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  1. Also 6 credits is unlimited for the model year...

    Also 6 credits is unlimited for the model year only (and usually pre ~2008), not all model years. So 2002 TrailBlazer I6 vs 2003 TrailBlazer I6 are both 6 credits each. Same for the I6 vs V8s, so an...
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    Sounds like limp mode when the ECM OS and TCM OS...

    Sounds like limp mode when the ECM OS and TCM OS don't align and don't play nicely with each other.

    Need more info on setup, is this a factory application and do the ECM+TCM OS' align?
  3. GM changed the TAC from 05 -> 06, so in addition...

    GM changed the TAC from 05 -> 06, so in addition to doing what blindsquirrel said, using an 03 calibration with 05 or 06 hardware is guaranteed to cause throttle control issues.

    Easiest thing to...
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    What base T42 80E file did you use? I did a quick...

    What base T42 80E file did you use? I did a quick compare with the file blindsquirrel posted above and see a handful of differences, especially under the General -> Configuration setting (NSBU and...
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    DOH! Yea you're right, my bad. No, just...

    DOH! Yea you're right, my bad.



    No, just asking for more headaches putting an E40 into a platform (Silverado) that never used it in any generation. Went straight from P59 -> E38.



    100%...
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    Follow the screenshot blindsquirel posted. Like 2...

    Follow the screenshot blindsquirel posted. Like 2 clicks to get everything on the engine side copied over.

    If you have a 6L80, as long as you get the ECM side updated, it will send the correct...
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    Correct way, pull the motor, swap crank...

    Correct way, pull the motor, swap crank reluctors, put a Gen IV timing cover and cam reluctor setup so it's actually a 58x/4x motor and will work natively with the E38 in the 08 truck.

    Cheap way,...
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    09 is when GM went to the internal MLPS switch on...

    09 is when GM went to the internal MLPS switch on the 60Es, you'll need to adjust the tune so it uses the correct, external one that your 05 transmission will have.

    Assuming you're also using the...
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    If you can't sort it out, send me a PM and I can...

    If you can't sort it out, send me a PM and I can try to help. May be easiest to just buy a TCM with the correct OS/segment swap stuff done, then you can just install, read it, and start tuning.
    ...
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    You need to use an 06/07 Suburban or Silverado...

    You need to use an 06/07 Suburban or Silverado 80E TCM OS 24235341 and Write Entire it to your TCM.

    Basically for TBSS 4L80E swap:
    06 - use 06/07 Suburban or Silverado 80E TCM OS 24235341, can...
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    Yea they're pretty quiet engines in factory form!...

    Yea they're pretty quiet engines in factory form! And yes, lots of torque down low thanks to moving the exhaust cam around, but the HP doesnt come in until you rev it up a bit and let it breathe.
    ...
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    Base idle table at 400, 600, 800rpm cells is set...

    Base idle table at 400, 600, 800rpm cells is set to 8* spark.
    ECT correction table has a few degrees that decrease as ECT increases.

    Warm idle RPM is 595, you're getting close to that when ECT...
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    Post your tune, even if stock please! Timing...

    Post your tune, even if stock please!

    Timing below 750 rpms will be set in the tune, without a tune file we can't compare what the log says with what the PCM has programmed.

    On my 02 (early...
  14. I've tried replacing a narrowband with a wideband...

    I've tried replacing a narrowband with a wideband and wiring it up, never got it to work properly without the ECM throwing additional O2 codes. Probably not a worthwhile exercise to try it, but your...
  15. Sorry to be a downer, here's my .02 from reading...

    Sorry to be a downer, here's my .02 from reading this thread: you're going to be happier and better off purchasing a tune from a professional shop.

    You'll need to dedicate many hours...
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    Post your tune and codes. Did you do a segment...

    Post your tune and codes. Did you do a segment swap to an 80E segment or are you using a conversion harness with the factory 60E segment?
  17. You need to swap back to a non-FF OS to do the...

    You need to swap back to a non-FF OS to do the segment swap, a common 04 OS is 12587603 that's used in trucks and SUVs in both 60E and 80E configurations.
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    For P01/P59, go to System. Note the value of...

    For P01/P59, go to System. Note the value of Platform Type (e.g. GMT800), then open the System Options table. Using the value of Platform Type, check what options are enabled/disabled in the System...
  19. Yes, you'll need to tune it for your engine combo...

    Yes, you'll need to tune it for your engine combo as I can't recall any LS3 + E67 factory vehicle combos.

    What I don't know is if there will be other issues, like do you have an automatic trans...
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    Use your existing harness and ECM, just swap the...

    Use your existing harness and ECM, just swap the engine out. Same reluctor setup, so your stock ECM will run it no problem. Use the comparison function in VCM Editor and copy over the VVE, Spark, and...
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    True, the TCBMSport module is standalone BUT we...

    True, the TCBMSport module is standalone BUT we don't know if/how/why TMBSport programmed the T43 module the way it is now.

    Here's my thoughts on this project;
    1. You have an Express Van and the...
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    Stepping back a bit and rereading your original...

    Stepping back a bit and rereading your original thread, is this all in an 09 Express Van? Other than the Transmission swap and 4x4 additions, is the rest of the vehicle stock? If so, I'm not sure...
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    Not a secret, Shrek beat me to it and yes, HPT...

    Not a secret, Shrek beat me to it and yes, HPT only displays VIN for ECM. Thanks for confirming you can't see your T42 VIN.

    Yes changing the ECM VIN or OS will break HPTuners licensing model,...
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    T42s do store the VIN, HPT just doesn't (usually)...

    T42s do store the VIN, HPT just doesn't (usually) care what it is. It's been a few years since I've tried to change a TCM VIN with HPTuners, so not sure it's possible or not. I do know you can do it...
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    If swapping the Transmission, segment swap BOTH...

    If swapping the Transmission, segment swap BOTH the Transmission and Transmission Diagnostic segments. You may need/want to tune the Speedometer segment as well, but in most circumstances don't need...
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