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P0446 Diagnostic Trouble Code Discussion for June 2004

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
1996 Nissan Pickup SE 2.4L MIL Lamp on VIN: 1N6SD16S7T
P0446: evap vent controll malfunction. ... code p0446 evap solenoid was present, solenoid was seized from environment replaced solenoid and completed $3,000.00 in tsb's including pcm as solenoid had power but no ground during functional test through snap on scanner, solenoid can be grounded at pcm ...
June 22, 2004
1999 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF18B2X
P0446: EVAP Vent Control Solenoid Circuit Malfunction. ... Problem.. It came in with a P0446 for EVAP vent control Circuit Problem and as I try to diagnose I just get more and more confused by this thing. First thing I noticed as I checked it out on Mitchell was that there was a TSB for a new vacuum harness that s...
June 25, 2004