How to log VE ltft

[84lsvette]

I have followed all of the internet tutorials and I get the histogram going in the scanner and it always logs 0's all over the board. this is after driving 40 minutes and nothing........I have the fuel learn enabled and cleared the old learned trims....what am I missing here? I am tuning in SDOL. Just wondering what I don't have on that I need to so I can get these logged and set up my VE table in editor.

[84lsvette]

little more info. it is a 5.3 with ls6 cam and springs and ls1 intake, 60 lb injectors (future turbo). Does the LTFT only work when you have the narrow band O2 sensors hooked up? Is there something I need to do to connect my wideband output to help it populate this table? I have it set to where it is loggin my wideband perfectly in the gauges, table, etc.

[onspeed]

There are no fuel trim adjustments in open loop... that's the whole point of open loop. If you have a WBO2, I would tune VE table using that rather than with fuel trims.