Ok I fired up the swap today. B18C into a 2k HX civic. Fired right up, only I get CEL 41 for the primary O2. So I thought mabe the O2 was bad and tried one from my other civic and I still get the same thing. All my wiring seems to be right. What else could it be?

 

bah come on somebosdy give up the info! hehe

 

heater sensor of the o2 sensor..... that's about it...

 

maybe you got the o2 sensor plugs mixed up, try switching them and reset the ecu.

 

yeah I tried switching them and got the same result.

 

hey did you fix your problem ?
I'm getting the same exact problem let me know what else you did and if it solved it