Ive been running and perfecting my speed density tune for a few weeks now.I have been able to have it run perfect except for this one problem.The car will drive normal just regular driving and during a pull for logging.If i try to do some hard driving with shifting gears fast it hits a wall,not fuel cut more like the car turned off or something.The strange thing is if i let off the gas a little and push it back down it keeps driving like normal.

Has any one experienced this before?

Things i already checked
1.Boost leak
2.Runs fine on Maf tune
3.Plugs,wires,and coils.

 

What is your Boost cut set to? To me it almost seems like you are overboosting.

 

Is it rpm specific? How is your kpa -.load set up ?

 

Im also having a similar problem, I lower the boost and added more fuel lower timing and still have the same problem

 

NLTS turned on?

Aaron

 

i disable nlts and it still does it... I also noticed it starts going lean no matter what amount of fuel i add and its at 16psi on stock 9 turbo 880cc injectors

 

Hrm... Well, I doubt its your issue, but async vs rpm and tps can sort tip in issues. Maybe a log and your Rom could help..

 

here is the ecuflash file, it wont let me load the evoscan

 

Nlts is off,and i havent tried lowering the boost yet bacause i have my boost cut load maxed with the 2x cut load.Ill try lowering the boost tonight to see if that helps but i figured with boost cut essentially off this wasnt the problem.