Conquering P0446 A Step-by-Step Guide for Automotive Technicians

The code - P0446: EVAP Emission System vent control circuit. This can get triggered due to a bad connection, faulty canister close valve. My engine light came on for this problem (P0446) Evaporative Emission System Vent Control Circuit... additionally i cant seem to pump more that about $.35 worth ... The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). You might not have a leak, but rather a constriction in the system. It could be a defective vent solenoid, a plugged canister, etc. Read this ... P0446 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Control Circuit Malfunction". This can happen for multiple reasons. P0446 is a "vent control circuit malfunction" so the problem should be located somewhere in the vent valve or its wiring. If it were a leak it would be P0442. Corroded wire causing a check engine light with code P0446 and hard refueling. I have the PO446 and the gas cap seems ok, did the purge and vent valve…it keeps costing, the car has a rejection inspection sticker…need car ... The P0446 code in Alldata indicates it's the Evaporative Emission Canister Vent Solenoid Valve on the canister underneath the vehicle. Not the purge valve on ... 2004 - 2008 Ford F150 - P0446 Where do I start - I just bought an 06 F150 5.4 I keep getting code P0446 it is a hard code even when I clear ...