Printable View
As the thread states, is there a wideband tuning write-up/guide out there that I'm not seeing??? I just installed the LC-1 and was wondering if the other "tuning guide" could still be followed. The reason I ask is bcuz people talk about having the pcm in open loop all the time with the wideband and I believe I recall seeing a post about the LTFT's not being relevant.
And this question pertains to V6, supercharged if it matters.
most of what you've read is for ls1's...I use a custom histo that converts ltfts to a multiplyable % that I can multiply against my maf or ifr table to get my trims in line. Then use my wideband & a custom afr commanded vs. actual histogram to dial in wot fueling.
So there is no use of WB for tuning rather then WOT?
is there the way to get Fuel Trims in line using WB?
Just look at foffs post above. He uses the histograms to "dial in the lt's". You read the WB the same as you would the NB and adjust from there with maf or ifr.Quote:
Originally Posted by iGoRa
Could you share the custom histograms you use with us?Quote:
Originally Posted by foff667
Thanks
please
Okay foff, are you gonna post up a wideband tuning guide??? C'mon man, I'm ready to utilize your expertise with the V6's:worship:
im just an ameteur, so dont quote meQuote:
Originally Posted by iGoRa
1) no, you also use WB to make sure your stoichiometric (14.7:1) is right.
2) i dont believe so, you just make sure youre running the right AFR with the WB, then you dial in the trims
(#2 is over my head though)
I think I just figured out how to dial VE Table with WB. Fuel trims went closer to 0 after MAF calibration.
of course they did