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Code P0446 what does this mean - 2001 Toyota Camry Solara

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P0446....Evaporative Emission Control System Vent Control Circuit

something is wrong with vapour control system ,could just be a `perished rubber pipe along the line somewhere and you will have to look and check it all ,and renew the pipe as necessary

Posted on Mar 18, 2011

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Posted on Jan 02, 2017

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emmetmyers
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SOURCE: I have a 2001 Sienna and havs the P0446 code. What

Evaporative emissions control vent circuit low http://wiki.answers.com/Q/What_does_OBDII_code_P0446_Evaporative_emissions_control_vent_circuit_low_mean


Posted on Jun 20, 2009

GARYca
  • 672 Answers

SOURCE: Evaporative Emmission System Malfuction----p0446

Possible leaks, clogs, malfunctioning VSVs (vacuum switching valves), and faulty Evap charcoal canister. This system is designed to remove harmful vapors in the fuel system and preventing these vapors to enter the atmosphere, regulate fuel pressure, by sending it into the combustion chamber to be burnt.

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.

Hopefully this helps

Posted on Aug 16, 2009

  • 7353 Answers

SOURCE: 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.

Posted on Nov 13, 2009

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On a 2011 Chevy Prizm what does a Check engine light mean? How do I fix a p0446 code?


Definition of check engine code P0446:
Generic (Common for all car manufacturers):
Evaporative Emission System Vent Control Circuit

That is the probable issue.

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1 Answer

My 06 cobalt has these codes can anyone tell me what they mean? Are they an expensive fix? p0446,p0455, p0172


code p0446 refers to evaporative emission (EVAP) system-vent control-circuit malfunction===causes --wiring--EVAP canister purge valve--ECM
code p0455 refers to EVAP system-large leak detected===causes --hose connections--intake leak--EVAP canister---EVap canister purge valve
code p0172 refers to system too rich, bank 1===causes intake blocked---EVAP canister purge valve--fuel pressure ---EGR system---injector/s ---ECM
because the EVAP purge valve appears in all codes I would be inclined to change that unit first the run the fault codes again

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What does the code P0446 onn a 2002 2.4l 4 cylinder Dodge Stratus SXT mean?


Generally in google search type obd2 then po446 or whatever and an obd2 site will come up w specifics for that code. Vehicle specific generally doesnt matter. http://www.obd-codes.com/p0446 typing odb2 before the code is important to find the right site. Refer to link for specifics or search using that format I suggested.

Sep 08, 2014 | 2002 Dodge Stratus

1 Answer

Obd 2 code p0446 on a 1996 lexus es300


Evaporative Emission Control System Vent Control Circuit Malfunction 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


With a P0446 OBD-II trouble code, here are some things to try:

  • Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM

Sep 24, 2012 | 1996 Lexus ES 300

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CODE P0446 WHAT DOES THAT STAND FOR MEAN


p0446 is a generic code for Evap.Emission Control System Vent Control Circuit Malfunction.

Aug 23, 2012 | 2002 Oldsmobile Bravada

1 Answer

Service engine light is on reading code p0446 for 2003 chevrolet impala pictures on how to fix


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
  • use maxiscan us703 clear the fault codes.

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What does the diagnostic code P0446 for a 2001 isuzu rodeo mean?


Hi, your vent valve has malfuntioned. The vent valve is near the tank, and has a hose to the tank and a solenoid to close it. Check the wiring/connector. If OK, try applying 12 volts directly to the solenoid. If it does not click when voltage is applied, replace the solenoid/valve.

P0446 Evaporative Emmission Control System Vent Control Circuit OBD-II Trouble Code Technical Description

Evaporative Emission Control System Vent Control Circuit Malfunction
What does that mean? Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.
Symptoms There will be no obvious symptoms to driver, other than MIL illumination.
Causes 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
Possible Solutions With a P0446 OBD-II trouble code, here are some things to try:
  • Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM

May 14, 2011 | Isuzu Rodeo Cars & Trucks

1 Answer

P0446 code what is this? how can it be fix?


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

Sep 08, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

04 chevy avalanche. failed inspection. OBD11


Hi, a P0446 means Evaporative Emission Control System Vent Control Circuit Malfunction

Full details @ http://www.obd-codes.com/p0446

Feb 06, 2010 | 2004 Chevrolet Avalanche

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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