Question about 2007 Toyota Camry

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PO 441 I tried changing gas cap and evap valve. Still comes on after I reset. just 441 code

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  • Toyota Expert
  • 350 Answers

This is a incorrect purge flow code, try replacing the purge vsv located on the hose that has the green valve cap on it, one hose has vacuum when the engine is running the other hose goes back to the fuel tank, the valve has an electrical connector on it .

Posted on Jun 05, 2014

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Posted on Jan 02, 2017

SOURCE: trouble shooting po441/po446

Go and buy a VSV for CCV. That should fix your problem

Posted on Jul 13, 2008

  • 20 Answers

SOURCE: 99 Camry, P0441 & P0446 codes

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

  • 1986 Answers

SOURCE: check engine code "P0446 Evap Control System Vent Control Circ"

Unfortunately, this code has nothing to do with the gas cap....
A code P0446 could mean one or more of the following has happened:

  • Faulty vent valve
  • Open, short or excessive resistance on Vent valve control circuit
  • Blockage of vent valve
  • Bad PCM
Here are some things you could try to fix it:
  • Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM


Posted on Nov 17, 2009

  • 1861 Answers

SOURCE: engine light on Codes show

Hello! Those three codes commonly indicate the followi possibilities:

The gas cap was not sufficiently tightenend ater fueling, a bad gas-cap rubber o-ring, the vehicle had the key in the 'on', or engine running, or the tank was filed all of the way up the neck.

Any one of the abope causes will set all three codes.

Posted on Dec 21, 2009

  • 220 Answers

SOURCE: 05 corolla, after gassing up,

Sounds like you may have an issue with the check valve on your in tank fuel pump. When these go bad, you have to crank several time to build up enough pressure in the fuel rail for engine start. With a good check valve, the fuel pressure will not bleed off and the pressure is retained for the next engine start.

Posted on Oct 27, 2010

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1 Answer

Code po 441 2004 Kia


Check the fuel cap or vent valve if you have a smoke machine you can close vent valve with a bi directional scanner and smoke the system if leak appears though charcol canister with vent valve close the vent valve is the problem.
Fuel tank should have a certain amount of vac in hg that is monitered by pcm of vac is low or has none the it will trigger check engine light on 2nd ignition cycle

Jan 22, 2015 | Kia Cars & Trucks

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ENG. LIGHT ON CODES PO 442 ANDPO 445 IS SHOWING UP ON SCANER


The PO 442 code is an EVAP system small leak, either in the evaporative system or cooling. Sometimes this will occur after a drenching rain and remain until the diagnosis code is reset, usually will disappear after you read the codes. If not, a dealer can reset the code system via the radio believe it or not. PO 445 is similar, an EVAP system code but is usually related to gas vapors being sent to the engine rather than through the atmospheric venting system. Check the gas cap system here first, a gas cap not properly tightened (3 click) will sometimes cause this. Also, look to the spark system wiring harness or purge control solenoid.

Sep 16, 2014 | 2001 Dodge Ram 1500 Truck 2WD

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Po 171, po 305, po 441


Hi, I know from my past experiances the spark plug wires at the boot ends than slide onto the sparkplugs usually over time short out due to the metal tubes that protect the sparkplugs from heat kind of ark across from the metal tube through the plug boot causing an error code. Sometimes in the dark you can actually see them arking at the tube on the engine, and also hear a crackling noise. As to the code for the O2 sensor that's a normal wear and tear item that may need replaced. As all vehicle age over time electrical connections, and things have issues develop and cause havick with sensors and computers in these vehicles too.


As with the 441 code and then the other code for the O2 sensor showing up may mean both O2 sensors are going bad if your system has 2 sensors in the exhaust, usually one before the cat converter and one behind it. A lot of this also is due to what gasoline you use in the vehicle over time. Lower octane gas may be what is causing things to act up.

Jan 03, 2014 | Dodge Ram 1500 Cars & Trucks

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Engine light is on and after diagnosed it shows evop po 452 and po 441, i need help.thanks


code P0441 could mean one or more of the following has happened:
  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector
  • Bad PCM
code 452 is evap system- Could be lose gas cap. If you have got gas recently reset code make sure gas cap clicks. ALSO IN THE FUTURE GIVE US YEAR AND MAKE OF VEHICLE THIS HELPS US NARROW DOWN THING.

Aug 25, 2013 | Cars & Trucks

1 Answer

09 Chevy colorado code p449


PO449-- Evap Vent Valve/Solenoid Circuit Malfunction

PO441--Evap Purge Valve Incorrect Flow
PO 443,444,445 Purge Control Valve Issues


There was no reason to change the gas cap or
purge control valve

Didn't Google the code & use it correctly to diagnose
the problem

Mar 23, 2013 | 2009 Chevrolet Colorado Extended

1 Answer

How to fix problem for code # po 441 for 1996 nissan maxima


Hi there:
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.



I suggest replacing the gas cap with preferably one from the Nissan dealer, or OEM equivalent, then clear these codes by disconnecting the negative battery cable for about a minute then drive it normally; if the codes come back, this may take a couple of days, you most likely have to have the system tested for leaks.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.


Thank you for using FixYa, have a nice day.

Aug 23, 2012 | 1996 Nissan Maxima

2 Answers

1998 Cheverolet Lumina, ''service engine soon'' and hard gear shift


I doubt the two problems are connected. I would try a new gas cap and see what happens since it runs fine. The service engine soon light won't reset on it's own right away.

Jan 11, 2010 | 1998 Chevrolet Lumina

1 Answer

Engine light on Codes show 1. Po 441 evaporation emission system incorrect purge flow 2. Po442 evap emission system leak (small) 2. 446 evap emission system incorrect purse flow 2004 Toyota Tacoma pickup...


Hello! Those three codes commonly indicate the followi possibilities:

The gas cap was not sufficiently tightenend ater fueling, a bad gas-cap rubber o-ring, the vehicle had the key in the 'on', or engine running, or the tank was filed all of the way up the neck.

Any one of the abope causes will set all three codes.

Dec 20, 2009 | 2004 Toyota Tacoma

1 Answer

PO 441 evaporative Emission controle system


Possible causes
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve

Apr 18, 2009 | 1997 Toyota Camry

1 Answer

Code 441


this is usually caused by not tightening you gas cap till it clicks 3 times try that then have the light reset and it will probably solve your problem

Oct 05, 2008 | 2004 Chrysler Concorde

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