I want to apologize in advance for bothering you guys once again. Ive, searched beforehand but no luck. heres the deatails and I really appreciate the help in advance.
1999 Silverado 5.3
212/218 texas speed cam
headers
trailblazer SS intake swap, 90mm tb
the problem is I tuned it like all of the guides say to, cut the MAF off, reset trims, log, adjust the ve etc. Its very close now in the secondary table and running on just the map sensor it runs good, drives good and has plenty of power. Gets crappy gas mileage, 8-10. This same setup have knocked down 18-20 with the maf enabled.
I copied my secondary table over to my primary and smoothed it and them cut the MAF back on, my LT trims go to 24.2 after a couple minutes. I can change the ve table drastically and it does nothing. Also when I first stat the engine (warmed up every time) it goes lean to 22.2 to 1 afr and stays like that for a minutes and then the ltft start to kick in and it heads down to 14.8 - 15.2 afr.
its runs very good with the MAF on but I cant get the 24.2 trims to change for nothing. here a couple tune files. one is the beginning file and the other it one I added a bunch of fuel to part of the ve and I experienced no change. My afr never changes according to my wideband (what I mean is I get the same fueling no matter what ve changes I make to the primary)
maf tune attempt.hpt
maf tune attempt2.hpt