Hey there viewers and welcome back to the self made auto channel we're back on the 2007 nissan. It's the frontier, the nissimo, with the 4-0 uh, it's one we previously looked at used car guys special. I had the relay that had the piece taken out of the side, it was making it stay connected and killing the battery overnight, making it do funny things like leave the lights on humming noise coming out of the transmission so on and so forth. That's done! Uh still needs a sticker still has the engine light on.

So i took and uh sat here for a while and then uh drove it around started. Fine, it was great battery. Wasn't dead, had to drive it around to get the drive cycle to uh. You know work through again, so we could get those two codes.

We had. We had a code for the fuel level sensor and then something to do with the evap uh canister vent valve being shorted, so we're gon na chase those down see if we get those fixed for them and then ship this baby down the road i've got it Set up on the lift here, because i assume we're gon na - have to go underneath this little guy, so i did that uh being that we're gon na go back and deal with the canister vent valve uh. I'm gon na take the power probe with us. I don't know what kind of bi-directional controls we've got with nissan as far as being able to command it on and off and stuff, so we want to be prepared, prepare either way so i'll get this hooked up after i get rid of my giant knot.

I just put it i'm, hence unenhanced she's all done scanning. We've got just the two codes there in the ecm. Everything else is green. I got to remind myself of what they were uh.

So 463 is our fuel level sensor and then this is just the first trip or a pending code vent valve uh. So that's what we're going to look at. First, we will go to our control unit. Then the engine and we'll see what kind of bi-directional control we have for this uh cancer vent valve.

Now i got our little pick right, so we can go, find it and unplug it we'll go active test, vent control valve. That probably sounds like the ticket um. I don't think we need any data. Do we um intake valve? I don't know unless we got a pit that tells us that we're actually doing what we're doing uh we'll skip it, we don't need the we don't need any data.

I don't hear any clicking underneath the car behind me. Oh, you know what i think i do actually that'll be jiggered. I do so there's the canister vent valve up here. So i believe it should be this little fella right here.

Let's uh turn it on and wait for this car to go by it's off well be dipped. It uh definitely seems to be clicking here. Oh show, let's back back out of here, let's get that code number again. I think i thought it was a circuit code.

Was it 448 got to look on service data 448? Maybe i think in generic obd2. I thought that showed up as a circuit code, so i figured we're just kind of an open circuit, but perhaps in an oe it may be a performance. You know, because i see she's not really looking like she's a performer folks, uh, it's pretty crusty. It may be, you know, leaking, so maybe a canister bent belt performance code.

Let's look up at service data, so here it is folks, here's what we're looking for uh. So the 448 uh evap canister vent control valve closed, and this is the key right here. Detecting condition for the dtc evap canister vent control valve remains closed under specific driving conditions. Possible causes cancer, vent valve pressure, sensor, blocked hose to the vent valve drain, filter, blah blah blah.

So long story short, it's commanding the vent valve closed. It does its little evap thing, it pulls vacuum and then it opens and inspects the seat. You know vacuum decay or it knows it's open, but it's seeing all of a sudden, this thing's building pressure building vacuum and it says that the vet valve must be at fault. So therefore, it sets a code for it, um which may or may not be true.

The vent valve could be blocked or the you know, the canister itself could be plugged or the pressure sensor could be off. You know so on and so forth or purge syllable. I could be stuck wide open, pulling it into a vacuum uh, but that's that's what we got to look at also notice, when i was looking at service data that nissan has a tsb or service bolton uh, which simply states to replace everything to replace the canister. The filler neck um the vent valve the pressure sensor and everything all the hoses going up to it.

They have this big long list of all the parts that you can buy from nissan, replace everything we're obviously going to skip that it's old vehicle. It's got a lot of miles on it, let's use car guy and we're going to see what's really wrong with it, which individual component, hopefully we can replace and then take it from there. So i think the next best uh step here that we can do is we'll hook up the invoca. Smoker will give us some visual, a visual aid here as far as what's happening is our valve sealing and indeed as it releasing and if it is releasing how quickly uh.

