Join Now
International Automotive Technicians Network

P0440 Diagnostic Trouble Code Discussion for January 2012

General EVAP System Failure


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 P0440
Help Request Posted
2001 Subaru Forester L 2.5L MIL Lamp on VIN: JF1SF63511
P0440: EVAP System Performance. I can't seem to find a drive cycle procedure to make the evap monitor run. This is the car's third time here for the 440 code I have smoked the system twice, no leaks, replaced the vent valve and gas cap, acuated the purge, vent, and pressure control solenoids...
January 20, 2012
2001 Subaru Forester L 2.5L MIL Lamp on VIN: JF1SF63511
P0440: EVAP System Performance. I can't seem to find a drive cycle procedure to make the evap monitor run. This is the car's third time here for the 440 code I have smoked the system twice, no leaks, replaced the vent valve and gas cap, acuated the purge, vent, and pressure control solenoids...
January 20, 2012