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P0455 Diagnostic Trouble Code Discussion for November 2008

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2005 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire, MIL Lamp on, Hard Start VIN: 1GCEC14X85
P0455: EVAP System Large Leak Detected. Ok guys I have this Two wheel drive chevy that runs rich on both banks. This is a newer 4.3 that is a returnless fuel injection system.It set a random misfire code and all of the listed codes. Looking at the history it has missed on all cylinders but the the b...
November 18, 2008