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P0446 Diagnostic Trouble Code Discussion for June 2008

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK19T1Y
P0446: EVAP Vent System Performance. installed new vent solenoid and lines and relocated filter per tsb. ran bay test with mastertech and po446 returns. opened purge with scanner and can feel vacuum at filler neck. open and closed vent valve with scanner and can hear clicking. i cannot read fuel ...
June 09, 2008
2001 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL52J71
P0446: EVAP Canister Purge Vent Blocked. ... station. I scaned and got a p0446 Evap system vent controll and a p0442 Evap system small leak detected. I pulled charcoal canister down and checked out the vent solonoid and found the filter was full of dirt and debries and the soloniod seemed slow and we...
June 13, 2008
2002 Kia Optima SE 2.4L Stall, MIL Lamp on, lacks power VIN: KNAGD12682
P0446: EVAP Vent Control Circuit Malfunction. the car runs fine at idle, but under load when driving has low power and will not accelerate over 40 MPH without stalling. The computer codes lead us toward the catalytic converter, however a vacuum test to check for exhaust restriction indicates no restrictio...
June 19, 2008
2001 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K61
P0446: EVAP Vent Control Solenoid Circuit Malfunction. this problem occurs very intermittent one thing i noticed and dont know if it is normal is vapor pressure on scan tool reads 151.53psi with key on engine off is this high or normal
June 20, 2008