okay to start off i have a 90
civic dx
hatch it has a d16y8 swap in it when i go to start it it starts but very slugish im not getting any codes it has a p75 chipped for vtec no knock or o2 sensor ,and launch control (2 step) its been converted to 0bd1 and has had the dpfi to mpfi cinversion done as soon as i step on the gas it stalls everytime if i can please just get some help im at my wits end