Question about 1999 Toyota Camry

3 Answers

99 Camry, P0441 & P0446 codes

I purchased a CanOBD2 code reader to see what the codes are so I can look into repairing the problem myself. The gas mileage may be off a bit but the car otherwise starts, runs, and drives normally at all speeds and under all conditions. The gas cap used to have pressure but now it doesn't, and I always make sure the cap is sealed properly (three ''clicks''). My friend used to drive it and he had a tendency to overfill the tank so it may have triggered the codes. The gas cap is the stock Toyota unit and I've never had it pressure tested. I don't want to replace it unless it's defective.

Since only 441 and 446 codes are present I'm thinking there's a bad valve/switch in the evap canister but wanted to check here first. How much of a job is it to repair this problem? I don't have a service manual so perhaps someone could post a diagram or direct me to a site where I could purchase a manual on the cheap since my budget is really tight right now.

Thanks sincerely for your help. :)


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  • 7 more comments 
  • NLight95 Dec 01, 2008

    The above Solution #1 post was meant to be a comment/question, not a solution. I forgot to login beforehand. Sorry guys.

  • NLight95 Dec 04, 2008

    my email is northernlight_95 at yahoo dot com

  • NLight95 Dec 04, 2008

    Toyota_Ed: Thanks so much for the PDF--that was just what I was looking for. Now I just have to wait until the weather breaks and get my hands dirty. :-)

    I'll have to recommend FixYa to my friends. All the comments were prompt and helpful.


  • gumnaam Dec 17, 2008

    Can I get the manual? I have P0446 issue on a 1999 Camry LE 4 cyl.

    Have cleared the codes several time

    gumnaam00 at gmail

  • mattg532 Jan 08, 2009

    I have a 99 lexus es300 my check engine light is on as well as the trac off light.. I have replaced the charcoal canister as well as all the 02s, the gas cap, the vsv located on top of the manifold, and have scanned all of the vacuum lines the best as i possibly could i have reset the computer after each replacement and still cannot get the light to go off... my car is two months overdue for inspection and i have now received two tickets does anyone have any suggestions?

  • shahish Mar 30, 2009

    HI There:



    I have a Toyota Corolla, Year 1999, and have 165000 KMs on the vehicle.

    The Engine light is ON on the dash board. I scanned it and gave the codes as: P0441 and P0446.

    What should I change on the vehicle, any advise is greatly appreciated.

    My email address is: shahish@hotmail.com



    Thanks in Advance

  • HOWARD GLEEMAN Mar 31, 2009

    99 Camry 4cyl. Auto

    Stalling and bogging down on acceleration

    Plugs and wirest already replaced recently

    Codes PO441 & PO446

    Garage say replace 3 way vsv and Charcoal Canister.

    Are these both together under the car by gas tank?

    Do they come together as Part OEM 77740-06091

    Fuel tank charcoal vapor tank?

    Would it be take off bolt up and plug in fix?

    Thank you in advance

    yingele@aol.com

  • Toyota Ed May 11, 2010

    Post your e-mail address; I'll send you the diagnostic tree PDF

  • Toyota Ed May 11, 2010

    Before you do anything, remove the gas cap, and inspect the fuel filler neck, where the cap fits. Observe closely for rust. Please respond what your observations are.

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  • Contributor
  • 20 Answers

MOST OF THE TIME ITS NOT THE CANISTER BUT RATHER WHAT THEY CALL A "VSV" OR VAACUUM SWITCHING VALVE LOCATED ON THE CANISTER. EITHER WAY, ITS A BIT OF A PROJECT

Posted on Nov 27, 2008

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  • Toyota Master
  • 1,861 Answers

Sent it to you this morining. Hope that it helps. Thnaks for choosing FixYa to solve your issue.

Posted on Dec 04, 2008

  • Toyota Ed Dec 04, 2008

    Thnaks for the FIxYa. Much Appreciated!

