Cruz Lo

Question. 03GMC 5.3 228/588 cam

I have already tuned my VE with the narrowband O2s and gotten it pretty close.

I am about to order a wideband and....

If I tune the VE in open loop speed density with my wideband, using the % difference shown by the wideband to alter the VE.....

Then copy the adjusted VE table back into my tune, won't the LTFT just try to put the VE back where it was before?


Please comment. Thank you

TAQuickness

iTrader: (28)

Yup. Take a look at the SD tuning link in my sig. Walks you thru setting up your tune to prevent stuff like fuel trims and DFCO from interfering.

sroach20

iTrader: (31)

what software?

Randy WS6

iTrader: (69)

Yes, What software are using to tune with ? I use EFI-Live to auto VE . Very straight forward and easy to use. But you must have a WB to auto VE with. And with EFI Live you can wire your WB into the EFI software to tune with.

Cruz Lo

Sorry;

HP Tuners.

So I guess that I understand it correctly. In that case the Wide band becomes a check only?

Except for PE WOT tuning.

Thanks for the responses.

TAQuickness

iTrader: (28)

The wide band is definately for tuning. Once tuned you could use it for checking purposes.

If you check around in the HPT tutorials or help sections you should find the HPT specific version of the EFILive AutoVE tutorial. Ol' Bill has mad skills - ctrl+c, ctrl+v

Randy WS6

iTrader: (69)

In the EFI Live software, the WB is the controller ,and the NB O2's are turned off with the mass air. I have mine setup to run in semi OL ,witch uses the STFT to help control the fueling in SD mode. The car runs ten time better with the mass air deleted