Crack the Code P0446 Simplified for Automotive Savvy

The P0446 code means Evaporative Emission Control System Vent Control Circuit Malfunction. If your car's computer displays the P0446 code, there is something ... What are the symptoms of code P0446 ? ... In most cases, you will not notice any symptoms other than the MIL and slightly reduced engine ... 2005 Prius (186k miles) throwing the P0446 error code (Evap Emission Control System Vent Control Malfunction). It was in the shop twice last year for this. Code P0446 is a diagnostic trouble code (DTC) that indicates a problem with the evaporative emission control (EVAP) system vent control ... In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve Performance code stored in it. It looks like most likely something is wrong with the vapor canister valve, though it could also be the gas cap flap valve or many other things. This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996- ... i'm trying to solve my ECU P0446 light. Just changed the Gas cap, old one was pretty lose. I did restore the codes ( temporary and confirmed ) ... DTC P0446 Evaporative Emission Vent System Performance How to fix P0446 EVAP Vent system performance code on a GM or Chevy truck. in this video I will share with you how to diagnose and Repair the Root cause of a P0446 on a Chevy Impala.