Understanding the P0446 Code A Guide for Mechanics and DIYers

P0446 is a result of a test failure. The PCM closes the vent solenoid and opens the purge valve. It then monitors the fuel tank pressure sensor. Code P0446 indicates that there is an improper voltage drop in the EVAP Vent Valve circuit, which can be caused by either too little or too much electrical ... Make sure the hose is good and clear. Basically, the code sets when the tank pressure sensor sees a vacuum when the purge is opened to manifold ... I just got the P0446 EVAP MISSION CONTROL SYSTEM VENT CIRCUIT MALF error. From reading different posting here, it could be the VSV which I thought is the ... I keep getting code PO466 Evaporative emission control system vent control circuit. It comes on for a couple days then goes off and then reappears again. A P0446 is not a code that points to a specific problem, rather it indicates a voltage irregularity in the EVAP vent control circuit. P0446 Evaporative Emission Control System Vent Control Malfunction · Navbar Menu · P0446 Evaporative Emission Control System Vent Control ... And P0446 means the vent valve/circuit for the EVAP system is malfunctioning. Tester. It_s-Me October 31, 2022, 11:48am 4. OK, here'e the deal: 1997 2.2 Legacy CEL on. Fault code 446("Evaporative Emmission Contrl System Vent Malfunction"). This same code had come ... P0446 Evaporative Emission Control System Vent Control malfunction. ... okay I got this same code recently and have not been able to figure ...