why do I need more fuel
 

I'm currently running Na, because I'm reduing my setup and piston rings, still waiting fir parts. anyways I took the turbo off, and the car runs like ---- with the original setting, at 6 psi b16 95 civic,with afc/450cc/255lph setting at -40% across idle -25%, but I was always running lean, now I adjusted it to -28% across it runs smooth, but every now and then it goes to rich, and I was at about 120 mph last light the a/f drop to lean, car lot power, and throw CEL, I turn the ignition while rolling turn it back on it resets, but do it some more times, and also right before vtec engage the car drop power a little goes to lean, and then launches with the vtec, like when using nitros, kinda cool but kinda wierd.

Re:why do I need more fuel
 

list all afc settings, throttle pos, hi/lo's, sensors, 06/06? fuel %'s, all of it.. somethin is messed

-25%is REALLY RICH for 450cc's.