where is the purge valve located in my 2004 toyota highlander 6cyl. on 2004 Toyota Highlander

code #'s po441, po445, po446 Is there anyway I can check and fix any of these code problems.

Asked by for the 2004 Toyota Highlander
Purge valve is located on a mounting bracket bolted on the front of the intake manifold. On a 4 cylinder its bolted on the firewall behind the throttle body.
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I had the very same problem with my vehicle. This year model had problems with the bulb socket you need to replace it. The part is about $3 and can only be purchased at Toyota.