The obd0 pr3 and pwo ecu's are real picky about the o2 sensors. Are you running both of them? If so try switching the positions of the two sensors. Sounds stupid but it works sometimes.
Also if anyone you knows has a mugen chipped ecu or some other chip that eliminates closed loop try that.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.