Question about 2003 Toyota Highlander

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2003 toyota highlander OBD code's po442/po446/po441

Check engine light on I used my OBD11 reader and codes po442/po446/po441 showed up I looked it up and it says auxiliary emissions controls small leak. So if anyone can please tell me how and where to check this it would be great thanks and have a great day.

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  • suncoastavia Dec 21, 2008

    Just wanted to say thank you my air filter was checked and my tether strap is off my gas cap. So thanks you have no idea how you have helped Merry Christmas to ya.

  • suncoastavia Dec 21, 2008

    Just wanted to say thank you my air filter was checked and my tether strap is off my gas cap. So thanks you have no idea how you have helped Merry Christmas to ya.

  • Anonymous Mar 18, 2014

    codes came on

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Toyota camry 1999 has engine light on. Diagnostic Code PO441 appears on testing. What does this code m ean for a 99 Camry?

Posted on Mar 01, 2009

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If the air filter was recently inspected or changed, look for the vacuum hose to be disconnected from the valve located on the air filter cover. another source may be the gas cap either loose or with the tether strap caught under it preventing a proper seal

Posted on Dec 20, 2008

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Posted on Jan 02, 2017

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http://www.obd-codes.com/p0442

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