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Yea i have heard and experienced the same thing. I had an 04 Chevy 6.0 before the truck I have now and I bought it brand new and couldnt tune in High speed at all so I know it wasnt the tune.

Sorry its taken me till now to post, Ive been away for work. My truck is the GM grey met color 4 dr long bed with black wheels and tinted windows.

Yes, it was the desired boost and the target vane position tables that I messed with. I had to smooth out the vane position table cause it was too aggressive!!

No I took the tune that you sent me and tweaked it some more and the truck runs great now!! Thanks again!!

:thumb_yello: Thx for the help!!

8502

Here is my current tune. Any advise would be great. Thx guys.

I had this same problem when I first tried to do my download. I have a 2005 LLY too and I learned that hard way after i tried several times to do the same thing you are. Neither EFI Live or the GM...

Is there any way to tune out the "turbo bark" that is associated with letting off the pedal? I am running a mild 50hp tune that gets good fuel milage and doesn't over load the tranny, and provides...

Awesome guys, thanks for the great support and quick responses!!! Worked great and working great!!

Joecar I'm not home now but will try tordnes fix and if not I'll post some screenshots!! Thx guys!!!

Awesome Tordne thx! I try it as soon as I get home and see what happens!!

Well that's the problem when intry and flash the firmware from the 7.5 it tells me it can't do that and when I try and go through exploerer it says firmware is ok and doesn't give me the option to...

I followed your instructions that you posted in an earlier posting. So it should have been 2.6.2 and 2.6.24

I'm not home now but I know it's the 2.06.8 bootBlock and it's the .35 firmware

That's what I thought but the explorer says that the firmware is ok. I tried to reflash the firmware and it won't let me!

I was hoping tha someone could fwd me those emails too please! I followed the instructions in this thread and everything went fine till it tried to reload. Now the two amber lights r flashing and if...

Email sent!!!