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P0440 Diagnostic Trouble Code Discussion for December 2005

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2002 Chevrolet Avalanche 1500 5.3L MIL Lamp on VIN: 3GNEC13T52
P0440: EVAP system. Tested EVAP system vent and purge solenoids - both passed at this time. Mode $06 data shows TID 02 CID 50 failed, but the GM website does not translate this component. It would be nice to be sure if it is a vent or purge solenoid. Does anyone know what CID 50 ...
December 28, 2005