Question about 2001 Toyota Camry Solara
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
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
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
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
Hopefully this helps
Posted on Aug 16, 2009
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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Evaporative Emission Control System Vent Control Circuit Malfunction A code P0446 could mean one or more of the following has happened:
With a P0446 OBD-II trouble code, here are some things to try:
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A code P0446 could mean one or more of the following has happened:
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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:
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