from a quick internet search:
What causes the P0441 code?
Bad gas cap
Faulty vacuum switch
Damage EVAP system line
Open or short in the wiring harness
Restriction in EVAP system
Evap leak
Purge valve
start eliminating the possible causes and remember that time ages parts as well as miles. also topping off the tank ruins evap canisters.
tony

 

Did you figure this out? My '99 Camry V6 has thrown a P0441 today. I'm thinking of starting with checking the purge valve function, but need to figure out where it is first, ha!:nerd:

 

Mine is not fixed. Throws 441 and 446. Going to change out the VSV for EVAP and see if that does it. I reset it with a code reader before emissions so I'm good for another 2 years. 95K on it now.

 

Most likely it is a leak or malfunction in one or more of the following items:

Vapor pressure sensor
VSV for vapor pressure sensor
VSV for EVAP
Charcoal canister leak/malfunction
Any of the hoses for the above items or the connection of the hose to the fuel tank overfill check valve.

P0441 is triggered when the pressure in the charcoal canister doesn't go down during purge, or if pressure in charcoal canister is very low compared to atmospheric pressure when purge cut-off is happening.

If you have access to a scanner that gives you freeze frame data, check and see if the engine run time was less than 200 seconds. If yes, check the VSV for EVAP, charcoal canister, and vapor pressure sensor.

First check the connector for the EVAP, VSV for VPS, and VPS to see if it's loose or not even connected. Then check all the hoses for cracks/rips/tears/holes/deterioration/blockages, or lack of connection.

 

Thanks John, I cleared the code, but if the code comes back, I'll be looking into those components. BTW it was a very hot day today, 100 deg. F, and the car was in a garage at around 80 deg. F. I wonder if that may have contributed?

 

Changed the VSV out with an OEM switch valve (Aisin VST-012) and that seems to have done it. After reading up on this it was difficult to get just the switch valve - you had to change out the canister which contained the switch valve. These are now available for about $35. Not too difficult to replace - didn't need to remove canister or drop exhaust.

 

my 1998 Camry had this problem before and I had to replace a couple hoses and get the engine degreased so they could find it lmao I the check engine light came back a couple times but I’d just ebrake drift around a corner and it would turn off it recently came on again though after a tune up P0441 haunts me

 

oh yeah we’re at 204,300 mi baby! Still runs like a champ but I kinda don’t wanna risk anything going from ca->tx when the mechanic “fixed it” I got the sensors replaced

 

I just need to find out where the purge valve is located for a 1998 Toyota Camry V6. I've tried Google, but it keeps giving the location on the wrong year, make, and model. The 1998 Model is set up different. The evap canister is under the hood on the driver's side under the brake slave master. But I can't locate the purge valve?

 

See if it's on top the engine on the left side just below the black plastic injector cover.

 

@Dabenger ,

Did you test the purge valve before replacing it? Did you replace that purge valve and the canister with new ones or used ones?

Here are the likely causes of the P0441 on the 1998 V6 Camry:

I'm assuming your replacement canister came with the VSV for VPS (sometimes called "vent valve") so those are replaced along with the VSV for evap (purge) and the hoses. Did you replace ALL evap hoses? Assuming your replacement parts are not faulty, the only other physical part in question is the VSV for vapor pressure sensor (on my Gen 9 Corolla, that is on the charcoal canister) or the VSP itself (on my Corolla, that's on the fuel tank). Other than that, it's most likely an electrical issue (open/short) or the ECM.

 

Get a digital voltmeter/multimeter and do a volt probe on these terminals of the ECM: Turn the ignition switch on and measure the voltage between terminal "VC" and terminal "E2". You should get a reading around 5 volts +/- 0.5 volts. Make sure you're probing the correct terminals because on some cars the ECM is installed upside down (not sure about your Gen4 V6 Camry, but it's installed upside down on my Gen 9 Corolla, which I didn't notice at first and I was testing the wrong terminals). Make sure you're not on Ohms/resistance testing. That could cause damage. You want the setting on VOLTS.