STFT & LTFT question

[jmakado]

i'll keep it simple so i don't confuse the situation. if more info is needed just lemme know and i'll post it.
the setup:97 gsx, walbro190, 560's, afc II
the problem. i have my STFT pretty good when i'm cruising. my LTFT are flaky however. they are at -8 when i am at any throttle lower than 10%???

they are at 0% at EXACTLY 10% or above....what the hell? also, i can't get my idle (750rpm) LTFT or STFT to change? help please!!!

[ImolaFem]

You have a safc II, you cannot adjust dead time and global fuel settings, so you'll just have to stick with your ltfts as they are...the stfts change so much its really the ltfts you want to get right....but like I said <shrug>

[Hal]

you have it backwards

In general you check LTFT while cruising and STFT @ idle, but only after you have stabilized your LTFT's

Hal

[jmakado]

what's the deal with the LTFT being different below 10% throttle? at anything above 10% both the STFT and LTFT are pretty good i think. thanks....

[KeltonDSMer]

Well, you have a lot of fuel right now. I bet you are getting 0% trims at over 10% throttle because your motor is actually able to burn the gas. Below 10% throttle, I bet you are pretty rich, and the computer takes out fuel in the long run.