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P0446 Diagnostic Trouble Code Discussion for August 2006

EVAP Vent System Performance


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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
1998 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K4W
P0446: EVAP Emission Vent System Performance. ... while now. I have a code P0446 telling me there is a restriction in the evap vent system. I tried to look back of other help requests but have gotten nowhere. My question is why is the FP sensor always reading pressure. Voltage spec shows it to be good 1.3...
August 08, 2006
2001 Chevrolet Tahoe 5.3L MIL Lamp on VIN: 1GNEK13T31
P0446: EVAP Vent System Performance. If nothing else I would like verification to give to the customer. The light and code are set appro. every 200 to 280 miles or so. I went through the diag. of this code and found everything is within spec. I did find a TSB ( 04-06-04-055 ) regarding vehicles i...
August 14, 2006
2000 Toyota Corolla CE 1.8L MIL Lamp on VIN: 1NXBR12E2X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Getting tired of this one. Did the obvious first, visual inspection, and new OE gas cap. OK for a couple of days, then same code resets. Did the new VSV and VPS at the cannister. Next day, same code. Replaced with new cannister from dealer, which came with sen...
August 21, 2006
2000 Toyota Corolla CE 1.8L MIL Lamp on VIN: 1NXBR12E2X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Getting tired of this one. Did the obvious first, visual inspection, and new OE gas cap. OK for a couple of days, then same code resets. Did the new VSV and VPS at the cannister. Next day, same code. Replaced with new cannister from dealer, which came with sen...
August 23, 2006
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K1X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. i know EVAP problems can be a nightmare but any help with this would be greatly appreciated. i have a friend who works for toyota, sad to say,he offered a gesture of "good luck".
August 29, 2006
1998 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K4W
P0446: EVAP Emission Vent System Performance. ... while now. I have a code P0446 telling me there is a restriction in the evap vent system. I tried to look back of other help requests but have gotten nowhere. My question is why is the FP sensor always reading pressure. Voltage spec shows it to be good 1.3...
August 08, 2006
2001 Chevrolet Tahoe 5.3L MIL Lamp on VIN: 1GNEK13T31
P0446: EVAP Vent System Performance. If nothing else I would like verification to give to the customer. The light and code are set appro. every 200 to 280 miles or so. I went through the diag. of this code and found everything is within spec. I did find a TSB ( 04-06-04-055 ) regarding vehicles i...
August 14, 2006
2000 Toyota Corolla CE 1.8L MIL Lamp on VIN: 1NXBR12E2X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Getting tired of this one. Did the obvious first, visual inspection, and new OE gas cap. OK for a couple of days, then same code resets. Did the new VSV and VPS at the cannister. Next day, same code. Replaced with new cannister from dealer, which came with sen...
August 21, 2006
2000 Toyota Corolla CE 1.8L MIL Lamp on VIN: 1NXBR12E2X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Getting tired of this one. Did the obvious first, visual inspection, and new OE gas cap. OK for a couple of days, then same code resets. Did the new VSV and VPS at the cannister. Next day, same code. Replaced with new cannister from dealer, which came with sen...
August 23, 2006
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K1X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. i know EVAP problems can be a nightmare but any help with this would be greatly appreciated. i have a friend who works for toyota, sad to say,he offered a gesture of "good luck".
August 29, 2006