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  1. Maybe if there's no activity on that pin the...

    Maybe if there's no activity on that pin the modules default to ON, so that if that input is lost it won't die while driving? Dunno. Plausible though. Kind of like expecting RAP to function when you...
  2. I don't know. If you really need an answer I...

    I don't know. If you really need an answer I guess you can try to contact a GM engineer. Personally I would connect all the IGN/BAT wires shown in the diagrams and see what happens.

    That switched...
  3. X1 pin 19 is labeled in the factory diagrams as...

    X1 pin 19 is labeled in the factory diagrams as 'Data Communications' from the BCM, but that is actually a plain old switched 12v wire. Hot with IGN on.
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    http://www.vin-decoder.org/details?vin=1GCEC14V04Z...

    http://www.vin-decoder.org/details?vin=1GCEC14V04Z319909

    So go look up which Service Number works with that year/make/model/engine/trans/whatever else might affect it. Most online parts catalogs...
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    Use whichever Service Number matches the VIN/OS...

    Use whichever Service Number matches the VIN/OS you are planning to use.
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    Pretty sure I don't have a trans issue, it's...

    Pretty sure I don't have a trans issue, it's still able to complete the WOT 1-2 in .3 seconds - and I increased the shift time from 0 to .250 and made the 1-2 shift go from ~1s to .3s. If the shift...
  7. Sure you can, but you have to do a write-entire...

    Sure you can, but you have to do a write-entire with one of your old files that doesn't have the custom OS applied. Don't do a write-entire unless you have to, it's more risky than a normal...
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    Well my magic trans settings all of a sudden...

    Well my magic trans settings all of a sudden reverted to the long ~1second 1-2 shifts for no reason I can figure. Timing was still being pulled to -19* or so. It did this out of the blue, working on...
  9. I would do the 2-bar OS first. After you change...

    I would do the 2-bar OS first. After you change you can't use any of your previous files if you're hunting down a problem, best to get that out of the way now.
  10. You can leave the WBs in all the time, BUT, they...

    You can leave the WBs in all the time, BUT, they must be powered up and operating. Running the engine with the sensor installed and the gauge/controller switched off will kill the sensor right quick...
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    EVAP purge? Hard to say without knowing what...

    EVAP purge? Hard to say without knowing what components are in use in this 'my car' you mention.
  12. I thought the 0334 worked with any GM that needs...

    I thought the 0334 worked with any GM that needs the CANDi module, and that's a whole bunch of stuff, but not everything, starting in 2005ish?
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    The Service Number only refers to the hardware...

    The Service Number only refers to the hardware inside, the software loaded into it is completely separate. The Part Number, and the 4-letter calibration code (YMUM, YNBF, etc), describe the base OS &...
  14. Anybody else ever had to do intake gaskets (which...

    Anybody else ever had to do intake gaskets (which requires pushrod removal) on a high mileage, varnished-up 3100/3400 V6? Those were terrible about lifters sticking after being worked on and hanging...
  15. Those are CNG injectors, even the not-fake ones...

    Those are CNG injectors, even the not-fake ones are going to give you endless problems.
  16. Is that one lifter just locked solid all the way...

    Is that one lifter just locked solid all the way at the top of the plunger's travel? That's all I could see causing it other than somebody putting in wrong parts (like from a different application).
  17. The DOD lifters can't fail by going taller than...

    The DOD lifters can't fail by going taller than all the way up, they only fail by going shorter. Even if the internals broke and the plunger were free to go up beyond the normal height it would only...
  18. I just went back and checked the dates, I didn't...

    I just went back and checked the dates, I didn't find 4.4.4 for 2 whole months after it was released.

    I haven't found any way to extract the version number without running the installer, 'file...
  19. I've mentioned this before, it's not unreasonable...

    I've mentioned this before, it's not unreasonable to expect the version right there in the filename. It's a piece of software. This is how filenames work, the version goes right there so you can see...
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    I'm sure there's youtube videos that will tell...

    I'm sure there's youtube videos that will tell you exactly which part to replace. There's youtube DIY-zero-dollar solution for every problem these days.
  21. If you set the Units on the VE table to show...

    If you set the Units on the VE table to show 'Percent (%)', you get numbers like 2000. Set units to 'Number ()' the same cell is 20. If you set it to Percent and put in 20 you've got 100x less fuel....
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    It's a Class2 serial (or CANBUS) message. The...

    It's a Class2 serial (or CANBUS) message. The little box in the video below enables those BCM functions along with a bunch of other useful stuff.

    https://www.youtube.com/watch?v=vXnBMG-axm4
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    Brian, what year/platform did the LQ4 PCM come...

    Brian, what year/platform did the LQ4 PCM come from? Any reason you can't post the two files so there's something to look at? Compare the 4.8 & 6.0 files and see if there are differences in the...
  24. You can easily plug the TB hole with a piece of...

    You can easily plug the TB hole with a piece of lead shot.
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    x2 please post the file. Some DTCs are "special"...

    x2 please post the file. Some DTCs are "special" and are difficult to disable, can't tell if that's what you're running into without something to look at.

    Actually, post the most recent file you...
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