wait at least 15-30 seconds...?

    For the TCC:
    - check the wiring: the 4L60E has 2 TCC solenoids: TCC (enable) and TCC PWM (apply/control).
    - log GEAR, TCCMODE, TCCDC, TSTATE09/10/12/00/01/03 to see if the TCM is commanding the TCC or if the brake switch is inhibiting TCC apply.

    For reduced engine power:
    - log STATE03 to see if REP mode is active.

    Post your logs.

    Quote Originally Posted by harascho
    If nobody has done it before, somebody has to do it....
    Last edited by joecar; November 27th, 2008 at 09:40 AM.

  4. #4
    Senior Member
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    Default interesting stuff

    I was going through the TCM tunes and found when I modify the tire spec and try to save the file I recieve a range error. Here are the screenshots:
    Data for a 285/75/16 tire according to manufactor:






    cal file, TCM details:



    When I first open that .tun file and enter that section I see:



    and that:


    there must be a glitch somewhere, as soon as I correct the tire data I have a range error???
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

  5. #5
    EFILive Developer Site Admin Blacky's Avatar
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    Default

    Looks like the scaling on H0101 is messed up. I can reproduce the same fault here. I'm getting Ross to take a look at it now...
    Regards
    Paul
    Before asking for help, please read this.

  6. #6
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by joecar View Post
    Harald,

    For the TCC:
    - check the wiring: the 4L60E has 2 TCC solenoids: TCC (enable) and TCC PWM (apply/control).
    - log GEAR, TCCMODE, TCCDC, TSTATE09/10/12/00/01/03 to see if the TCM is commanding the TCC or if the brake switch is inhibiting TCC apply.
    Also check if you are getting misfires... the presence of misfires will inhibit TCC apply.

  7. #7
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    Default TCC solved another discovered

    TCM from 2007 4wd Tahoe OS 24235341 Calibration:24233141

    no downshifts when I hit the throttle, no TCC lockup.

    I changed the TCM tune to the one that came with the TCM its from a

    2007 2wd Suburban OS 24235341 Calibration 24235341

    This one makes the difference. I've got part throttle shifts, downshifts with more throttle, kickdown and also the TCC locks. Only difference to my old 1997 setup is that you barly feel the TCC lockup, its very smooth. Big drawback, the cal file is from a 2wd and my 4wd Tahoe doesn't shift at in low range with this tune. What could I do ?
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

  8. #8
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    Quote Originally Posted by Blacky View Post
    Looks like the scaling on H0101 is messed up. I can reproduce the same fault here. I'm getting Ross to take a look at it now...
    Regards
    Paul
    Reported this one to support 17th November. Only applies to specific cals. Others work ok. Basically the result is one or more cals cant be programmed at present.

    Cheers!

  9. #9
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    Default cal file 4L60E 4wd

    Then I need a different .cal file for a 2007 4l60E in a 4wd application OS 24235341

    Does anybody have something suitable?

    Thanks

    Harald
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

  10. #10
    Senior Member
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    Default news on that messed up scaling of H0101?

    Looks like the scaling on H0101 is messed up. I can reproduce the same fault here. I'm getting Ross to take a look at it now...
    Regards
    Paul

    Any news on this matter?
    If nobody has done it before, somebody has to do it....

    1997 Tahoe 2dr 4WD
    2002 Alfa Romeo Sportswagon 2.0 JTD
    1982 Deutz Intrac 2004A
    2003 friesian Horse " Henry"

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