Join Now
International Automotive Technicians Network

P0446 Diagnostic Trouble Code Discussion for February 2005

EVAP Vent System Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0446
Help Request Posted
1997 Ford Explorer XL 4.0L Cuts out, MIL Lamp on, lack of power wot VIN: 1FMDU32X6V
P0446: evap sys vent ctrl fault. ... ford. We have replaced the evap solenoid and hoses. Still get code p0446 (next day). the alldata says use the dreaded breakout box.and test wiring to and from ecm. We have 12v to solenoid. we found bulletin for copde p0446, that does not have my specific c...
February 01, 2005
1997 Ford Explorer XL 4.0L Cuts out, MIL Lamp on, lack of power wot VIN: 1FMDU32X6V
P0446: evap sys vent ctrl fault. ... ford. We have replaced the evap solenoid and hoses. Still get code p0446 (next day). the alldata says use the dreaded breakout box.and test wiring to and from ecm. We have 12v to solenoid. we found bulletin for copde p0446, that does not have my specific c...
February 02, 2005
2001 GMC Yukon Denali XL 6.0L MIL Lamp on VIN: 1GKFK66U31
P0446: EVAP Vent System Performance. I Need help with Mode 6 data. Cel on with code for evap vent problem. Original valve leaked when scanner energized it (closed) or when ground wire attatched to white wire( computer ground). Was replaced with new solonoid from dealer. This one leaked also. Got ...
February 08, 2005
2002 Hyundai Sonata 2.4L MIL Lamp on VIN: KMHWF25S32
P0446: EVAP Vent Control Solenoid Circuit Performance (Closed). Checked evaporator hoses for leaks or pinched off (all ok), test canister valve (ohm'd out good but replaced anyway, according to flow chart) after replacing CCV valve the MIL light still came back on intermittantly--brought back in and did check voltage, ther...
February 09, 2005
2003 Buick LeSabre Custom 3.8L MIL Lamp on, VIN: 1G4HP52K23
P0446: EVAP Canister Purge Vent Blocked. we have a nice lesabre with no problems other than evap performnce genisys says vacuum excessive. there are no restrictions in any lines to and from canister vent valve, vacuum solenoid. pulled top off trunk no damage and ftp sensor always reads .22 but ftp is...
February 21, 2005
1999 Toyota Camry CE 2.2L MIL Lamp on
P0446: EVAP Vent Control Solenoid Circuit Malfunction. ... help.i aquired this car from another shop that has replaced few sensors for code p0446 than gave up.we replaced evap sensor for emison and also did tsb modification for p0446 still no luck. any help from toyota tech will be grately appreciated.thanks in ad...
February 27, 2005