Code P0448 - Evaporative Emission Control System Vent Control Circuit Close.

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
Code P0448 - Evaporative Emission Control System Vent Control Circuit Close. anybody ever deal with this? I didn't find anything when I was sorting through the How to sections the other day
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
2009 OR and to my knowledge all of the recalls concerning my Xterra have been done. I have 138 000 Kms on the clock
 
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Steadyhigh

Test Drive
Location
Canada
Doubt the gas cap is the issue

The problem with mine and that code was the valve mounted on the evap canister was full of dirt and it would not open and close properly. I replaced that and added a breather to the tail light

The sensor originally is on a filter that snaps into your frame rail. Its stupid as duck and basic driving can throw this code

when it comes back that should be your next step
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
I agree I am waiting for a warmer day to look more into it. So far no code with the new gas cap. If this fixes it until spring when I am already ping to be working on the front and rear bumpers I will take the evap can off and do the extension to it
 

Steadyhigh

Test Drive
Location
Canada
If it does stay off maybe you ere just real lucky and some how the gas cap was the fix. I just know me and a bunch of guys have the same prob and only fix was the valve replacement
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
There is somewhat of a how to over on TNX. Going to be looking through that this spring when the weather warms up
 
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Steadyhigh

Test Drive
Location
Canada
Its real easy to figure out once you get your eyes on it. Then you can see how Nissan did a ****ty job locating it for a "offroad" module SUV
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
well as an update ive been driving around since saturday with the new gas cap and after clearing the codes. no SES since. so looks like a 10$ gas cap could of been my issue.
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
well the code came back about a week and a half later, baisicly a couple days after I had to start taking a grid road back to work again. since it's abbove normal weather here ( abbove freezing ) I am going to be looking at clearig out the Evap can and the valve this weekend

SteadyHigh. PM sent regarding this
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
so took the evap can out over the weekend. and took the good old air compressor to that valve and hooly Afghan sand storm coming out of that thing. now everything put back together I get the occasional P0452: Evaporative Emission System Pressjre sensor/switch low imput code. I can clear the code, and drive for 3 hours with no issues. but at randome start ups it throws this code. any info. I might see if I can take everything appart again one morning this week since it's supposed to be nice untill wednesday after that it's gonna get cold
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
I know it's not dirty. It might be a bad sensor. Or I didn't clip the plugs in properly. But this is a ransomed code that comes up in randome intervals. Supposed to get cold again up here so looks like I am going to wait until it starts warming up
 

civicjoe

lone wolf mod
Founding Member
Location
Nevada
If youre still having issues with this. It could be the valve that opens and closes got damaged in the dirt or cleaning process, its a terrible design, i think the recall was for the earlier builds, I had it come up after hunting and passing thru some deep bug dust and creek crossing its basically created concrete, then after driving through Yellowstone during a rain storm it managed to saturate enough of it to flush it out, and it went away. Its a stupid thing we have to deal with, and expensive to replace, and a ***** to take apart to clean out. You'll know if there is something up with it when you fill up, because it will act like the tank is full and stop when your filling up before its full, really kind of a pain.
 

maillet282

If you bleeding, Imma fix you
Moderator
Location
Ontario Canada
still dealing with this. the stealership wants $150-200 for the Valve sylenoid. and the same part is on Rock auto for about $100. need to wait untill they get back in stock for me to order
 
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