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This code needs the Toyota Scan tool for proper diagnosis. Internet diag is very difficult without all the facts. It could be a canister or a CCV valve or a corroded evap tube or hose or purge valve ect..... the list goes on. The scan tool gives vapor pressure readings and depending on its reading thru the evap test, this reading leads you to the area of malfunction.
 
I know that this must be a dumb question, but I am a newbie, so appreciate the help. How do I view the attachments? I have A P0440 and 446 codes on my 2000 camry and want to see the TSB on what to replace. It seems that mustang67408 attached them, but I can't see them.
Thanks.
 
Here is the TSB.
It only fixes the problem 50% of the time, most of the time it is the ORVR. The ORVR is in the top of the fuel tank and usually cracks, also see attched picture.
 
Mustang, thanks so much for a prompt reply, really appreciate it. Quick follow-up question, how do I get to the ORVR? Do I have to take off the rear seat? or can I see it from the bottom of the vehicle somehow?
 
Hi, I am new to this forum. Thanks for posting all the info on these emissions problems.

I have a 2000 Camry 2.2L 5S-FE.
I have code PO446 - large leak.

In the pictures that black4n posted what is the valve directly above the ccv-vsv?
The valve has the large hose in the middle of it.
It has one very rusted phillips screw holding it to the canister.

The ccv-vsv works fine.
The 2 vsv under the hood work fine also.
We blew smoke through the vacuum hose from the engine port and smoke was coming out of the vent hose (the large hose connected to the valve in question).

I removed the valve and when I blow through this valve the air
flows even when I apply vacuum to the control via hand held vacuum pump.
I can here it move when apply/release vacuum but there is no change in air flow in any direction.
So, I assume this is bad.
Can you tel me the part number and price for this valve?
 
Hey Mustang,
Is there are pdf or pictures on how to replace the ORVR? I don't know if this will help you in diagnosing the problem, but in my two other toyotas I always hear a vacuum suction sound when I open the tank to refill with fuel. In my 2000 Camry (046 code) I don't hear that sound as the pressure appears to be equal in the tank and outside, so I am assuming that there is a leak somewhere, and the ORVR sounds like a good place to start from. Is there any way of getting to the ORVR without removing the tank and putting epoxy or silicone on the area of the leak? Seems like that wouldn't hurt even if there is no crack. Then I can see if the vacuum in the tank returns prior to replacing other components.
 
Hey Mustang,
Is there are pdf or pictures on how to replace the ORVR? I don't know if this will help you in diagnosing the problem, but in my two other toyotas I always hear a vacuum suction sound when I open the tank to refill with fuel. In my 2000 Camry (046 code) I don't hear that sound as the pressure appears to be equal in the tank and outside, so I am assuming that there is a leak somewhere, and the ORVR sounds like a good place to start from. Is there any way of getting to the ORVR without removing the tank and putting epoxy or silicone on the area of the leak? Seems like that wouldn't hurt even if there is no crack. Then I can see if the vacuum in the tank returns prior to replacing other components.
P0446 is not usually a ORVR, its on the wrong side of the system. I have attached a TSB that pertains to that code for your vehicle. If this valve doesnt cure the problem, then the canister is the next step as long as there is no leak in the evap lines. We use a pressure tester and a smoke tester to check this.
The ORVR is only accessed by removing the tank. epoxy and silicon will not work.
 
Mustang,
Thanks for the TSB. It says Camry (NAP only), what does that mean? Mine is a 2000, 4 cyl, made in Japan (VIN starts with a J), and has Cali emissions. Does that attachment you sent still apply to my car?
 
NAP ia American built only, does not apply to Japanese vehciles.
You need to have someone diagnose it that knows what they are doing, anything I say would be a guess without facts from the scan tool and evap tester
 
Hi new to the forums, found you guys searching for solutions to my CEL issue. I have three codes that come up when I connect the scanner:
P0441, P0446 and P0455

All EVAP related issues. Been reading this particular thread since most people have been getting the first two fault codes. I have a 2004 4-cylinder Camry. I haven't taken the car to the dealer for the EVAP pressurization test, kind of want to avoid that if possible. Made sure gas cap was still on and secured. Was wondering what the best course of action would be?

Kind of thinking about testing the VSV to see if they are switching properly. I have located the one in the engine compartment behind the air filter container. Was wondering if the 2004 Camry also have 3 VSV and where they are located? Thanks and I look forward to your responses.
 
NAP ia American built only, does not apply to Japanese vehciles.
You need to have someone diagnose it that knows what they are doing, anything I say would be a guess without facts from the scan tool and evap tester
Mustang -

Is this enough to assist with my p0446 ?:

2000 Camry LE 4 cyl. Cal. emissions.

I really am in no position to have a dealer drain my resources while 'trying' to figure things out. I'm willing to spend some $ and as much time as I need to clear this code so I can get a state inpsection sticker.

I've read that a VSV located near the rear cannister is a likely culprit and runs about $50.

Any chance you would be able to comment on this and advise ?

Any diagrams on this is also appreaciated too !
 
I am troubleshooting my daughter's 2001 Camry 4 cylinder with a P0446 and am so thankful for this forum. This code started in the fall and she had advance auto reset it and was able to drive it for weeks without the light coming on. She needs emission in June so, when it came on again the last time I reset it and asked to keep track of the mileage and conditions when it came on. It came on again within 25 miles the first time she really punched the accelerator after the car had time to warm up. Suspecting a vacuum leak, I looked at the hose from the air intake to the VSV on the breather and found that you could spin it easily where it attached to the intake. Upon inspection the hose had hardened and cracked. I replaced the hose, reset the code, took it for a 20 minute drive on the beltway and crossed my fingers. No code.
She made it 3 days before the light came on again. I haven't checked the code but she is bringing the car by this weekend and I suspect it's P0446 again and one of the VSVs is bad.
I'm pretty handy with a volt/ohm meter and I can get a vacuum gauge. What readings am I looking for?
Her VIN begins with JT2BG22K71.
 
I am new to this forum. I see attachments mentioned, but I do not know how to access them. There are no links in the messages. Thanks if you can help.
 
In your 2004 , you have to remove the fuel tank to replace or check anything on the canister.
Here is a pdf to remove the tank and canister.
Mustang,

I've got an 05 Camry 4 cylinder that looks like I may need the charcoal canister as well. I'm typing this from the dealership. Could I get you to PM me the PDF for the 2005 with the part number as well please? Thanks for being such a huge help to everyone here. If you could let me know how much you sell the canister for, I'm positive you can beat the dealership, I'd like to buy it from you.

05 Camry
 
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