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P0446 Diagnostic Trouble Code Discussion for June 2007

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
1999 Lexus LS400 4.0L MIL Lamp on VIN: JT8BH28F0X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Any common probs for this emmision system? Vacume lines appear good at canister, dont have smoker machine.. Any replies welcome, no other codes at anytime on this vehicle. Diagnostic on this code points to everything but gas cap "code 440" or tank, in ...
June 11, 2007
1998 Porsche Boxster 2.5L MIL Lamp on VIN: WP0CA2982W
P0446: . this is my bosses car this code sets about every 2 weeks and wecant seem to find out why so we thought we would try this we have not found any reason for it so if any one out there has any ideas we would certainly appreciate it thanks in advance
June 20, 2007
1997 Nissan Pickup 2.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1N68D16S0V
P0446: EVAP Vent Control Malfunction. ... up that we have had with similar symptoms. The last one ended up being a shorted white wire from the distributor in the wiring harness. Here are the symptoms: The truck runs fine until it is driven awhile. Suddenly the truck will loose power, Hesitate, and...
June 21, 2007
2003 GMC Sierra 1500 Denali 6.0L MIL Lamp on VIN: 2GTFK69U13
P0446: EVAP Vent System Performance. thanks to anyone that can help me here i have this denali that will turn the engine light on for this evap code. i performed the required test and it led me to replace the evap canister vent solenoid. vehicle left shop and came back approx 3 weeks later with ...
June 27, 2007