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1. 

   Wanting to Kill an Engineer

   • chuzz
   • Nov 21, 2015
   • PT Cruiser

   15

   8K

   Nov 28, 2015

    by ImperialCrown
   1. 

      ImperialCrown

      · Super Moderator

      1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.

      Joined Jun 8, 2008

      ·

      17,286 Posts

      #2 · Nov 21, 2015

      Only show this user

      The P0440/P0441 aren't necessarily evaporative system leak codes. Your gas cap is probably fine,
      The 'general evap system failure' and 'incorrect purge flow' for me have usually been a failed NVLD switch.
      Mopar calls it a 'detector', but please continue with your diagnosis to confirm the problem.
      
      http://www.factorychryslerparts.com...Vacuum-Leak-Detection/4272075/04891525AB.html

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   2. 

      GLHS60

      · Registered

      Joined Jun 23, 2008

      ·

      2,098 Posts

      #8 · Nov 22, 2015

      Only show this user

      ImperialCrown said:

      The P0440/P0441 aren't necessarily evaporative system leak codes. Your gas cap is probably fine,
      The 'general evap system failure' and 'incorrect purge flow' for me have usually been a failed NVLD switch.
      Mopar calls it a 'detector', but please continue with your diagnosis to confirm the problem.
      
      http://www.factorychryslerparts.com...Vacuum-Leak-Detection/4272075/04891525AB.html

      Click to expand...

      Am I correct that, if the gas cap was indeed loose, then tightened, the fuel tank had to reach full, then below 1/4 before clearing??
      
      Thanks
      Randy

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