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I don't see any rust around the filler neck or inlet pipe. Is the canister like that on the Corollas--near the gas tank? I don't have a lift so I can't get under the car. I have car ramps that I can use but there's a few inches of snow on the ground (I live in ME).

I've done rather extensive work on cars (I have an Assoc Degree in Auto Tech from Cleve, OH, though I'm a computer tech by trade) so an involved project wouldn't bother me as long as I don't need any "special" OEM tools. I could save a lot of money and being on a strict budget, that would really help.

Would a bad vsv valve cause a loss of pressure in the gas tank? As mentioned, there's no pressure when removing the cap.

Posted on Dec 01, 2008

1 Suggested Answer

bunnydawg
  • 5158 Answers

SOURCE: 99 Camry, P0441 & P0446 codes

A. Diagnostics for PO441:

1. Remove Vacuum Hoses between EVAP VSV and Charcoal Canister and discard.
2. If there is a metal vapor pipe between EVAP VSV and Charcoal Canister, clean inside of vapor
pipe
3. Replace EVAP VSV and Charcoal Canister assembly with new parts.
4. Install new vacuum hoses between EVAP VSV and Charcoal Canister.


B. Diagnostics for P0446:

1. Inspect vacuum hoses and pipes between EVAP (Purge) VSV and Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and Canister.
NOTE :When performing diagnostics for an occurrence of a MIL "ON" condition, Diagnostic
Trouble Code (DTC) P0441 may be result of debris in Evaporative Emission Control System. This
may cause blockage of a vapor line, or a stuck VSV, as described in troubleshooting area of Repair
Manual.

Robert

Posted on Jan 29, 2009

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1 Answer

How to fix whatever caused the codes P0441, P0442,P0446


Check and make sure your gas cap is screwed on tightly. Then, check the vacuum lines are attached correctly and not leaking. I would bet one of the hoses came off or you have a hole in one or more. The hoses split with age. Start with these, before changing sensors or solenoids.
http://www.obd-codes.com/p0446
http://www.obd-codes.com/p0441
http://www.obd-codes.com/p0442

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1998 toyota camry, 2.2L 4 cyl. P0325, P0441 and P0446 trouble codes


Code 325 is for a problem with the knock sensor circuit, code 441 is for an incorrect flow with the purge valve and the vent for the gas tank, and code 446 is also for the vent control circuit.
I would clear the codes and see how many come back after a test drive. You may need a shop manual to test the circuits.

Sep 11, 2012 | 1998 Toyota Camry

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Have codes P0441, P0442, and P0446. What could be the problem?


this obd2 trouble code table can help you understand the meaning of code.
and for p0441, you can try:
Repair damaged EVAP lines or canister.

Repair open or short in voltage feed circuit to Purge Solenoid.

Repair open in PCM purge command circuit.

Replace purge Solenoid.

Replace vacuum switch.

Repair restriction in Evap line or canister or soleniod.

Repair resistance in purge connector.

Replace PCM.

for p0442

Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.

Otherwise, replace the gas cap, or

Inspect the EVAP system for cuts/holes in tubes/hoses.

Aug 15, 2011 | 2003 Toyota ECHO

1 Answer

Code P0441 and P0446. What does it mean?


Both codes are with the EVAP SYSTEM, there are numerous items it could be. A repair shop that does Toyotas or the delaler would be the best to check it out for you. Its not anything that will leave you walking or disable the car.

Nov 13, 2009 | 1998 Toyota Corolla

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P1410, P0441 & P0773 codes in '97 Toyota Camry


P1410 - Fuel Tank Pressure System
P0441 - Evaporative Emission Control System Incorrect Purge Flow
P0773 - Shift Solenoid Electrical
P0446 - EVAP Vent Solenoid Valve Control System

Ok, above are the codes listed on your description and there respective definitions. the P0441 and the P0446, basically run parallel and they mean the same thing. Its concerning the disposal of fuel fume waste that is burned in the EVAP canister during the EVAP process. the EVAP vent solenoid valve will have to be replaced.

