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P0446 Diagnostic Trouble Code Discussion for August 2005

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2001 Chevrolet Blazer LS 4.3L MIL Lamp on VIN: 1GNDT13W61
P0446: EVAP Vent System Performance. Hey Techs, This well maintained vehicle wil not accept re-fueling. Spits back through filler. Dropped the tank and the spring loaded restrictor is free and fine. Not too familiar with domestic but the "roll over valve" seems to be clear and the vent a...
August 04, 2005
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22KXX
P0446: EVAP Vent Control Solenoid Circuit Malfunction. ... with code p0441 and p0446. i replaced the vapor pressure vsv per tsb. clear the codes and after 6 miles of driving code p0441 came back. scan data read 153 psi vapor pressure .i hook up vacuum pump at service port under the hood and clamped the hose at the...
August 13, 2005
2001 Toyota Echo 1.5L MIL Lamp on VIN: JTDBT12381
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Hi guys, this Echo has like 3 DTC’s on the same system. Wanted to know if there is really common component that usually goes out on this. Any help, tips, advice would be appreciated.
August 17, 2005
2000 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WPOAA2997Y
P0446: EVAP canister shutoff valve function below limit. ... and it comes back in 2-7 days. the code is p0446 EVAP Canister Shutoff valve (function)below limit. i followed the test procedures in alldata which state to blow air through the purge lines to check for blockage, none found. if none found, replace evap can...
August 25, 2005
2000 Toyota Corolla VE 1.8L Hard Start VIN: 2T1BR12E3Y
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Customer says that after filling up the car, It cranks for a long time and he has to hold the gas pedal down to get it to start. And at times there is a rotten egg smell from exhaust.And the the"check engine"light comes on. Checked for vacuum at sensor...
August 25, 2005
2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK19T2Y
P0446: EVAP Vent System Performance. ... history dtc p0446, evap system performance. followed dtc chart, fault not current. r.t.'d vehicle, fault not present. scan data with fuel cap off showed 1.41 volts, 4.85 in/Hg. scan data with psi sensor disconnected showed 0.02 volts, -2.11 in/Hg. psi sens...
August 29, 2005