Demystifying the P0446 Code Your Path to Automotive Clarity

It means you have a open or short in the vent cntrol valve that is allowing fuel vapor to be let into the air and not allowing the fuel system ... My Code Reader book says EVAP Emission Control System Vent Circuit Malf. Maybe somethings plugged up, if it's not venting, that would explain the extra ... DTC P0446 is a Type B DTC. ... DTC P0446 is a Type B DTC. ... An intermittent condition could be caused by a damaged EVAP vent housing, a temporary ... How to fix a Chevy / GMC P0446 engine Code: Evaporative Emission Control System Vent Control Circuit Malfunction Amazon Link to Smoke ... 4) Take an air compressor and blow the vent valve out. 5) reinstall and clear the code and it's fixed. Now I know the updated part from gm is ... DTC P0446 or P1450 indicates that Self-Test has detected the Evaporative Emission Control System has excessive fuel tank vacuum. 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. P0446 indicates an Evaporative Emission Control (EVAP) system vent control circuit malfunction. Typically, this indicates a faulty vent valve. General Technical & Electrical - P0446 EVAP Vent Control Circuit - Hey everyone! My 2007 2.3L gave a code P0446 : Evaporative Emission ... P0446 Evaporative Emission Control System Vent Control Malfunction · Navbar Menu · P0446 Evaporative Emission Control System Vent Control ...