how to remove o2 sensor

perrykony · 10-09-2007, 06:38 PM

I have an SES light on, code P0141. I believe that it is the one just behind the cat converter. Tried to get a wrench on it, but it won't come loose. I've tried WD40, warming the car up, and I think I'll try a torch. It's on a 1999 Saturn SL-1 5-speed Manual TX, 1.9 Litre SOHC 4 door. There is very little room for a wrench, as there is a metal guard spot welded onto the exhaust to kind of protect the o2 sensor. If I can get it loose, it will be easy to replace, but the tough part is getting it out.

Thanks,

Perry

**Ssicarman** · 10-10-2007, 03:05 AM

P0141 is for the rear heated O2 sensor.
Hit up Princess Auto and get a oxygen sensor socket. I believe that they are even on sale right now for about 7$. It is basically a five and a half sided (has an open slot = 1/2 a side) socket with a offset for a 3/8 or 1/2 inch ratchet. It should last you the one loosening.