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P0446 Diagnostic Trouble Code Discussion for October 2004

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
1997 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL52M7V
P0446: EVAP Canister Purge Vent Blocked. ... using the diagnostic tree from the shopkey information system to try and find what is causing a code P0446. Going through the tree it says to use EVAP Pressure/Purge Diagnostic Station [J41413]. Is there any way to test this system without this equipment. ...
October 12, 2004
1997 Ford Taurus GL 3.0L MIL Lamp on VIN: 1FALP52U7V
P0446: evap canister vent malfunction. the car came in needing a tune up in the worst way. the ses light had been on for 4 years. car has had complete tune up and vent and purge solenoids replaced. all lines have been blown through and are clear. what next??? customer is having doubts (do you all k...
October 18, 2004
2000 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDY32TOY
P0446: EVAP Vent Control Solenoid Circuit Malfunction. Car comes in about every 4 to 6 weeks with MIL on. Always the same story. Same codes PO440, PO 441 and PO 446. Smoke machine shows leak at fuel filler area. I like 3 or 4 others before thought it was the gas cap. It's been replaced 6 times and that's not the p...
October 21, 2004