I think this would be the easiest thing to do, or at least something to do. You got ta do something, so this is what we're gon na do. We're gon na put this little guy on uh the test port. Conveniently is right here, which is great.

Look that up i'll get an air hose and we'll fill it full of smoke. I went back and just popped the gas cap off before we start to make sure it's at atmospheric pressure. I'm not super familiar with nissan to know whether or not if 3.9 volts is atmospheric pressure. It appears, at least in our case it is um.

I guess we'll see uh, it's always something we can look up if stuff doesn't seem strange to us uh. So now we will take i'm gon na leave. The cancer vent valve offer open, so the back door is open, so we'll turn on the evoca smoker. I just clicked that baby on, we should see a little increase in pressure, but it should be blowing right through the canister and right out the back of the truck right now, just kind of curious to see where this ends and then technically.

If i reach up and turn this the evoker smoker off, it should drop back to 3.9 volts, which i'm going to shut off right now it is off. Oh boy, houston. I think we have a problem, i'm going to turn the evoc smoker back on and then we're going to close the back door, and now it should build pressure relatively rapidly, at least what we can see. I don't know how high it goes.

I don't know if it goes by four and a half something like that, so we'll let that build up for a while, we'll make sure the system can seal, but as slowly as that decayed. When i shut the smoker off and i'm thinking, we probably do have a restriction of some sort, i'm just going to shut the smoker off and see if it can maintain pressure. So right now, with the back door closed and the front door closed, it should hold pressure. The smoke machine is turned off.

It should hold that 4.16 for a while, okay, it seems to be so we're going to kick the smoke machine back on and then we wait. The ball on the flow gauge is almost at the bottom. It's going to hit the bottom we're going to go underneath and see if we can't identify a restriction, so this should be the fresh air side of the vet valve, so i'm going to open it now. So it's been closed.

Now it's open now the smoke yeah. The smoke should be plummeting out of this hose at this point. Just holding my finger over here for a second, can you guys see where he at okay yeah? It does have pressure very very little, but uh yeah. The smoke should be ripping right out of this now smell the gas it smells old.

Will you guys smell that? It's funny yeah still no uh takes it. A second builds pressure and you're like that. So that's kind of interesting um. Let's check that's where it goes into the canister: let's check it coming out of the tank, perhaps that's easier to get to four hours later, this thing's a mother lover to unhook um.

This is the tube going from the canister uh to the tank and uh see. We got good smoke coming out of it. I just had to turn the smoke machine back on. Let it build up some pressure here, but it seems to purge out of this quite quickly.

Uh. Let me grab my grab. My scan through here. We've got some actual data, so the canister vent valve right now is closed.

Of course, we still got that hose out of the frame, and now i'm just holding my thumb over the other analysis, how quickly the canister itself can just purge out this end of it. I'm going to release my thumb in three two, so that goes right back immediately out of this side of the canister, so that tells us some stuff that tells us that either the canister itself is plugged from the vent valve out. This side of it seems to be okay or the vent valve itself. Has the restriction build into it? The problem is folks.

The problem is, i touch that vent valve that canisters about a 95 chance, it's gon na break. Let me get my face up in here and have a little closer look for us. Uh, probably gon na get a blow nozzle blow off some of this crud. It's pretty crusty up here that dirty heat is done and i did a dirt cheap kind of hoses that we should have the purge coming into this thing somewhere, which that must be so we've got.

I don't know what you guys can see hold on. Let me look at you, so you can look at me, so we got a pressure sensor hose to the tank the vent valve hose out of the tank or hose out of the cancer. The fresh air side. What has been concerned is there's a lot of stinking dirt coming out of that baby.

So i'm thinking the canister itself is probably swamped with dirt, and then this must be the purge here. Let's kind of tweak that out of the way idiots build it, so you can't turn the purge solenoid or the vet valve off from it. Come on. Oh just someday someday here you go you'll, never have to work on a rusty piece of crap come on baby good golly.

Miss molly got that sucker off there. Oh boy, lots of dirt. On that side of the, i can't get the stinking electrical connector off and i want to break it right now. She's rusty, she's crusty, well lots of dirt inside that vent.

