2002 Chevy Cavalier P0407 code

2002 CHEVROLET CAVALIER
135,000 MILES • 4 CYL • 2WD • AUTOMATIC
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ROBNERIN
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How do I troubleshoot & fix check engine code P0407. I already replaced the gas cap & reset the light but it returned with the same code.
Jun 25, 2010 at 12:58 PM
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