please help anybody- i have a 96 honda civic ex...my check engine light has been on for a while ...when i took the car to the emissions place it failed because the 02 sensor...i have a full-catback exhaust? will i have any problem buying a new one and changing it? does anyone know where it's located and how to change it??? is there a good place to buy them at??? PLEASE HELP I CAN'T REGISTER MY CAR UNTILL IT PASSES THE EMISSIONS AND I ALREADY HAVE A TICKET MUST CHANGE ASAP.

 

www.sparkplugs.com
buy a denso first-time fit (or dont bother doing it...NO bosch)
Is it cel for primary or 2ndary o2? change only the one thats bad

 

I would get a factory O2 sensor........

 

the headers i have dont have an 02 sensor hole" where u plug the sensor into there dc headers but pretty old its a 96 civic so how else can i change the sensor...cuz im thinking i have to buy some headers with the 02 sensor on it...???

 

even with the headers the cel will come on. but try replaceing it and see if its still there try to disconect thr bat. and wait maybe it will go away. maybe the cat is bad which is causing the o2 to come on

 

denso is oem....

header, you have one (no S)

old doesnt mean anything, I just find it VERY surprising because dc makes a lot of honda crap.
Of course the cel will go off without the o2 in it

read:
http://www.hstuners.com/forums/showt...threadid=23007
Figure out which code you have and then go about fixing it.