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P1441 Diagnostic Trouble Code Discussion for February 2006

EVAP System Flow During Non-Purge Conditions

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Trouble Ticket Help Requests for DTC P1441
Help Request Posted
1999 Isuzu Trooper S 3.5L MIL Lamp on VIN: JACDJ58X6X
P1441: EVAP Vacuum Switch Circuit High Input. ... open, and that will trigger "the evap purge vacuum switch will open when vacuum increases to greater than 5 inches of vacuum". The pcm monitors the pruge vacuum switch signal to determine if the evaporative emission contorl system is working proper...
February 06, 2006
1996 Chevrolet S10 4.3L Hesitation VIN: IGCCS14X5T
P1441: EVAP System Flow During Non-Purge Conditions. Cleared codes and non have retured while test driving. Thought problem might just be related to fuel pump as this is so common on this motor, CPI, lots of posts with my problems fixed by FP replacement. Truck feels like it has a slight miss while going down th...
February 28, 2006