Question about 2002 Toyota Camry
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....
P0446 is an EVAP code.Charcoal canister vent control valve; commonly located under the trunk, at the canister.
Posted on Sep 08, 2008
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
Tips for a great answer:
- 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
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