[bandit86]

tried searching but I'll post this anyways.

did anyone modify their o2 sensor circuit to fool the car into running lean?

You can add a parallel high resistance divider cct, say 12Vfeeding 14kohm to 1kohm to ground. Inbetween the resistors there vill be 1 Volts with very little current availible (unless you hook it up backwards) and if this signal is tied into the o2 wire the ecu will see a richer condition and go about leaning it out. if you hook up a microswitch to the pedal, it'll automatically go back to normal at more then light throttle.

Other thing I got on my mind, how about running smaller fuel injectors at higher pressure? The end result should be better atomization of the fuel