Of course, the smoke machine is shut off. At any rate, i got ta set the car back down, turn the smoke machine back on again and now we're going to see um if the restriction, actually we can just blow through this i'll, tell you oh, let's be turned on because i can't blow through it At all, let me shut it off there. Now it's turned back off now, let's see if we can blow in it, come here baby yeah, so you can blow right through that no problem uh. Therefore, the restriction has to be beyond a shadow of a doubt in the canister.

What's up miss so i got a question. You look super hot again today, like every freaking day. Hey. What's up, can you talk to me? There's a lady on the phone.

I got a question for you so right now, folks, i don't know if you could tell, but the vent valve is still out and i'm holding my finger thumb over the hole and this the the smoker is on we're, letting it build pressure we'll let it get Up to four point: whatever it gets to 4.3 and theoretically, when i remove my thumb, it should instantaneously lose all pressure which right now we're just wasting time. We already proved that the vent valve works and that the hose going to it is not plugged. Therefore, the only restriction could be is in the canister itself, but uh just to prove it to you. They're 4.18, 420 good, even number to stop at i'll release my finger in three two released and it did not drop right back to the 3.9.

It's going back. She's going slow, therefore, 100 definitive this little guy is plugged and, judging from the looks of the truck she's, probably a dirt road driver in its former life, she's crusty folks follow up friday, folks uh, even though today's tuesday, here's the nissan things got a little bit Hectic yesterday, i just took it for a rep. Why did i take it for a rip because jason ended up fixing the thing uh and, as you can see, we now have a functioning gas gauge with the distance till empty uh. Now it works uh and no engine light and wait for it.

I just tried to run a drive cycle on it this morning here before my nine o'clock. It shows up, and i think we got everything except the o2 sensor, which is not a big deal. Give it just a moment here. Folks, i believe even the evap ran, which i was pretty happy to see.

But, oddly enough, the o2 sensor has not run yet, but the good news is that we have no codes so no codes. Our mill is off. We just got we're down to one monitor, so it could legally uh get a sticker when he takes it to the place that gives away the sticker. Now, when i took the evap canister out or when jay took it out that thing weighed about 50 pounds, it was full to the top of dirt and then the fuel level sensor was just bad.

That was that was kind of a gim me. That was an easy one, but anyway folks, i want to give you guys a follow-up to let you know uh, where we're at on this. I would love to have worked on this myself. However, yesterday we had a couple of no-shows jerks uh and the boys needed some stuff to do uh, so i fed them some of the work that uh that i was gon na do so jason took care of this.

We took that canister out uh. I gave him hand doing that and that thing weighed, probably 20 pounds more than the one we put in nissan, has an update where you change everything the filler neck, the canister, all the hoses. Just everything goes new. I don't know if that is a fix to prevent the canister from sucking in dirt or if it's just a shotgun approach for their mechanics at the dealer to just you know, to get it right, not have a customer come back to say you know, hey joe Customer you need everything you just you know that code, you get everything new pressure sensor.

You know canister vent valve, canister, all the hoses, the vent hoses, the fresh air hoses, a filler neck, a gas cap. You need everything, so i guess that's one way to what they call cya, which means cover your butt um. I don't know i'm not a nissan guy and then the fuel level sensor. That was a piece of cake, uh, we're right there.

It's just a matter of you know: unplugging the sending unit, you know open circuit short circuit, gaskets went from empty to full and you know about it: bing bada boom dropped. The tank took the sending unit out, measured it. It was completely open. The little swiper on the fuel level sensor was gone, so that's that you didn't get to see the repairs and also to address another question as far as why were they pulling relays? I don't know, and that's still my question.

However, i've driven the truck enough to know so far that i don't know, i don't know why somebody was in there fiddling with relays and fuses and why it has a new computer and why they mess with the body module and why things have been touched. I don't know, but i'm sure at some point someday someone will find out and that's not for us. All i want to find out is what you guys think in that comment section the questions, the comments, the instinct, the facebook and just remember, viewers. If i can do it, you can do it thanks for watching you.