2000 Toyota Tundra Code P0446

About 4 weeks ago I had a check engine code of P1442 and I took it to an independent garage and they replaced one of the secondary air intake switching valve. When driven owners may see the check engine light come on and the computer will store any of. Evap Canister 2000 2 P0441 P0446 Toyota Nation Forum Po441 Po442 Po446 New Charcoal Canister And Good Vsv Taa World The Toyota Vacuum Switch Valve Is A Possible Cause Of Emission Codes.

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In my case the fix was trivial.

2000 toyota tundra code p0446. A code P0446 could mean one or more of the following has happened. Blockage of vent valve. NOTE When performing diagnostics for an occurrence of a MIL ON condition Diagnostic Trouble Code DTC P0441 may be result of debris in Evaporative Emission Control System.

Asked Aug 7 2013 by Tommy. Tundra P0441 Causes. It often appears with other codes such as P0420 P0441 or P0440.

Here is the location of the disconnected hose that caused this problem for me. Joined Feb 9 2007. Its not the canister that goes bad but a small plastic piece that cracks and creates the leak that is not replaceable as its.

This trouble code references a number that is given to you when you plug your Tundra into a OBDII scanner. Here are some of the most common causes of the P0441 code. If it is paired with P0441 P0440 andor P0446 there is most likely a solenoid failure leaking charcoal canister or a more complex EVAP leak.

When it is energized it opens and allows air in. If other codes are present regarding fuel pressure or the fuel system repair and diagnose those first. General fault code for Evaporative Emission Control System Malfunction.

This is the solenoid that opens to allow air into the charcoal canister during a purge cycle. When it goes bad it typically. My 2001 47L Tundra had P0441 P0446 codes.