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Thread: Diesel GM 16147609 TCM Code BACX ??

  1. #1
    Carb and Points!
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    Diesel GM 16147609 TCM Code BACX ??

    GM 16147609 TCM Code BACX

    Like to know how to

    change shift points,
    the Diesel engine speed sensor how many pulses etc how can I pick it up from an older late 70's 454 gas engine.

    Anyone have bench wiring so I can bench test this TCM?


    Thanks.


  2. #2
    Fuel Injected! brian617's Avatar
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    As far as I know there is zero support for that TCM, barely any FREE support for the PCM in the EFI diesels that followed.
    89 K1500 Scottsdale 5.7L 5spd 3:42

    Build specs: 97 4 bolt main block 350ci, Eagle rotating assembly with flat tops and 4 valve reliefs, Dart 165cc/67cc Iron Eagle heads, Manely SS valves and springs 110lbs seat @1.7, GM Ram Jet cam 196/206 @.50 .431/.451, stock intake and throttle body, heads and intake gasket matched, Delco EP377 fuel pump @ 22 psi, 427 PCM.

  3. #3
    Electronic Ignition!
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    TunerCat supports the 16147609 TCM. Its mask $A6. See the listing here:

    http://www.tunercat.com/tnr_desc/ecm_sup.html

    So with the usual chip reading and burning tools, you can recalibrate it.

    -Scott

  4. #4
    Fuel Injected!
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    Most that I've seen who even swapped one in eventually ditched it and went with an opti-shift. And if I'm not mistaken, that TCM will only work with the 91-93 4l80e that didn't use a vssb for the speedo(both speed sensors went straight to the controller, even 4x4's had a output reluctor 7nlike 94+), only worked with the early pcs that required a "cleaning cycle", and didn't work well with 4x4's in 4low. These are all reason's why I've seen people ditch them on diesel's(I'm on a diesel forum with mostly 6.5's/6.2's). I know my neighbor asked me to look into helping him swap a 4l80e into his 88, and it looks like we'll be going with a 7427 in it.
    1995 GMC K2500 SUBURBAN 2001 LB7 DURAMAX/ALLISON swap, mostly stock, tuned by me with EFILive

    1999 Tahoe 2 door 2X4, 5.7l with 0411 swap, and marine intake

  5. #5
    Fuel Injected! brian617's Avatar
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    That's interesting, thanks. Its a shame those TCMs are so hard to find, I have a manual pump 6.5 that needs one.

    I managed to reprogram the shift points and TCC lockup with the 6.5 PCM, but there are underlying issues with the manual pump conversion and TPS problems.
    89 K1500 Scottsdale 5.7L 5spd 3:42

    Build specs: 97 4 bolt main block 350ci, Eagle rotating assembly with flat tops and 4 valve reliefs, Dart 165cc/67cc Iron Eagle heads, Manely SS valves and springs 110lbs seat @1.7, GM Ram Jet cam 196/206 @.50 .431/.451, stock intake and throttle body, heads and intake gasket matched, Delco EP377 fuel pump @ 22 psi, 427 PCM.

  6. #6
    Carb and Points!
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    Will Locate my DIP Adapter for my device programmer and dump the Eprom.. Been a long time since i played with DIP Packages mostly ICSP..


  7. #7
    Carb and Points!
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    Cracked Open the TCU..






  8. #8
    Fuel Injected!
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    Hello, thanks for the pics. I have never worked on one of those TCM's. Can you take a pic of the connector? Also please post the BACX 27128 bin file. If there is a repository somewhere of these TCM's bin files I would appreciate a link. :)

    Also, maybe we should start a post of all of our prom programmers, I haven't seen one like yours, looks nice.
    -Carl

  9. #9
    Carb and Points!
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    Once i get it all working correctly i will do a write up on my blog www.stevenrhine.com and post link to all details once it is done.

    I did get me some connectors at the junk yard today to make a bench test rig.. Sadly the same TCM someone took the blue connectors and smashed the box and PCB..

    I learned that misc connectors are .50ea at the junk yard No to bad!

    But a little file work i got 2 universal connectors +a few others.. Will be making me a OBD1 Test Harness..



    I Got 2 Spare DRAC's..


    I also got a GAS Cluster..


    Proper 7.4L Radiator and Schrod... 34X19 4 Core..


    They had what looked like a 5.7 34X17 2 Core in there with a 19" diesel shroud and no side mounts mounts tank was cracked in 2 spots.


    Hard to see.. will try and take more photos before i return the core..



    I had a long day.. have to get some universal hoses and should not leak coolant. With trans wired for manual shift should be able to use i on short runs. All radiator mounts and bolts are on including bottom rubbers....


    PLEASE NOTE: Not My Conversion I bought this thing cheap for a farm truck and this thing is a wiring mess and budgies all over.. I will show a photo of upper coolant hose wow how many splices in the morning!!
    Right now i need to get visible issues done.. engine seems strong.. but a filthy mess..




    ONe of my friends has detail ramps and pressure stram cleaner gonna go at it with solvent shortly.
    Last edited by Contract_Pilot; 3 Weeks Ago at 09:03 PM.

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