1999 Civic Si Throw CEL

[preferredduck]

check O2 sensor, after my cat was gutted i got the same code, when i switched the O2 to an obd-1 i was rich. after putting the cheap universal O2 in the code went away. you may not need a new one but check it out, if you have a spare or a buddy with one hook it up and check it out. mine has always been trouble on bank 1 but in the past i would get an O2 code randomly because something did not read right in the ecu.

btw i am running a jdm b16a with CTR cams and more air flow too with a obd2-b Si ecu.

[IloveLindaT]

check O2 sensor, after my cat was gutted i got the same code, when i switched the O2 to an obd-1 i was rich. after putting the cheap universal O2 in the code went away. you may not need a new one but check it out, if you have a spare or a buddy with one hook it up and check it out. mine has always been trouble on bank 1 but in the past i would get an O2 code randomly because something did not read right in the ecu.

btw i am running a jdm b16a with CTR cams and more air flow too with a obd2-b Si ecu.

So change Primary huh?

I just put a new one on like 2 months ago, Both New. Shit was expensive too.

Does that Non Fowler really work?

Im about to just give up and do it the illegal way. Im tried of dropping money after money and still the problem doesnt get solved.