Hi I have two problems that I have been trying to figure out in my tune and dont know what to do.
I have been doing some VE tuning to get the part throttle fuel trims to where they should be. WOT a/f is right where it needs to be. The original whipple tune had the fuel trims taking out a bunch of fuel so I took some out in the tune and wrote calibration. Then I did the reset adaptives and took it for a data log test drive and it was still negative but closer so I did the same changes but slightly less and it was closer. Then I took it out again and it was even closer to perfect so I just did some tiny alterations here and there thinking it would get me perfect with fuel trims around -2 to -3 all around which I hear is better than being right at 0 or positive. The problem was that when I wrote this new calibration thinking it would get me right where I need to be, all of a sudden the fuel trims were WAYYYYY off. Im talking about plus 10 to plus 15!! All of a sudden the car is thinking its way lean and adding all types of fuel. Even did a short wot run and it was almost a whole point leaner and showed 2-3 degrees of knock so I let off immediately.... Not knowing what could have happened, I went back to the previous tune that was almost perfect and went for a test drive and everything was still wayyyy lean. I dont understand what could have happened how could this be possible?
The second issue is a little less weird than the first but still puzzling... During medium throttle accelerating situations where the car may see small amounts of boost but not full throttle, when its time for the transmission to shift to the next gear, it does a really hard shift almost feels like someones rear ending you. Definitely cant be good for the transmission. I even tried swapping my stock tcm for a mopar performance one that I had and its the same maybe even worse. The problem doesnt exist at light throttle and full throttle only medium amounts... I tried turning trans torque management in the engine tab (ecm) back on and it might have helped a little but not much. I think it needs some sort of adjustment in the tune for the tcm.