Kaotik_Jeffy

ok what i am having issuses with is the fact that my car makes no diff as to how it runs with the o2 hooked up or not.it is a cx in which i used a si harness to be able to run the p75 ecu and four wire o2 i have a b18a1 block and head with the sensors all moved over from my obd1 d series block and head a obd1 b series head intake the only code i throw is the o2 code being code #1 and runs like *** until i get the rpms up to about 2500 then takes off also wonderin what the sensor on the back of the block next to the oil sendin unit is thank you for your help in advance

Kaotik_Jeffy

anybody know what i need to do here?