trannie slipping after injector install..

[Younger1993]

After I installed my 190s last weekend, and after some WOT runs, my trans feels like it is slipping going into second; my tuning is set to shift at 3800 WOT, but it is showing up at 4100k on the tachometer once it finally hits into second, and I did some more testing, and found that it is hesitant to shift into second and even one time i felt it hang real bad shifting into second. I called suncoast today, and I spoke to a troubled angry man who said the trans would throw codes even if it slipped the slightest bit, my SCT shows 0 codes, but I know I have been feeling it less solid on shifts...am I going crazy?

[AKHILF574]

Your not going crazy. My tranny was doing the same thing and a couple weeks later it wouldn't even move anymore. The sct hides codes. I pulled the sct completely off and drove the truck around and took it to the dealership and they ran it for codes and there came up then.

[20046.0]

Could this be the "shift fade" I've heard of? My truck sometimes while WOT will shift it will feel like 2 soft shifts.