I know you will get a cel 41 but what else? primary controls air/fuel mixture ratios right? you will be running rich but what air/fuel mixture will your ecu give you in order to accomedate the non working o2 sensor? what will happen in the long run if u continue driving like this?

 

Yes it will run rich, the ECU will run a default "safe mode" a/f ratio, mpg will suffer and catalyst damage can eventually occur. Not to mention you will fail smog since you're in CARBifornia.

 

do you know what the default a/f ratio it will be running?

 

not sure what default A/F ratio is but i imagine close to 14.7 (14.7 is optimal ratio) i know hondas run slightly rich, but no more than a few tenths difference, correct me if im wrong?