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  1. Another odd thing, the fuel trims rail at +39.x%...

    Another odd thing, the fuel trims rail at +39.x% when the RPM is stable. Then when the spark changes they go back to about -0.2% and swing back to +39.

    I only saw a few times where I saw the trims...
  2. Mainly, yes. Some other areas were flat, but I...

    Mainly, yes. Some other areas were flat, but I lost speed too fast to really see.

    I was thinking maybe going in and out of DFCO, but with unlocked TCC it should disable below 1400.
  3. Well, tried to bump up rolling idle and put the...

    Well, tried to bump up rolling idle and put the idle desired RPM in and max I ever saw was 896 RPM. It maxed by 15 MPH and does not correlate to the table at all.
  4. Rolling Idle Surge TCC Unlocked - L83

    All,

    So this really isn't a major issue as the TCC is nearly locked all the time, but on the way out in the AM with a cold transmission and the TCC lock delayed as a result of being cold I get...
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    8L90 TCC Apply Ramp Question

    I am trying to solve an annoyance.

    When I am at high load and the TCC is unlocked then starts to ramp up pressure to lock it, it hits too hard. I would like to "ride it out" a little more before...
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    I got my data 2nd hand from another user who sent...

    I got my data 2nd hand from another user who sent me an ASA tune with the injectors.

    Curious where the other data is from. I can say the values I used fixed any transient or odd fueling issues I...
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    Sorry cam retard not spark retard.

    Sorry cam retard not spark retard.
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    I got a lot better control of mine messing with...

    I got a lot better control of mine messing with the VVT timing and also how much retard to actually allow.
  9. I wonder if it could be exhaust leak or...

    I wonder if it could be exhaust leak or something?

    Try to switch the WB over to the other side and see if you get similar results. I still question going that rich, unless the WB is off. Just...
  10. Where is your WB? B1 and B2 have drastically...

    Where is your WB? B1 and B2 have drastically different mV readings at WOT, curious if they are both hooked up. If they are, swap WB from one bank to the other to see. It is possible one side is...
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    Good point on the gear ratios, thanks!

    Good point on the gear ratios, thanks!
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    I still have mine locked at cruising speeds. I...

    I still have mine locked at cruising speeds. I tweaked a few speeds and the apply pressure and really love how it shifts and drives. It is amazing what GM didn’t do from the factory, could have a...
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    I have all factory TM enabled still. The only...

    I have all factory TM enabled still. The only thing I changed for torque limits were the gears in the ECM calibration that limited throttle.

    I tried some unlocked tests, it is slower by several...
  14. I typically will export to Excel and overlap data...

    I typically will export to Excel and overlap data from runs. You can look at speed vs. time as long as the road and conditions are the same and see which accelerates faster. You can also create a...
  15. Post up some logs too if you can

    Post up some logs too if you can
  16. I would overlay your speed graphs in Excel. Hard...

    I would overlay your speed graphs in Excel. Hard to believe an NA car makes good power in low 11’s AFR.
  17. Ah, sorry I thought that was all one file. Not...

    Ah, sorry I thought that was all one file. Not having a space threw me off :D

    Still curious how low you have gone. With a heavy truck like that, 22 deg sounds a tad high. I think your timing...
  18. I had issues on mine with connection. Even the...

    I had issues on mine with connection. Even the slightest loose connection screwed me up. I also have to start the scanner in a certain order it seems to get everything to talk.

    To be honest I...
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    I was looking for tunes the other day. I wanted...

    I was looking for tunes the other day. I wanted to see the factory calibration for the 275/60/20 tires. Thinking about putting those on my truck when I need some tires.

    So if you have those tires...
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    You have quite a bit of timing in there and a...

    You have quite a bit of timing in there and a good dip at 4800. I never cared to run that high as the benefits were minimal vs. the risk of knock and unneeded stress.

    You are also commanded a lot...
  21. What are the mods? What are you looking for...

    What are the mods? What are you looking for feedback on?
  22. How much timing have you played with and what is...

    How much timing have you played with and what is the load it happens at? Are you entering enrichment when this happens at all or no?

    Post a log of it happening.
  23. You are calibrating the MAF to make it richer....

    You are calibrating the MAF to make it richer. That means you are telling it for a certain frequency you are getting more air. It isn't actually reporting more air.

    Look at the Hz as you changed...
  24. Fixed it, decreased the VVT vs ECT multiplier to...

    Fixed it, decreased the VVT vs ECT multiplier to less than 1.0 up to 68C ECT. It runs great cold now, just as well as when warm and no matter the load.
  25. I should have added I was just comparing for Gen...

    I should have added I was just comparing for Gen III stuff.

    I had a 230/232 112+4 and 236/244 110+4 (the grind was actually missed, supposed to be on a 112) and saw nothing WOT wise. I never...
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