TunerPro User Forum

Just a little added info, I swapped the fuel pedal and TAC module from the truck that the Computer came from as well

I have a 2003 1500hd lq4 6.0 4l80e 4x4, had pcm trouble but hav a 2wd 2006 gmc 4.8 4l60e parts truck. So I swapped the pcm, copied the tune from the original lq4 pcm to the new pcm and the truck is idling smooth, no misfires, BUT After a couple revs I’m restricted to 20% tps and the trans is not shi...