Changing O2 sensor - Toyota Nation Forum : Toyota Car and Truck Forums

ObsessionK1 · 09-10-2004, 07:02 PM

I got a '99 camry and trying to put on the catback I got for it. The bolts I can heat up and just unscrew, but the O2 sensor will not budge. I got a extension thing from autozone and the %$@ thing will not unscrew. Is there some easier way to taking it out, or am I doing it wrong ?

Quickbeam · 09-10-2004, 07:52 PM

Use a big-ass crescent wrench, lefty loosey. Spray it with some WD-40 or whatever about 15 or 30 minutes before you try again. The expansion rate of the O2 sensor threads is different than that of the exhaust so it's probably jammed in there pretty good.

japple · 10-19-2004, 02:28 PM

The O2 sensor might be tightened by the German way "Gut-and-tightht" and + the metal heats up so much, sometimes it resembles a weld in. :] I have to change mine since i am getting the O2 msg = check engine light....We'll see how that goes.

trixx · 10-19-2004, 10:59 PM

Where exactly is the snesor located? the picture in the haynes manual ain't good enough.

japple · 10-21-2004, 02:11 PM

it is on the front where the engine exhausts goes out below (not under) the cover of the pipes (with the little - Caution - Hot! sign) is is like a sparkplug and the cable goes up to the engine block.usually has 3 or 4 wires (black, white, blue, gray).
Replay if u get it loose. Use lot's of WD-40 :]
Thanks.

ObsessionK1 · 10-21-2004, 05:36 PM

The O@ sensor that I was having problems with was tucked up by the catalytic converter. I just took it to Tuffy's and they were able to get it out with something. I just had them put the rest of my exhaust on as well.

http://members.cardomain.com/bloody

japple · 10-22-2004, 10:42 AM

how much did they charge you for the actual sensor? (no labor)