Finding a bad vehicle sensor the easy way. I got this scanner, OBD scanner from Harbor Freight in 2016, 2017 I'm not sure if the newer ones have more sophisticated options or not However, this one is that old and has these options if you don't want to get a harbor dog one You can go to Amazon. I'll leave a link in the description for a Scanner to there. You want something with live data I'm going to show you how I took this piece of equipment and found a sensor that wasn't working correctly So what I did was I plugged this into the vehicle Started the vehicle up Some will ask you to pick the exact model Some may not I've already gone ahead and done that option. It's simple once it says click the make You're just going to cycle down and push okay nothing complicated at all So what I'm going to do is I can view the data by clicking Okay Complete data sheet. Okay Now as far as my concerns were Were the vehicle Sensors we have bank one and bank two O2 sensors. So we have an O2 Bank one sensor one. That's what O2 B1 S1 means then we have O2 bank one sensor two You can see the voltages are fluctuating the vehicle is running. This is live Now if we go down here to O2 bank two sensor one Passing your side first sensor close to the engine This one was not moving was not moving at all I could rev the engine and it wouldn't move therefore If it wasn't moving on this It must not be working properly. I Got that part from O'Reilly 380 days ago it came with a one-year warranty I Could not take it back This is now fluctuating because the parts been installed and I'm about to show you some tips and tricks regarding that You can do a simple Google search to see where your sensors are on your vehicle as such as bank one bank two You might only have bank one because you have a just one manifold where I have two manifolds now on this vehicle I'm looking at the engine bank two sensor one is about right to the rear of the engine bay on my exhaust manifold that connection is right back in here on this one I Twisted out such as that and There it is so this is the orifice where the sensor came from so I'm not gonna show you me removing that But what I will show you is what you should do take some WD-40 and blast that sensor the old sensor where the threads are To make it easier on yourself for moving it you can undo the the fastener up at the top where the sensor plugs into the Vehicle so it doesn't bind all up and that would help you use a pipe wrench Because it's probably if you're not not in the South If you're in New York, or Pennsylvania, it's probably rusted right down there if you use a 70's wrench just gonna Strip it strip the Hocktagon, whereas if you have a pipe wrench, it'll grab right onto that And then retrieve the sensor that I've already unscrewed and there's the old sensor the next thing I would strongly suggest is that you take your new sensor without cutting it Take the packaging off but compare the sizing on this model they sell a long version and a short version the short work version that I ordered Previously on Amazon did not was not the correct length this one is I'll go ahead and keep track of the time and note how long this has been in the vehicle and what it is To keep track of its efficacy I buy my stuff on Amazon because I can return it if anything were to happen Say this sensor is faulty instead of putting up with the retailers I can go ahead and send this right back to Amazon my store link is in the description check out some of the parts that I've been Replacing on and off of YouTube so to make this easier on myself. I'm gonna take a zip tie And I'm gonna make this so it won't fall down the engine bay But yet it'll still be able to allow me to twist the sensor in Before connecting it because if I connect this first and then twist the center It's gonna start gyrating and causing a knot Whereas if I put this in the manifold first and let this twist with it Then I can cut the zip tie off and put it back into its housing So with the zip tie on Drop it right back where I got it from and try to route it with the help of gravity Rather than going from down there and trying to feed this up here So I'm not gonna connect that zip ties on there So I can get to it This already has anisees on it if it doesn't have anisees I strongly recommend you put some on there So if you ever have to replace this in 380 days or however long your sensor lasts It comes out with slightly easier now if you have a tap to tap this out Then you probably don't even need to watch this video, but if you have a tap tap that out Otherwise reach red and a new one in there's not gonna be as easy since this plug has some corrosion on it What I'm gonna do they're actually gonna put the new sensor in I'm gonna cut the threads with the sensor itself because I don't have a tap if you have a tap then I strongly suggest you use a tap But what I'm doing by cutting this what I say is I'm going a little bit of a turn and I'm rocking it back and forth I'm I'm taking a little bit of material and then I'm backing it out to let the crud get out just like a tap wood So that way I'm not just I'm not just going when I remove this Stuff is gonna fall out just like a tap granted. It's not gonna be Cuts it's gonna be a little bit uglier It's still gonna grab a lot more And it's gonna be much easier to remove And to install over time because before this thing wouldn't even turn where now as you can see I'm turning this as if they were cut threads And then that way I can see it without like going over torx back because if I go over torx back I could ruin the sensor And that's just go over 50 foot pounds I guess and lubricant is your friend Just trying not to get it all over the sensor because I'm not sure the effects of lubricants and certain sensors But yeah, I'm almost tight So after running this back and forth I'll just commit And Furniture training this they do have a special sensor Sackets with cutouts for the wires like this. I'll link this in the description as well It's got the notch and pay attention to what size your sensor is minus This is working just fine if I can fit this wire up through the cab since I have my zip tie on it And I'll do that if not And that's not easy. I can drop a line and grab this wire and bring it up Whatever is sufficient This just took a little bit too much work to want to remove this Just to feed it back down through it was easier Then you'd want to drop it in the top and take advantage of gravity. There's my cable tie And then my sensor connection is back there as well So I'll cut off my zip tie And then make my connection. I've gone back under the vehicle and checked the wire routing to double check that none of my wires are touching anything Ha or anything that moves if so zip tie or route Depending upon those two variables plug your OBDN Turn the key on not start let this start communicating Okay, so it's saying that we have codes found Are you very s yes try to get this on one shot so you can see Okay Read codes stored codes Swing Okay, yep, and it's gonna ask you to pick the model make it model Nissan Okay 1168 and 1051 there were three codes now we're down to two without resetting us escape So we have to those two codes I'm erasing the codes yes Yes Okay, so Live data vehicles running now I'm gonna record data for shriits and giggles So So these are all this is all the live right now with the engine running Now I'm not too concerned with any of this off off the rip Okay, so that that 02 BS sensor one That was the concern The one that I just replaced it wouldn't come off of point six Said fancy-looking fingernails, isn't it Wouldn't come off point six we've already seen a fluctuation in this one which is good was not moving at all I could rev the engine and it wouldn't move Therefore If it wasn't moving on this It must not be working properly now after the new sensors in I'm gonna go back by clicking escape And I'm going to do erase codes I'm going to erase the codes so that way we can start fresh and if there's any other malfunctions We'll know That it's going to be something else There you go and turn it off so with the old sensor what I'll do is I'll put that in a plastic bag With some documentation on it and then I'll also go on my phone and document what I did in my notes regarding this vehicle So that way I'm up to date and I know exactly what sensors have been changed so that way in the future I can know how to mitigate issues and then the clean your disgusting hands you use something like this Which will be in the description as well