Ok after my swap i got a CEL for primary o2, i changed out both o2, and check the wiring, nothing i still get a cel under hard driving followed by getting "off it". any ideas, maybe another sensor is bad which casues the car under load change to run rich or lean, tripping the 02? and yes ive reset my ecu many times,

Please help

 

I believe if the FPR is not working properly, it will also cause the ECU to throw a O2 code. I say check that.

 

Do this, reset ECU and go driving. Try reving in 2nd to 5K RPM and decellerate in gear down to 1KRPM. Do you get code 1 or 2?
Let us know.

 

i get a code 1, primary o2, and how do i adjust the fuel pressure? and where should it be at?

 

My o2's were wired backwards because i have a pr3 ecu...