Question about 2001 Toyota Corolla

3 Answers

P0440,p0441,p0446 if you have a code p0440,p0441,p0446 on a 2003 toyota corolla what will be the problem.

Posted by on

  • 2 more comments 
  • Anonymous Feb 28, 2009

    am having the same codes .

    so P0446- Evaporative emissions system- Control valve circuit low is it
    VSV for Pressure
    Switching Valve ? Please help so i will change this part!

  • candy_one28 Mar 22, 2009

    I got the same codes on my camry, 440, 441 and 446
    The dealership found VSV and CCV faulty.....both were fixed but within a month, the codes came back on again. The codes still read 440, 441 and 446....What might be the issue?

  • Bunklash Apr 25, 2009

    All I need is the location of the charcoal cannister and pressure vent valve location...where on the car of an "04 Camry.

    Thanks in advance!

  • fsoetekouw May 16, 2009

    The dealership tells me that the Evac canister needs to be replaced. Is that correct. They charge $290 for the canister and $130 labor.

×

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 55 Answers

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.


Posted on Nov 17, 2008

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I have 99 toyota corolla ,chek engine is on code po441 what can i do to fix

Posted on Oct 26, 2010

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Good comment...you know your stuff.....keep up the good helpful tips Master ....million thanks you for other users !

Posted on Mar 20, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hello there,my 2001 echo is lighting up trouble codes p0440 p0441 p0446; how and where should i start?


code p0440 refers to evaporative emission (EVAP) system--malfunction=== causes --hose connections --intake leak--EVAP canister purge valve
code po441 refers to EVAP --incorrect flow detected==causes the same as for po440
code po446 refers to EVAP system vent control --circuit malfunction===causes --wiring---EVAP can purge valve--ECM
generally I would replace the purge valve as it is common to all codes

Feb 03, 2014 | Cars & Trucks

1 Answer

Toyota corola 2000 codigo p0440 /p0441 /p0446


for these code you can try:

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

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

Inspect for damaged or disconnected hoses around the Evap purge solenoid.

Check and/or replace the sensor.

Check and/or replace the purge valve.

Have a professional use a smoke machine to detect leaks.

Aug 25, 2011 | 1999 Toyota Corolla

1 Answer

Code p0440 code p0441 code p0446on toy echo 2000 what is the diagnosis?


P0440 Evaporative Emission Control System Malfunction P0441 Evaporative Emission Control System Incorrect Purge Flow P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
  • Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

Aug 19, 2011 | 2004 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

3 Answers

2001 Avalon Check engine codes P0440,p0441 and p0446.


yes it would be a smart thing to do and no it is not that hard it should onlt have two bolts holding it on

Aug 03, 2009 | 2001 Toyota Corolla

2 Answers

P0440, P0441, P0446


where is Evap Emission Control System Purge Flow fault

Jul 02, 2009 | 2000 Toyota Celica

1 Answer

2001 corolla chack engine light on.


P0440= Evap Control Sys Malfunction
P0441= Evap Control Sys Purge Flow Fault
P0446= Evap Control Sys Vent Ckt Malfunction

Mar 30, 2009 | 2001 Toyota Corolla

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

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

Not finding what you are looking for?
2001 Toyota Corolla Logo

9,093 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...