01-11-17 Update I'm not sure if I received a faulty sensor. The other day the light came on again with a code P1133 I cleared the codes and it came back. I checked leaks, etc. other possible causes and the sensor is the one thing that causes the code to come on. So I put a junk yard sensor in and without resetting codes drove for a few days. The check engine light came off on it's own. This tells me that the NEW sensor I purchased is not working correctly. I should have replaced with the brand my mechanic friend said to use.Dec 2017 - Perfect fit, installed two days ago and check engine light is gone. Only thing about the install was anti seize was not supplied with the sensor so make sure you have some handy. If you have never taken your sensor out before this could turn into some work and might be best left to a professional. DO start up the engine and let the exhaust warm up a bit before removal. After removal I use a thread chaser to make sure the threads are clean and ready to accept the new sensor. The next thing to note is that about every 20k miles I loosen the sensor put some anti seize on and snug back up.This was the upstream sensor I replaced the downstream sensor as well, now time will tell if some of that gas mileage comes back.