Tacoma Dude

absolutely!

Thanks for the tip, Rob!
I'm feeling so empowered now

MTL_4runner

Hey Rob, You have any pics of where the line is?
Too cold to run out and crawl under the truck.

WATRD

I don't have any photos, but I might be able to dig out of my electronic shop manual and post a capture later tonight. The evap system basically connects at the top of the fuel tank. I wouldn't have known about it, but I had to tie into it when I installed the aux tank.

rimpainter.com

Does the CEL on the 5VZ cause it to go into "limp home mode" or does it just light up with the same performance?

WATRD

My light comes and goes for various different reasons, or has over the time I have had the truck, but I have never noticed any impact on performance. It might depend on why the light is on in the first place. I have never had a CE light due to a major problem, it's usually just due to things like the evap system or an cranky O2 sensor or a loose gas cap, silly stuff.

DreamToy

Evap code for a leak could be from a loose gas cap. Make sure they click several times after filling! (have seen this at the shop numerous times!)

John

Tacoma Dude

I've seen people do the same thing, I make sure I screw it all the way. But thanks for the simple answer - amazing how many times the simple one is overlooked

lisk135

I have a 1999 4Runner V6 2wd and I just received the code P0446. I used to get a really bad fuel odor in the summer if I topped off, so I would just fill half a tank and it would keep the vapor pressure down, and my canister would not stink as bad; no CEL though. No that the weather is cooling down, I got a CEL, and when I checked it I got the code P0446. I checked my Hayes book but it is not very specific when it came to EVAP. Not sure if its the charcoal canister, the little vacuum sensor that travels over to another sensor through a tiny hose, or the sensor valve that travels to the top of my engine through a normal sized hose. I am told it could be the gas cap, one of those three sensors outside of my canister (all three have an electrical connection), or the canister itself. The canister seems to have valves inside of it too. Its a box shape with two cylinders on it with 6 hoses going in and out to many things. Everything is right there under my hood and accessible right behind the battery. What should I do... I refuse to take it to the stealership. I can fixed any thing on my vehicle with my Hayes book, but this one thing.