[v84u2nv]

hey guys newbie here 1st post here it goes allison tech ques i put a allison 1k behind a 6.0 gas motor i know i know lol its a 2003 trans. my truck is a 2002 gmc 4x4 the only problem i have is no wide open throttle . it shifts the same spot same time every time no matter where my foot is i cant read the tps on my scanner it dosnt show anything with any scanner i have yes it can show codes n data just not the tps????? will be a great set up if i can get that straight any help will be much apreciated thank you