Anyone have a writeup or link on how to install an O2 sensor? My "Check Engine" light is on and my mechanic checked the code for me this morning and confirmed it's coming from the O2 sensor. I see NAPAOnline.com has them for $80 and I want to install it myself if possible. (I need the $$$ to have my mechanic replace the cracked exhaust manifold)
Any help is appreciated! Howie
unplug it and unscrew it...very simple make sure you do the right one there are 2 one is right by the collector the other is right by the convertor
It is just like installing a spark plug. The problem - a very small problem - is that the O2 sensor has a wire on it, so you can't use a standard socket wrench on it because when the wire pokes through the drive hole that the ratchet fits into. The simple solution for this problem is to buy an O2 Sensor Wrench. It looks just like a socket, but it has a slot cut in it to let you pull the wire to the side and fit the ratchet into the drive hole.
L.W. ("ßill") Hughes III did pass the time by typing:
I agree with ßill on this one. That header leak will screw up your O2 sensor big time and it's not doing any good for your cat or your fuel economy.
As for the manifold, it's a fairly easy DIY project with lots of drop-in (or semi drop-in) aftermarket solutions. Having the service manual helps because you will need the torque spec and sequence for the manifold.
Thanks for the tips guys. I replaced the front O2 sensor and the Check Engine light and code "21" have gone away.
Thanks again, Howie
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