I have never had my 2nd O2 sensor connected and finally after about 6mos with my PR3 ECU,I get a Code 2. Should I hook up 2nd O2 or is there a way to loop sensor data from the 1st O2 sensor? Chipping out the 2nd O2 would be my last option.

Thanks

Power

 

I am not sure what a code 2 is, but it doesnt sound like the code # that is for the O2 sensor.