I'm new to this tuning. so any help is appreciated. the os# is 24235341 in tcm. I done installed trans. removed wires at trans connector k and v are running front speed sensor. move brown wire from u to s. moved wire in tcm 45 to 26 for speed sensor. I tried seg. swap from a 08 express 4.8 with 4l80e in it but then I had loss of comm with tcm and prnd shows 1st gear all the time. any help is appreciated thanks head of time.