The P1410 can be resolved be replacing the fuel pressure regulator which is part of the fuel pump assembly. I would also make sure the gas cap is correctly screwed on and its tight and mot lose.

The P0773 is quite different than the others. this concerns the solenoid that is located in the transmission pan. the scan has detected a malfunctioning solenoid that may ****** the shifting cycle of your transmission.

The EVAP situation will fail the emission's test if not fixed but, this shift solenoid issue, although not an emission's issue, should be check and fix soon.

Please rate and god bless:)

Apr 17, 2009 | 1999 Lexus ES 300

1 Answer

2003 toyota Matrix code p0441 and p0446...need help


p0441 - Evaporative emission control system Incorrect purge flow. can be caused by a lot of things and is usually related to a small leak in the emission control evap system, try replacing the gas cap and see if it helps, if not, the system needs to be tested for a leak with the scantool or a leak tester or both.
usually you will see p0440 p0441 and p0446 together but before anything replace your gas cap and besure to tighten it down when you gas up the vehicle, 90% of the time with those codes either a loose gas cap of bad gas cap gasket is the problem

Otherwise - Might be a canister leak, defective VSV valve or hoses, bad gascap seal.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Mar 17, 2009 | 2003 Toyota Matrix

2 Answers

99 Camry, P0441 & P0446 codes


A. Diagnostics for PO441:

1. Remove Vacuum Hoses between EVAP VSV and Charcoal Canister and discard.
2. If there is a metal vapor pipe between EVAP VSV and Charcoal Canister, clean inside of vapor
pipe
3. Replace EVAP VSV and Charcoal Canister assembly with new parts.
4. Install new vacuum hoses between EVAP VSV and Charcoal Canister.


B. Diagnostics for P0446:

1. Inspect vacuum hoses and pipes between EVAP (Purge) VSV and Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and Canister.
NOTE :When performing diagnostics for an occurrence of a MIL "ON" condition, Diagnostic
Trouble Code (DTC) P0441 may be result of debris in Evaporative Emission Control System. This
may cause blockage of a vapor line, or a stuck VSV, as described in troubleshooting area of Repair
Manual.

Robert

Jan 29, 2009 | 1999 Lexus ES 300

1 Answer

1998 toyota camry V6


P0420 indicates you have a catalyst efficiency issue; replacement of the Air-Fuel Sensor should take care of that;
The P0441, P0446 and (I assume P0440); you said 446 twice, indicates a faulty or loose fuel cap; it is not sealing properly.
Please feel free to respond to me if you have any further questions.
A FixYa rating from you regarding my assistance would be greatly appreciated.

Dec 27, 2008 | 1998 Toyota Camry

3 Answers

P0440,p0441,p0446


These codes are all for the Evaporative Emissions System.

P0440- Evaporative emissions system fault- just saying there's something wrong with the system.

P0441- Evaporative emissions system- Incorrect purge flow- saying that the system isn't purging the raw fuel vapors (hydrocarbons- HC) as well as it should.

P0446- Evaporative emissions system- Control valve circuit low- there is a valve, usually located on the charcoal canister at the rear of the vehicle, that opens to allow fresh air to enter the evaporative emissions system as the engine vacuum purges the fuel vapors from the charcoal canister and closes when purge is not needed to prevent leakage of those fuel vapors to the atmosphere (HC is a greenhouse gas and is regulated as such by the fed gov't).

Given that you have the incorrect purge flow code and the control valve code together, my bet is that the vent control valve has failed (causing the P0446) and is not opening to allow fresh air into the system to displace the air from within the system that is being pulled to the engine. Since you have no fresh air entering the system, the engine will pull a vacuum on the system instead of the vapors "flowing" into the engine (causing the P0441).


I hope that this is helpful to you!!!


ASE Master Technician with L1 and X1 Certifications; Nissan Scope Technician; Chrysler Level 3 Silver Technician- 12+ years experience.


Nov 17, 2008 | 2001 Toyota Corolla

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