Q: engine code p440 will not turn off on 2002 GMC Envoy

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
engine light on , fogged from both ends, charcoal cannister replaced celenoids cleaned and still p440
(1) Answer
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Run evap test; Check for change in fuel tank pressure sensor. If no change and no leaks, possible bad sensor in fuel pump module.
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