justa5.3

Hello, I am new to ls1tech and was hoping someone out there could help me with this problem. I own a 2008 Chevy Silverado with a 5.3L and I am in the process of tuning it with HP Tuners. The problem is the truck is running fat. The wide band reads a high 11 low 12 with moderate acceleration. When I try and adjust the VE table to lean it out, something in the truck compensates for it and corrects itself. The PE table as set at 1 throughout the whole board.

69LT1Bird

iTrader: (1)

You need to supply more info. Is truck stock? Stock injectors? Are you in OL tuning? Post a tune and log. You may be better off on the HP Tuners forum.

cam

iTrader: (9)

Do you have AFM and VVT? If so lots of uniqueness's to the tune. Cant say i know much more than that unfortunately but just tweaking PE tables and go wont work for such an equipped engine. Research is your friend