my 02 sensor is one piece. manufacture mo 11/03 2004 x type 3.0 this is a california epa car

 

danoc22, I am trying to understand what you are looking for in the way of information. Thank you for giving us your make month/year since you have a 2004. You have what we here refer to as either a 1st gen X-Type or an early X-Type.

Are you needing a new sensor? Having issues with your sensor? If so, what code(s) are you getting?

 

I have 1647 that pops up I changed out the up stream sensor light still comes on 1647 comes back. 2004 x type 3.0 manufactured 11/ 03

 

Welcome to the forums danoc22,

I've moved your question from General Tech Help to X-Type forum. This is the place to post technical questions about your model.

Graham

 

danoc22, what you are showing with the code is that your bank 2 upstream O2 sensor is bad. Based on the age of the car, I am going to assume that you have never replaced the O2 sensors. If this is the case, then it is probably time to replace the sensor. These do wear and have a tendency to fail after 10ish years of use.

Now, to replace the sensor, there are a few things that I am going to tell you that are lessons learned from members here:

1) buy a sensor (preferably a Denso one) that has the plug already attached. Yes, there are cheaper ones out there that you have to put on the plug. For the amount of work and the general bad luck that I have seen, spend the extra $30ish dollars. It will be well worth it.
2) You are going to want to get a 1/2" breaker bar and a special O2 sensor socket. Now, the sockets come in 2 flavors. Yo uhave the kind that looks like a complete socket, just with a window cut in the side. These work, but I have found that they do not allow you to place a lot of torque on things and based on what you have, you may need to really get on the O2 sensor to get it out. I personally recommend spending a few bucks and getting one like in this link: https://www.ebay.com/itm/7-8-Inch-an...UAAOSwB05d9eME. While this looks like it would be more difficult to use, it is not and will allow you to really get on the sensor to break it loose.
3) on the subject of breaking it loose, get yourself a can of PB Blaster and soak that sensor really good, wait 10 minutes, soak it again, then try breaking things loose. That sensor is going to have a lot of corrosion on it. Let the PB Blaster ease the work.
4) some places offer "universal O2 sensors" THEY ARE NOT UNIVERSAL!!!!!! Avoid these. Too many people have bought them and had more issues than I care to admit to.

Replacing the sensor is pretty much removing the air box from your car, undoing the plug to the sensor, sliding the socket down to the base of the sensor, then breaking it loose. This is a fairly easy sensor to get to. The one on the back side of the engine will be coming up soon. So, if you are getting 1 sensor, should buy 2. The one on the back of the engine can be gotten at by sliding your hand down the hole that exists next to the brake booster. Not a lot of room to work, but without removing a lot of stuff, your only way in.