Evaporative Emission Control Decoded P0446 Code Unveiled

When P0446 is triggered, the ECM has detected a short in the circuitry to activate the vent control valve, or the EVAP system failed to maintain the vacuum. This DTC checks the EVAP system (Figure 2) for a restricted or blocked vent path. The scan tool being used to check this system is the GM Tech 2. 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- ... The symptom from my understanding was some fuel leakage on the floor when filling up and/or the inability to put gas in the truck without the pump shutting off ... 26 - GM P0446 Vent System Performance-Diagnose & Fix it Right the First Time! ... The Common GM EVAP Code How to Diagnose and Repair. Search for the 6-digit code that identifies your institution to College Board, sometimes known as the College Board code or CEEB code. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/240/A/evap-emission-control-system-parts EVAP Explained! It's one of the most common ... In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve Performance code stored in it. What does code P0446 mean? When code P0446 shows up on a diagnostic scan of your vehicle, a technician knows that there is something going wrong with your EVAP ... P0446 is not an electrical issue--it indicates a physical blockage in the vent portion of the evap system.