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Diagnostic codes Check engine light diagnostic codes PO455 and PO442.

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Http://www.obd-codes.com/p0442
http://www.obd-codes.com/p0455

Click on the links above to help you.

Posted on May 27, 2010

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roniecon
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SOURCE: engine light on. Codes PO455 and PO442?

There is a pretty good emissions leak somewhere.

Posted on Apr 14, 2010

  • 3640 Answers

SOURCE: Failed Emision test

po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Posted on Sep 01, 2009

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