Mine don't. Its just more responsive. The responce is way better but not bad

 

Get a converter.

 

That makes no sense whatsoever. It's an electronic computer, there is no reason it would take time for a setting to change from on to off.

 

As to the topic of this thread , I have also experienced this .

Bieng the middle man with my HPT software , i was helping my friend tune his 2007.5 2500HD LY6 6.0 and 6L90E . All stock no mods just tune only at the moment . One of my good friends tuning it

The truck after the tune ran great , we were very happy , but he , Like the original poster , wanted to be able to power brake the truck a little , hence part of reason why he wanted it tuned .

So after loading the tune and driving around awhile , happy with the shifting and better performance , we stopped and tried power braking it , it would start to , then stop and go again . Hmmm wierd , tried it again , both pedals to the floor and it just felt like it had pulled a ton of timing till he let off the brake .

I went into the tune and found a value in the trans table that I felt was causing the problem , turned it off and reloaded the tune , seemed to fix it .
But my friend says it again sometimes won't power brake , so something is still retarding the timing when he tries , i have more tinkering to do , it's weird .

I'll take a screen shot of what I changed for you to try as soon as I get on my laptop , on my phone now .

 

Ok I appreciate it

 

How do these tables look in your tune ? Anyway for you to tell ?

They should look similar to these under torque managent .

 

I tried looking but the option to view or adjust anything is locked.

 

Once my friend is back in town we will relog the truck. Driving it harder this time and also try to burn out. That should give them better information. And I have full faith they can get it worked out they are really good. On the first log we just drove around and did one full throttle run. And I did not tell them I wanted to burn out either. I don't know much about tuning and just thought there was a way to turn torque management down or off and that was it. I didn't know there were so many adjustments. So with the somewhat week first data log and only having a muffler and MIT on the truck they probably just tuned it to be more responsive and shift better and that was spot on really happy with that.

 

The code in the glove box shows the truck to have 3.08 gears. I can't believe they did that in a 4x4

 

On the Shift Torque Factor you can change that table from 1.000 to .5000 and will give it and quicker firmer shift.