Question about 2002 Toyota Camry

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Trouble code P0446

Hi...

I have a trouble code in my car toyota camry 2002 se...the technician change the sensor and the fuel filler and the cap,but still the engine light flashes after 3 days...the trouble code is P0446...what will i do to solve this problem....

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  • Anonymous Aug 05, 2008

    Same problem (repeatedly) on my girlfriend's 2002 Camry. Seems frustratingly common, but no on seems to know how to fix it.

  • iarasteh Nov 25, 2008

    Yes same problem code p0446 1998 toyota avalon xls

  • Anonymous Mar 17, 2014

    what sensor do I replace

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  • Toyota Master
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P0446 is an EVAP code.Charcoal canister vent control valve; commonly located under the trunk, at the canister.

Posted on Sep 08, 2008

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I too bought a 1999 Chevy Prizm with a slew of codes PO 440,441 442.... Did the research and condemed the VSV. After searching for a good price on one I decided for a few dollars more, to replace the whole item. New canister,new VSV. Dropped the exhaust, took my time and was pretty happy. Light was off for 3 days and now have a PO446. Time for a smoke test? Thinking about the cut off valve at the top of the tank. any ideas? By the way, I got the whole canister system through Auto Zone for $200. Took it out of the Fed Ex box and was surprised at the original toyota parts. Also, the gas cap feels a bit funky when tightening it, guess I should replace it for a start.

Posted on Jun 04, 2013

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Posted on Jan 02, 2017

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P0441 what dose it mean and how can I fix it .toyota camery le 1998model


P0441 1998 Toyota Camry - Evaporative Emission Control System Incorrect Purge Flow

When is the code detected? Pressure in charcoal canister and fuel tank does not drop during purge control (2 trip detection logic).

Possible symptoms: - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors

P0441 1998 Toyota Camry Description: The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks

- Excess vacuum

- Purge flow during non-commanded conditions

- Fuel Level and Fuel Pressure sensor faults

- EVAP Purge and Vent Valve faults

The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.

P0441 1998 Toyota Camry Evaporative Emission Control System Incorrect...

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
P0441 Toyota Evaporative Emission Control System Incorrect Purge Flow

Jun 01, 2015 | 1998 Toyota Camry

1 Answer

1999 Toyota Tacoma trouble code p0446


Hello there,

It COULD be something as simple as Fuel filler cap. !!!!
See here
http://engine-codes.com/p0446_toyota.html

Sep 23, 2014 | Cars & Trucks

1 Answer

1997 isuzu rodeo 3.2v6 trouble code p0446


Here is the description for the code. The vent system would need to be checked out to find the actual problem. It should have been fixed under factory warranty.
The P0446 codes triggered when an improper voltage signal is sent to Engine Control Module (ECM) through EVAP canister vent control valve.
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
- Vent control valve harness is open or shorted
- Vent control valve circuit poor electrical connection
- Faulty vent control valve
Read more: http://engine-codes.com/p0446_isuzu.html#ixzz2WVj6BK29

Jun 17, 2013 | Isuzu Rodeo Cars & Trucks

1 Answer

P0446


P0446 HYUNDAI - EVAP Emission System Vent Control Valve Open Circuit

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
- Vent control valve harness is open or shorted
- Vent control valve circuit poor electrical connection
- Faulty vent control valve

Dec 20, 2012 | Hyundai Motor 2003 Sonata

2 Answers

Code po446 came up on my 1999 toy camry 2.2 how do I fix.....


Check to make sure the canister purge valve on the airfilter hosing has the vacuum lines connected to it. It is really common for these to come of or the fittings to break when checking/replacing the air filter.

to check the valve itself unplug it. Supply power to one pin and ground to the other. You should here it click. You can also try blowing through it. I dont remember exactly but either you will be able to blow it with it powered up and not be able to blow through it with it not powered up or just the opposite.

There is also a VSV on the charcoal canister that goes bad and causes this code. Same thing as above to check it.

If both of those check out than you will need to have the system checked for leaks with a smoker.

Feb 16, 2012 | 1999 Toyota Camry

1 Answer

My 2004 Mazda 3 GT 2.3L is getting a P0446 DTC and is burning through a tank of gas in about 2-3 days depending on the amount of driving being done. My Mazda dealer believes that it may be the fuel pump,...


P0446- Evaporative Emissions Control System Vent Control Circuit Malfunction

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

Code is detected when VSV for pressure switching valve is ON, ECM judges that there is no continuity between vapor pressure sensor, fuel tank and charcoal canister (2 trip detection logic)

The vapor pressure sensor, Voltage Solenoide Valve (VSV) for EVAP, Voltage Solenoide Valve (VSV) for canister closed valve (CCV) and Valve Solenoide Valve (VSV) for pressure switching valve are used to detect abnormalities in the evaporative emission control system.

The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.

Diagnostic Trouble Code (DTC) P0446 is recorded by the ECM when there is a malfunction in either the VSV for EVAP, the VSV for pressure switching valve, or in the vapor pressure sensor itself, or when evaporative emissions leak from the components within the dotted line in Fig. 1 below.
evaporative_evap_system_toyota.gif
The ECM closes the CCV and opens the VSV for pressure switching valve causing vacuum to increase in the entire EVAP system.

The ECM continues to operate the VSV for EVAP until the vacuum is increased to a specified point at which time the ECM closes the VSV for EVAP.

If the vacuum did not increase, or if the vacuum increased beyond the specified limit, the ECM judges the VSV for EVAP and related components to be faulty.

Aug 26, 2011 | Mazda MAZDA3 Cars & Trucks

1 Answer

What will be the cost of part and labor for po440 ctrl sys po441 evap incorrect purge po446 vent control


If you have P-0440-P0441-P0446, you can usually trace that condition to a loose fuel cap, or a fule cap that has a bad rubber o-ring, or rust build-up where the cap's o-ring seals against, at the filler neck opening. The cap is about 15 dollars, and the replacement filler neck is about one hundred sixty dollars

Nov 03, 2009 | 2002 Toyota Camry

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

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

I got a problem with my toyota camry 1998


More often than not, the Vacuum Switching Valve for the EVAP has failed. This is assuming that alll of the vacuum lines are good, and there is no damage or cracks in any of the moulded plastic connectors under the tank. You need to go to a Toyota dealer & purchase the Evap VSV, part number 90910-12264; expect to pay about 50 dollars for the switch. You can't buy this switch at an auto retailer such as AutoZone; it's a dealer item only. Hope this helps, and the graciousness of a "FixYa" would be much appreciated. Thnaks for choosing FixYa!

Oct 23, 2008 | 2002 Toyota Camry

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