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 5:58 AM
2002 Chevy Cavalier P0407 code
ROBNERIN
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P0407 shows to be an EGR code, Remove and clean EGR.
Jun 26, 2010 at 2:29 AM
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