O2 Sensor Problem

[silvia tunner]

My O2 sensor is *****d up what is needed to fix it my self. And if i decide on going to a Machanic to get it fixed how much should they charge me

[nismofan14]

Be a little more specific. How is it ****ed up?

[daniel240]

ushually you cant fix and O2 sensor, they go bad, and they need to be replaced. ushually around $70-$100 to buy them. no need for a mech. to replace them, just screw it in. btw: which one is it?

[silvia tunner]

its the Main one not the one that is on the cataylistic the other one. i heard that u need a snap on tool to be able to change it. what shouold i do? go to a Machanic? If i find out how to change it i'll change it my self i just don't wana make things worse by doing what i don't know

[nismofan14]

The one on the exhaust manifold? Just remove the heat sheild and the wrench size is between 19-21 mm.....cant remember exactly.