i have a little issue when shifting 3-4 gear i would shift at 6k (rev lim set at 6700)and when i get back on it it will sputter like spark blow out across all 4 cly and lots of black smoke out the exhaust and its only going from 3-4 and i made a mistake and said it was 18 on the wideband but its really 10.0 or lower and i have it logged also on my laptop and if i do a slow shift to 4th and get on it,its fine so i have no clue and its been doing it for awhile and the plugs are fine
