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P0446 Diagnostic Trouble Code Discussion for August 2010

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2002 Saturn SC1 1.9L MIL Lamp on VIN: 1G8ZK52722
P0446: EVAP Vent System Performance. ... check engine light on,scanned for codes P0446 and about 4 others.Got all others codes to clear with help of IATN.Cannot get P0446 to clear.Data for fuel tank pressure reads 0 volts and -7.50" vaccum.One would think easy fix,replace pressure sensor not ...
August 04, 2010