I recently finished upgrading my OS to 1 bar sd. After the upgrade i've finished tuning idle stit, ve, pe, and spark on my 99 silverado 5.3 Liter. But now i want to run it in CLSD. ANyone know what i have to reenable. Do i leave my LTFT/STFT disabled or do i reenable them. ANy advice would be great. Thanks.