i just installed a mini me and it works great when i unplug the o2 sensor. i just put it in new and all i can think of is that its running tooo rich and throwing the o2 sensor off. the exhaust is all black sooty at the exhaust and it hesitates around 2000-3000 rpm until the o2 sensor throws the check engine light on then its the champ. i am still running the 91 computer without the vtec for now and its only getting around 14mpg. i have a dh racing head throttle body intake clutch flywheel pressure plate and they work good i'm just trying to get the fuel problem fixed any help would be appreciated,thx

 

ok went to e-check and it failed too much non burnt fuel in system. i'm figuring injectors so i ordered them and will post update at next e-check. i will try without a new pressure regulator first. any input would be appreciated,thx